輕量級.NET ORM、高性能.NET ORM 之 SqlSugar 開源ORM - ASP.NET
3.0最新API：
http://www.cnblogs.com/sunkaixuan/p/5911334.htmlhtml
一、前言/Preface
SqlSugar從去年到如今已經一年了，版本從1.0升到瞭如今的2.8 ，這是一個穩定版本 ，有數家公司已經項目上線，在這裏我將SqlSugar的功能從新整理成一篇新的貼子，但願你們喜歡。git
公司團隊項目、產品已經徹底拋棄EF，SqlSugar定位不是ORM,而是爲了方便的讓你去寫Sql。github
媲美原生ADO.NET的性能、簡潔的語法和支持Json 、Dynamic、 List<T>、 List<string[]>、 ValueType和 Dictionary 等多種類型的返回值 有不少亮點。sql
GitHub下載地址：
MSSQL .NET 4.0+數據庫
https://github.com/sunkaixuan/SqlSugar 編程
MSSQL .NET Core 版本json
https://github.com/sunkaixuan/ASP_NET_CORE_ORM_SqlSugar數組
Sqlite .net4.0+緩存
https://github.com/sunkaixuan/SqliteSugarcookie
MYSQL .NET 4.0+
http://www.cnblogs.com/sunkaixuan/p/5747259.html
ORACLE.NET 4.0+
https://github.com/sunkaixuan/OracleSugar
ORACLE CORE ,MYSQL CORE,SQLITE CORE 待開發
最新更新：
3.0.02
能夠設置生成實體的摘要
var temSummary = ClassTemplate.ClassFieldSummaryTemplate;
批量添加別名表功能
//批量設置別名表 //db.ClassGenerating.ForeachTables(db, tableName => //{ // db.AddMappingTable(new KeyValue() { Key = tableName.Replace("bbs.",""), Value = tableName }); //key實體名，value表名 //});
別名列功能
using System; using System.Collections.Generic; using System.Linq; using System.Text; using NewTest.Dao; using System.Data.SqlClient; using SqlSugar; namespace NewTest.Demos { //別名列的功能 public class MappingColumns : IDemos { public void Init() { Console.WriteLine("啓動MappingColumns.Init"); //全局設置 using (var db = SugarFactory.GetInstance()) { var list = db.Queryable<Student>().Where(it=>it.classId==1).ToList(); } } public class Student { //id public int classId { get; set; } //name public string className { get; set; } //sch_id public int classSchoolId { get; set; } public int isOk { get; set; } } /// <summary> /// 全局配置別名列（不區分表） /// </summary> public class SugarConfigs { //key實體字段名 value表字段名 ，KEY惟一不然異常 public static List<KeyValue> MpList = new List<KeyValue>(){ new KeyValue(){ Key="classId", Value="id"}, new KeyValue(){ Key="className", Value="name"}, new KeyValue(){ Key="classSchoolId", Value="sch_id"} }; } /// <summary> /// SqlSugar實例工廠 /// </summary> public class SugarFactory { //禁止實例化 private SugarFactory() { } public static SqlSugarClient GetInstance() { string connection = SugarDao.ConnectionString; //這裏能夠動態根據cookies或session實現多庫切換 var db = new SqlSugarClient(connection); //注意：只有啓動屬性映射纔可使用SetMappingColumns db.IsEnableAttributeMapping = true; db.SetMappingColumns(SugarConfigs.MpList);//設置關聯列 (引用地址賦值，每次賦值都只是存儲一個內存地址) return db; } } } }
經過屬性設置別名表和別名列和字段過濾
using System; using System.Collections.Generic; using System.Linq; using System.Text; using NewTest.Dao; using Models; using System.Data.SqlClient; using SqlSugar; namespace NewTest.Demos { //經過屬性的方法設置別名表和別名字段（主鍵和自添列都無需設置 SQLSUGAR會幫你自動處理） //注意:【屬性映射和 (SetMappingTables、SetMappingColumns)方式映射 2種選其中一，不清楚底層緩存機質不建議同時使用】 public class AttributesMapping : IDemos { public void Init() { Console.WriteLine("啓動AttributesMapping.Init"); using (var db = DBManager.GetInstance()) { //查詢 var list = db.Queryable<TestStudent>() .Where(it => it.className.Contains("小")).OrderBy(it => it.classSchoolId).Select<V_Student>(it => new V_Student() { id = it.classId, name = it.className }).ToList(); var list2 = db.Queryable<TestStudent>() .JoinTable<TestSchool>((s1, s2) => s1.classSchoolId == s2.classId) .OrderBy<TestSchool>((s1, s2) => s1.classId) .Select<TestStudent, TestSchool, V_Student>((s1, s2) => new V_Student() { id = s1.classId, name = s1.className, SchoolName = s2.className }).ToList(); //添加 TestStudent s = new TestStudent(); s.className = "屬性名"; s.classSchoolId = 1; var id = db.Insert(s); s.classId = id.ObjToInt(); //更新 db.Update(s); db.Update<TestStudent, int>(s, 100); db.Update<TestStudent>(s, it => it.classId == 100); db.SqlBulkReplace(new List<TestStudent>() { s }); //刪除 db.Delete<TestStudent>(it => it.classId == 100); } } /// <summary> /// 屬性只做爲初始化映射，SetMappingTables和SetMappingColumns能夠覆蓋 /// </summary> [SugarMapping(TableName = "Student")] public class TestStudent { [SugarMapping(ColumnName = "id")] public int classId { get; set; } [SugarMapping(ColumnName = "name")] public string className { get; set; } [SugarMapping(ColumnName = "sch_id")] public int classSchoolId { get; set; } public int isOk { get; set; } /// <summary> /// 數據庫並無這一列 /// </summary> public string errorField { get; set; } } [SugarMapping(TableName = "School")] public class TestSchool { [SugarMapping(ColumnName = "id")] public int classId { get; set; } [SugarMapping(ColumnName = "name")] public string className { get; set; } public int AreaId = 1; } } public class DBManager { public static SqlSugarClient GetInstance() { var db = new SqlSugarClient(SugarDao.ConnectionString); db.IsEnableAttributeMapping = true;//啓用屬性映射 db.IsIgnoreErrorColumns = true;//忽略非數據庫列 db.IsEnableLogEvent = true;//啓用日誌事件 db.LogEventStarting = (sql, par) => { Console.WriteLine(sql + " " + par + "\r\n"); }; return db; } } }
拉姆達支持了 contains
db.Update<School>(new { name = "藍翔2" }, it => array.Contains(it.id))
添加了高性能批量更新
db.SqlBulkReplace
2.9.1.0
添加了SQL日誌和監控功能
using System; using System.Collections.Generic; using System.Linq; using System.Text; using NewTest.Dao; using Models; using System.Data.SqlClient; using SqlSugar; namespace NewTest.Demos { //日誌記錄功能 public class Log : IDemos { public void Init() { Console.WriteLine("啓動Log.Init"); using (var db = SugarDemoDao.GetInstance()) { var a1 = db.Queryable<Student>().Where(it => it.id == 1).ToList(); var a2 = db.Queryable<Student>().OrderBy(it => it.id).ToList(); } } public class SugarConfigs { public static Action<string, string> LogEventStarting = (sql, pars) => { Console.WriteLine("starting:" + sql + " " + pars); using (var db = SugarDemoDao.GetInstance()) { //日誌記錄件事件裏面用到數據庫操做 IsEnableLogEvent必定要爲false不然將引發死循環，而且要新開一個數據實例 像我這樣寫就沒問題。 db.IsEnableLogEvent = false; db.ExecuteCommand("select 1"); } }; public static Action<string, string> LogEventCompleted = (sql, pars) => { Console.WriteLine("completed:" + sql + " " + pars); }; } /// <summary> /// SqlSugar /// </summary> public class SugarDemoDao { public static SqlSugarClient GetInstance() { var db = new SqlSugarClient(SugarDao.ConnectionString); db.IsEnableLogEvent = true;//啓用日誌事件 db.LogEventStarting = SugarConfigs.LogEventStarting; db.LogEventCompleted = SugarConfigs.LogEventCompleted; return db; } } } }
大量語法優化
之前 .select<oldT,newT>(it=>newT{ id=it.id})能夠寫成.select<newT>(it=>newT{ id=it.id})
之前 .select<T,int>(it=>it.id)能夠寫成.select<int>(it=>it.id);
Join也進行了美化能夠不用寫第一個T
//2表關聯查詢 var jList = db.Queryable<Student>() .JoinTable<School>((s1, s2) => s1.sch_id == s2.id) //默認left join .Where<School>((s1, s2) => s1.id == 1) .Select("s1.*,s2.name as schName") .ToDynamic(); /*等於同於 SELECT s1.*,s2.name as schName FROM [Student] s1 LEFT JOIN [School] s2 ON s1.sch_id = s2.id WHERE s1.id = 1 */ //2表關聯查詢並分頁 var jList2 = db.Queryable<Student>() .JoinTable<School>((s1, s2) => s1.sch_id == s2.id) //默認left join //若是要用inner join這麼寫 //.JoinTable<School>((s1, s2) => s1.sch_id == s2.id ,JoinType.INNER) .Where<School>((s1, s2) => s1.id > 1) .OrderBy(s1 => s1.name) .Skip(10) .Take(20) .Select("s1.*,s2.name as schName") .ToDynamic(); //3表查詢並分頁 var jList3 = db.Queryable<Student>() .JoinTable<School>((s1, s2) => s1.sch_id == s2.id) // left join School s2 on s1.id=s2.id .JoinTable<School>((s1, s3) => s1.sch_id == s3.id) // left join School s3 on s1.id=s3.id .Where<School>((s1, s2) => s1.id > 1) // where s1.id>1 .Where(s1 => s1.id > 0) .OrderBy<School>((s1, s2) => s1.id) //order by s1.id 多個order能夠 .oderBy().orderby 疊加 .Skip(10) .Take(20) .Select("s1.*,s2.name as schName,s3.name as schName2")//select目前只支持這種寫法 .ToDynamic(); //上面的方式都是與第一張表join，第三張表想與第二張表join寫法以下 List<V_Student> jList4 = db.Queryable<Student>() .JoinTable<School>((s1, s2) => s1.sch_id == s2.id) // left join School s2 on s1.id=s2.id .JoinTable<School, Area>((s1, s2, a1) => a1.id == s2.AreaId)// left join Area a1 on a1.id=s2.AreaId 第三張表與第二張表關聯 .JoinTable<Area, School>((s1, a1, s3) => a1.id == s3.AreaId)// left join School s3 on a1.id=s3.AreaId 第四第表第三張表關聯 .JoinTable<School>((s1, s4) => s1.sch_id == s4.id) // left join School s2 on s1.id=s4.id .Select<School, Area, V_Student>((s1, s2, a1) => new V_Student { id = s1.id, name = s1.name, SchoolName = s2.name, AreaName = a1.name }).ToList();
2.8.01設置不插入列
2.8.0.0 強化了 SELECT 新容器轉換功能，之前只能 id=it.id 這種等值操做，如今支持了類型轉換函數，另外還支持了外部傳參和內部硬編碼的寫法
//新容器轉換函數的支持,例子外其它寫法暫不支持 var f1 = db.Queryable<InsertTest>().Select<InsertTest, Student>(it => new Student() { name = it.d1.ObjToString(), id = it.int1.ObjToInt() // 支持ObjToXXX 全部函數 }).ToList(); var f2 = db.Queryable<InsertTest>().Select<InsertTest, Student>(it => new Student() { name = Convert.ToString(it.d1),//支持Convet.ToXX全部函數 id = it.int1.ObjToInt(), sex = Convert.ToString(it.d1), }).ToList(); var f3 = db.Queryable<InsertTest>() .JoinTable<InsertTest, InsertTest>((i1, i2) => i1.id == i2.id) .Select<InsertTest, InsertTest, Student>((i1, i2) => new Student() { name = Convert.ToString( i1.d1), //多表查詢例子 id = i1.int1.ObjToInt( ), sex = Convert.ToString( i2.d1 ), }).ToList(); //Select 外部參數用法 var f4 = db.Queryable<InsertTest>().Where("1=1", new { id = id + 100 }).Select<InsertTest, Student>(it => new Student() { id = "@id".ObjToInt(), //取的是 id+100 的值 name = "張三",//內部參數能夠直接寫 sex = it.txt, sch_id=it.id }).ToList(); var f6 = db.Queryable<InsertTest>() .JoinTable<InsertTest, InsertTest>((i1, i2) => i1.id == i2.id) .Where("1=1", new { id = 100, name = "張三",isOk=true }) //外部傳參給@id .Select<InsertTest, InsertTest, Student>((i1, i2) => new Student() { name = "@name".ObjToString(), //多表查詢例子 id = "@id".ObjToInt(), sex = i2.txt, sch_id = 1, isOk = "@isOk".ObjToBool() }).ToList();
2.7.1.3 更新了SqlSugar全部的函數的備註、類的備註
OracleSugar已經上傳NUGET GIT文章最下方有地址
2.7.08 支持了字典參數
List<Student> list2 = db.SqlQuery<Student>("select * from Student where id=@id", new { id = 1 }); 其中new { id = 1 }能夠改爲 Dictionary<string, object>(){{id,1}}
db.Update<School>(new { name = "藍翔14" }, it => it.id == 14); 其中 new { name = "藍翔14" } 能夠改爲 Dictionary<string, object>(){{name,"藍翔14"}}
這樣作有什麼好處呢？動態權限的時候弱類型會比較好處理
2.7.1.0 JoinTable支持了字符串,能夠作更復雜的查詢例如：
using (SqlSugarClient db = SugarDao.GetInstance()) { var childQuery = db.Queryable<Area>().Where("id=@id").Select(it => new { id=it.id }).ToSql();//建立子查詢SQL string childTableName=string.Format("({0})",childQuery.Key);//將SQL語句用()包成表 var queryable = db.Queryable<Student>() .JoinTable<Student, School>((s1, s2) => s1.sch_id == s2.id) .JoinTable(childTableName, "a1", "a1.id=s2.areaid", new { id = 1 }, JoinType.INNER) .OrderBy(s1 => s1.id); //SELECT * FROM ( //SELECT newid = s1.id, studentName = s1.name, schoolName = s2.name, areaName = a1.name ,row_index=ROW_NUMBER() OVER(ORDER BY s1.id ASC ) FROM [Student] s1 //LEFT JOIN School s2 ON ( s1.sch_id = s2.id ) //INNER JOIN (SELECT * FROM [Area] WHERE 1=1 AND id=@id ) a1 ON a1.id=s2.areaid WHERE 1=1 // //) t WHERE t.row_index BETWEEN 1 AND 200 var list= queryable.Select<Student, School, Area, classNew>((s1, s2, a1) => new classNew { newid = s1.id, studentName = s1.name, schoolName = s2.name, areaName = a1.name }) .ToPageList(0,200); var count=queryable.Count(); }
優勢：
一、高性能，達到原生最高水準，比SqlHelper性能要高，比Dapper快30% 比EF快50%
二、支持多種數據庫 ，sql版本更新最快，其它會按期更新，能夠在多種數據庫用一種編程方式
三、支持.net Core
四、支持多庫並行計算
五、帶有實體生成函數和T4模版生成實體
六、無需任何配置 ，還你一個乾淨的model，能夠沒有主鍵 ，也能夠有多個主鍵 ，或者多個自增列
七、輕量級 SqlSugar ORM 一個DLL只有150 K ，一個EF DLL有5M ，一個EF擴展DLL有500多K
二、功能介紹/Product function introduction
查詢/Search
一、Queryable用於拉姆達操做數據庫
二、SqlQuery用於執行SQL和存儲過程
三、Sqlable一種更新近SQL的寫法
一、Queryable 用於拉姆達表達式操做（支持Join多表） / Select single table or view
using (var db = SugarDao.GetInstance()) { //---------Queryable<T>,擴展函數查詢---------// //針對單表或者視圖查詢 //查詢全部 var student = db.Queryable<Student>().ToList(); var studentDynamic = db.Queryable<Student>().ToDynamic(); var studentJson = db.Queryable<Student>().ToJson(); //查詢單條 var single = db.Queryable<Student>().Single(c => c.id == 1); //查詢單條沒有記錄返回空對象 var singleOrDefault = db.Queryable<Student>().SingleOrDefault(c => c.id == 11111111); //查詢單條沒有記錄返回空對象 var single2 = db.Queryable<Student>().Where(c => c.id == 1).SingleOrDefault(); //查詢第一條 var first = db.Queryable<Student>().Where(c => c.id == 1).First(); var first2 = db.Queryable<Student>().Where(c => c.id == 1).FirstOrDefault(); //取11-20條 var page1 = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).Skip(10).Take(10).ToList(); //取11-20條 等於 Skip(pageIndex-1)*pageSize).Take(pageSize) 等於 between (pageIndex-1)*pageSize and pageIndex*pageSize var page2 = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).ToPageList(2, 10); //查詢條數 var count = db.Queryable<Student>().Where(c => c.id > 10).Count(); //從第2條開始之後取全部 var skip = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).Skip(2).ToList(); //取前2條 var take = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).Take(2).ToList(); // Not like string conval = "a"; var notLike = db.Queryable<Student>().Where(c => !c.name.Contains(conval.ToString())).ToList(); //Like conval = "三"; var like = db.Queryable<Student>().Where(c => c.name.Contains(conval)).ToList(); //支持字符串Where 讓你解決，更復雜的查詢 var student12 = db.Queryable<Student>().Where(c => "a" == "a").Where("id>@id", new { id = 1 }).ToList(); var student13 = db.Queryable<Student>().Where(c => "a" == "a").Where("id>100 and id in( select 1)").ToList(); //存在記錄反回true，則否返回false bool isAny100 = db.Queryable<Student>().Any(c => c.id == 100); bool isAny1 = db.Queryable<Student>().Any(c => c.id == 1); //獲取最大Id object maxId = db.Queryable<Student>().Max(it => it.id); int maxId1 = db.Queryable<Student>().Max(it => it.id).ObjToInt();//拉姆達 int maxId2 = db.Queryable<Student>().Max<int>("id"); //字符串寫法 //獲取最小 int minId1 = db.Queryable<Student>().Where(c => c.id > 0).Min(it => it.id).ObjToInt();//拉姆達 int minId2 = db.Queryable<Student>().Where(c => c.id > 0).Min<int>("id");//字符串寫法 //order By var orderList = db.Queryable<Student>().OrderBy("id desc,name asc").ToList();//字符串支持多個排序 //能夠多個order by表達示 var order2List = db.Queryable<Student>().OrderBy(it => it.name).OrderBy(it => it.id, OrderByType.desc).ToList(); // order by name as ,order by id desc //In var intArray = new[] { "5", "2", "3" }; var intList = intArray.ToList(); var listnew = db.Queryable<Student>().Where(it => intArray.Contains(it.name)).ToList(); var list0 = db.Queryable<Student>().In(it => it.id, 1, 2, 3).ToList(); var list1 = db.Queryable<Student>().In(it => it.id, intArray).ToList(); var list2 = db.Queryable<Student>().In("id", intArray).ToList(); var list3 = db.Queryable<Student>().In(it => it.id, intList).ToList(); var list4 = db.Queryable<Student>().In("id", intList).ToList(); //分組查詢 var list7 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).Select("sex,count(*) Count").ToDynamic(); var list8 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).GroupBy(it => it.id).Select("id,sex,count(*) Count").ToDynamic(); List<StudentGroup> list9 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).Select<StudentGroup>("Sex,count(*) Count").ToList(); List<StudentGroup> list10 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy("sex").Select<StudentGroup>("Sex,count(*) Count").ToList(); //SELECT Sex,Count=count(*) FROM Student WHERE 1=1 AND (id < 20) GROUP BY Sex --生成結果 //2表關聯查詢 var jList = db.Queryable<Student>() .JoinTable<School>((s1, s2) => s1.sch_id == s2.id) //默認left join .Where<School>((s1, s2) => s1.id == 1) .Select("s1.*,s2.name as schName") .ToDynamic(); /*等於同於 SELECT s1.*,s2.name as schName FROM [Student] s1 LEFT JOIN [School] s2 ON s1.sch_id = s2.id WHERE s1.id = 1 */ //2表關聯查詢並分頁 var jList2 = db.Queryable<Student>() .JoinTable<School>((s1, s2) => s1.sch_id == s2.id) //默認left join //若是要用inner join這麼寫 //.JoinTable<School>((s1, s2) => s1.sch_id == s2.id ,JoinType.INNER) .Where<School>((s1, s2) => s1.id > 1) .OrderBy(s1 => s1.name) .Skip(10) .Take(20) .Select("s1.*,s2.name as schName") .ToDynamic(); //3表查詢並分頁 var jList3 = db.Queryable<Student>() .JoinTable<School>((s1, s2) => s1.sch_id == s2.id) // left join School s2 on s1.id=s2.id .JoinTable<School>((s1, s3) => s1.sch_id == s3.id) // left join School s3 on s1.id=s3.id .Where<School>((s1, s2) => s1.id > 1) // where s1.id>1 .Where(s1 => s1.id > 0) .OrderBy<School>((s1, s2) => s1.id) //order by s1.id 多個order能夠 .oderBy().orderby 疊加 .Skip(10) .Take(20) .Select("s1.*,s2.name as schName,s3.name as schName2")//select目前只支持這種寫法 .ToDynamic(); //上面的方式都是與第一張表join，第三張表想與第二張表join寫法以下 List<V_Student> jList4 = db.Queryable<Student>() .JoinTable<School>((s1, s2) => s1.sch_id == s2.id) // left join School s2 on s1.id=s2.id .JoinTable<School, Area>((s1, s2, a1) => a1.id == s2.AreaId)// left join Area a1 on a1.id=s2.AreaId 第三張表與第二張表關聯 .JoinTable<Area, School>((s1, a1, s3) => a1.id == s3.AreaId)// left join School s3 on a1.id=s3.AreaId 第四第表第三張表關聯 .JoinTable<School>((s1, s4) => s1.sch_id == s4.id) // left join School s2 on s1.id=s4.id .Select<School, Area, V_Student>((s1, s2, a1) => new V_Student { id = s1.id, name = s1.name, SchoolName = s2.name, AreaName = a1.name }).ToList(); //等同於 //SELECT id = s1.id, name = s1.name, SchoolName = s2.name, AreaName = a1.name //FROM [Student] s1 //LEFT JOIN School s2 ON ( s1.sch_id = s2.id ) //LEFT JOIN Area a1 ON ( a1.id = s2.AreaId ) //第三張表與第二張表關聯 //LEFT JOIN School s3 ON ( a1.id = s3.AreaId ) //第四張表與第三張表關聯 //LEFT JOIN School s4 ON ( s1.sch_id = s4.id ) //WHERE 1=1 //Join子查詢語句加分頁的寫法 var childQuery = db.Queryable<Area>().Where("id=@id").Select(it => new { id = it.id }).ToSql();//建立子查詢SQL string childTableName = string.Format("({0})", childQuery.Key);//將SQL語句用()包成表 var queryable = db.Queryable<Student>() .JoinTable<School>((s1, s2) => s1.sch_id == s2.id) //LEFT JOIN School s2 ON ( s1.sch_id = s2.id ) .JoinTable(childTableName, "a1", "a1.id=s2.areaid", new { id = 1 }, JoinType.INNER) //INNER JOIN (SELECT * FROM [Area] WHERE 1=1 AND id=@id ) a1 ON a1.id=s2.areaid .OrderBy(s1 => s1.id); var list = queryable.Select<School, Area, V_Student>((s1, s2, a1) => new V_Student { id = s1.id, name = s1.name, SchoolName = s2.name, AreaName = a1.name }) .ToPageList(0, 200); var count2 = list.Count; //拼接例子 var queryable2 = db.Queryable<Student>().Where(it => true); if (maxId.ObjToInt() == 1) { queryable2.Where(it => it.id == 1); } else { queryable2.Where(it => it.id == 2); } var listJoin = queryable2.ToList(); //queryable和SqlSugarClient解耦 var par = new Queryable<Student>().Where(it => it.id == 1);//聲名沒有connection對象的Queryable par.DB = db; var listPar = par.ToList(); //查看生成的sql和參數 var id = 1; var sqlAndPars = db.Queryable<Student>().Where(it => it.id == id).OrderBy(it => it.id).ToSql(); //條件函數的支持(字段暫不支持函數,只有參數支持) 目前只支持這麼多 var par1 = "2015-1-1"; var par2 = " 我 有空格A, "; var r1 = db.Queryable<Student>().Where(it => it.name == par1.ObjToString()).ToSql(); //ObjToString會將null轉轉成"" var r2 = db.Queryable<InsertTest>().Where(it => it.d1 == par1.ObjToDate()).ToSql(); var r3 = db.Queryable<InsertTest>().Where(it => it.id == 1.ObjToInt()).ToSql();//ObjToInt會將null轉轉成0 var r4 = db.Queryable<InsertTest>().Where(it => it.id == 2.ObjToDecimal()).ToSql(); var r5 = db.Queryable<InsertTest>().Where(it => it.id == 3.ObjToMoney()).ToSql(); var r6 = db.Queryable<InsertTest>().Where(it => it.v1 == par2.Trim()).ToSql(); var convert1 = db.Queryable<Student>().Where(c => c.name == "a".ToString()).ToList(); var convert2 = db.Queryable<Student>().Where(c => c.id == Convert.ToInt32("1")).ToList(); var convert3 = db.Queryable<Student>().Where(c => c.name == par2.ToLower()).ToList(); var convert4 = db.Queryable<Student>().Where(c => c.name == par2.ToUpper()).ToList(); var convert5= db.Queryable<Student>().Where(c => DateTime.Now > Convert.ToDateTime("2015-1-1")).ToList(); var c1 = db.Queryable<Student>().Where(c => c.name.Contains("a")).ToList(); var c2 = db.Queryable<Student>().Where(c => c.name.StartsWith("a")).ToList(); var c3 = db.Queryable<Student>().Where(c => c.name.EndsWith("a")).ToList(); var c4 = db.Queryable<Student>().Where(c => !string.IsNullOrEmpty(c.name)).ToList(); }
二、SqlQuery 用於執行原生SQL和存儲過程 / Execution of native SQL
using (var db = SugarDao.GetInstance()) { //轉成list List<Student> list1 = db.SqlQuery<Student>("select * from Student"); //轉成list帶參 List<Student> list2 = db.SqlQuery<Student>("select * from Student where id=@id", new { id = 1 }); //轉成dynamic dynamic list3 = db.SqlQueryDynamic("select * from student"); //轉成json string list4 = db.SqlQueryJson("select * from student"); //返回int var list5 = db.SqlQuery<int>("select top 1 id from Student").SingleOrDefault(); //反回鍵值 Dictionary<string, string> list6 = db.SqlQuery<KeyValuePair<string, string>>("select id,name from Student").ToDictionary(it => it.Key, it => it.Value); //反回List<string[]> var list7 = db.SqlQuery<string[]>("select top 1 id,name from Student").SingleOrDefault(); //存儲過程 var spResult = db.SqlQuery<School>("exec sp_school @p1,@p2", new { p1 = 1, p2 = 2 }); //存儲過程加Output var pars = SqlSugarTool.GetParameters(new { p1 = 1,p2=0 }); //將匿名對象轉成SqlParameter db.IsClearParameters = false;//禁止清除參數 pars[1].Direction = ParameterDirection.Output; //將p2設爲 output var spResult2 = db.SqlQuery<School>("exec sp_school @p1,@p2 output", pars); db.IsClearParameters = true;//啓動請動清除參數 var outPutValue = pars[1].Value;//獲取output @p2的值 //獲取第一行第一列的值 string v1 = db.GetString("select '張三' as name"); int v2 = db.GetInt("select 1 as name"); double v3 = db.GetDouble("select 1 as name"); decimal v4 = db.GetDecimal("select 1 as name"); //.... }
三、Sqlable 更貼近SQL的一種編程方式，適用於複雜查詢 / Complex query
//---------Sqlable,建立多表查詢---------// //多表查詢 List<School> dataList = db.Sqlable() .From("school", "s") .Join("student", "st", "st.id", "s.id", JoinType.INNER) .Join("student", "st2", "st2.id", "st.id", JoinType.LEFT) .Where("s.id>100 and s.id<@id") .Where("1=1")//能夠多個WHERE .SelectToList<School/*新的Model我這裏沒有因此寫的School*/>("st.*", new { id = 1 }); //多表分頁 List<School> dataPageList = db.Sqlable() .From("school", "s") .Join("student", "st", "st.id", "s.id", JoinType.INNER) .Join("student", "st2", "st2.id", "st.id", JoinType.LEFT) .Where("s.id>100 and s.id<100") .SelectToPageList<School>("st.*", "s.id", 1, 10); //多表分頁WHERE加子查詢 List<School> dataPageList2 = db.Sqlable() .From("school", "s") .Join("student", "st", "st.id", "s.id", JoinType.INNER) .Join("student", "st2", "st2.id", "st.id", JoinType.LEFT) .Where("s.id>100 and s.id<100 and s.id in (select 1 )" /*這裏面寫子查詢均可以*/) .SelectToPageList<School>("st.*", "s.id", 1, 10); //--------轉成List Dynmaic 或者 Json-----// //不分頁 var list1 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToDynamic("*", new { id = 1 }); var list2 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToJson("*", new { id = 1 }); var list3 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToDataTable("*", new { id = 1 }); //分頁 var list4 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToPageDynamic("s.*", "l.id", 1, 10, new { id = 1 }); var list5 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToPageTable("s.*", "l.id", 1, 10, new { id = 1 }); var list6 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToPageDynamic("s.*", "l.id", 1, 10, new { id = 1 }); //--------拼接-----// Sqlable sable = db.Sqlable().From<Student>("s").Join<School>("l", "s.sch_id", "l.id", JoinType.INNER); string name = "a"; int id = 1; if (!string.IsNullOrEmpty(name)) { sable = sable.Where("s.name=@name"); } if (!string.IsNullOrEmpty(name)) { sable = sable.Where("s.id=@id or s.id=100"); } if (id > 0) { sable = sable.Where("l.id in (select top 10 id from school)");//where加子查詢 } var pars = new { id = id, name = name }; int pageCount = sable.Count(pars); var list7 = sable.SelectToPageList<Student>("s.*","l.id desc",1,20, pars);
四、新容器轉換 / To new container
using (SqlSugarClient db = SugarDao.GetInstance()) { //單表操做將Student轉換成V_Student var queryable = db.Queryable<Student>().Where(c => c.id < 10) .Select<V_Student>(c => new V_Student { id = c.id, name = c.name, AreaName = "默認地區", SchoolName = "默認學校", SubjectName = "NET" }); var list = queryable.ToList(); var json = queryable.ToJson(); var dynamic = queryable.ToDynamic(); //多表操做將Student轉換成V_Student var queryable2 = db.Queryable<Student>() .JoinTable<School>((s1, s2) => s1.sch_id == s2.id) .Where<School>((s1, s2) => s2.id < 10) .Select<School, V_Student>((s1, s2) => new V_Student() { id = s1.id, name = s1.name, AreaName = "默認地區", SchoolName = s2.name, SubjectName = "NET" });//select new 目前只支持這種寫法 var list2 = queryable2.ToList(); var json2 = queryable2.ToJson(); var dynamic2 = queryable2.ToDynamic(); //select字符串 轉換成V_Student var list3 = db.Queryable<Student>() .JoinTable<School>((s1, s2) => s1.sch_id == s2.id) .Where(s1 => s1.id <= 3) .Select<V_Student>("s1.*,s2.name SchoolName") .ToList(); //select字符串 轉換成Json var json3 = db.Queryable<Student>() .JoinTable<School>((s1, s2) => s1.sch_id == s2.id) .Where(s1 => s1.id <= 3) .Select<V_Student>("s1.*,s2.name SchoolName") .ToJson(); //select字符串 轉換成Json var dynamic3 = db.Queryable<Student>() .JoinTable<School>((s1, s2) => s1.sch_id == s2.id) .Where(s1 => s1.id <= 3) .Select<V_Student>("s1.*,s2.name SchoolName") .ToDynamic(); //新容器轉換函數的支持 只支持ObjToXXX和Convert.ToXXX var f1 = db.Queryable<InsertTest>().Select<Student>(it => new Student() { name = it.d1.ObjToString(), id = it.int1.ObjToInt() // 支持ObjToXXX 全部函數 }).ToList(); var f2 = db.Queryable<InsertTest>().Select<Student>(it => new Student() { name = Convert.ToString(it.d1),//支持Convet.ToXX全部函數 id = it.int1.ObjToInt(), sex = Convert.ToString(it.d1), }).ToList(); var f3 = db.Queryable<InsertTest>() .JoinTable<InsertTest>((i1, i2) => i1.id == i2.id) .Select<InsertTest, Student>((i1, i2) => new Student() { name = Convert.ToString(i1.d1), //多表查詢例子 id = i1.int1.ObjToInt(), sex = Convert.ToString(i2.d1), }).ToList(); //Select 外部參數用法 var f4 = db.Queryable<InsertTest>().Where("1=1", new { id = 100 }).Select<Student>(it => new Student() { id = "@id".ObjToInt(), //取的是 100 的值 name = "張三",//內部參數能夠直接寫 sex = it.txt, sch_id = it.id }).ToList(); var f6 = db.Queryable<InsertTest>() .JoinTable<InsertTest>((i1, i2) => i1.id == i2.id) .Where("1=1", new { id = 100, name = "張三", isOk = true }) //外部傳參給@id .Select<InsertTest, Student>((i1, i2) => new Student() { name = "@name".ObjToString(), //多表查詢例子 id = "@id".ObjToInt(), sex = i2.txt, sch_id = 1, isOk = "@isOk".ObjToBool() }).ToList(); }
添加/Add
using (SqlSugarClient db = SugarDao.GetInstance())//開啓數據庫鏈接 { Student s = new Student() { name = "張" + new Random().Next(1, int.MaxValue) }; db.Insert(s); //插入一條記錄 (有主鍵也好，沒主鍵也好，有自增列也好均可以插進去) List<Student> list = new List<Student>() { new Student() { name="張"+new Random().Next(1,int.MaxValue) }, new Student() { name="張"+new Random().Next(1,int.MaxValue) } }; db.InsertRange(list); //批量插入 } }
新功能SqlSugar 2.7 高性能批量插入，
using (SqlSugarClient db = SugarDao.GetInstance())//開啓數據庫鏈接 { var list = new List<Student>() { new Student(){ isOk=true, name="張三", sch_id=1, sex="男"}, new Student(){ isOk=true, name="sun", sch_id=1, sex="女"}, new Student(){ isOk=true, name="mama", sch_id=1, sex="gril"} }; db.SqlBulkCopy<Student>(list); }
2.8.01設置不插入列
//設置不插入 db.DisableInsertColumns = new string[] { "sex" };//設置sex不插入 Student s2 = new Student() { name = "張" + new Random().Next(1, int.MaxValue) }; db.Insert(s); //插入一
更新/Update
using (var db = SugarDao.GetInstance()) { //指定列更新 db.Update<School>(new { name = "藍翔2" }, it => it.id == id); db.Update<School, int>(new { name = "藍翔2" }, 1, 3, 12); db.Update<School, string>(new { name = "藍翔2" }, new string[] { "1", "2" }); //整個實體更新 db.Update(new School { id = id, name = "藍翔2" }); db.Update<School>(new School { id = id, name = "藍翔2" }, it => it.id == id); //設置不更新列 db.DisableUpdateColumns = new string[] { "CreateTime" };//設置CreateTime不更新 TestUpdateColumns updObj = new TestUpdateColumns() { VGUID = Guid.Parse("542b5a27-6984-47c7-a8ee-359e483c8470"), Name = "xx", Name2 = "xx2", IdentityField = 0, CreateTime = null }; //CreateTime將不會被更新 db.Update(updObj); //之前實現這種更新須要用指定列的方式實現，如今就簡單多了。 }
刪除和假刪除/Delete And False Delete
//刪除 db.Delete<School, int>(10);//注意主鍵必需爲實體類的第一個屬性 db.Delete<School>(it => it.id > 100); //主鍵批量刪除 db.Delete<School, string>(new string[] { "100", "101", "102" }); //非主鍵批量刪除 db.Delete<School, string>(it => it.name, new string[] { "" }); db.Delete<School, int>(it => it.id, new int[] { 20, 22 }); //假刪除 //db.FalseDelete<school>("is_del", 100); //等同於 update school set is_del=1 where id in(100) //db.FalseDelete<school>("is_del", it=>it.id==100);
全局過濾器/ Gobal Filter
這功能主要用於通用權限設計等功能， 當有不少WHERE重複，而且動態 這時候就須要在全局設置好過濾器接口集合，程序中使用只須要設KEY即可
/// <summary> /// 過濾器 /// </summary> public partial class Filter : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { using (SqlSugarClient db = SugarDaoFilter.GetInstance())//開啓數據庫鏈接 { //設置走哪一個過濾器 db.CurrentFilterKey = "role"; //queryable var list = db.Queryable<Student>().ToList(); //經過全局過濾器對須要權限驗證的數據進行過濾 //至關於db.Queryable<Student>().Where("id=@id",new{id=1}) //sqlable var list2 = db.Sqlable().Form<Student>("s").SelectToList<Student>("*"); //同上 //sqlQuery var list3 = db.SqlQuery<Student>("select * from Student"); //同上 } } } /// <summary> /// 擴展SqlSugarClient /// </summary> public class SugarDaoFilter { //禁止實例化 private SugarDaoFilter() { } /// <summary> /// 頁面所須要的過濾函數 /// </summary> private static Dictionary<string, Func<KeyValueObj>> _filterParas = new Dictionary<string, Func<KeyValueObj>>() { { "role",()=>{ return new KeyValueObj(){ Key=" id=@id" , Value=new{ id=1}}; } }, { "org",()=>{ return new KeyValueObj(){ Key=" orgId=@orgId" , Value=new{ orgId=1}}; } }, }; public static SqlSugarClient GetInstance() { string connection = System.Configuration.ConfigurationManager.ConnectionStrings[@"sqlConn"].ToString(); //這裏能夠動態根據cookies或session實現多庫切換 var reval = new SqlSugarClient(connection); reval.SetFilterFilterParas(_filterParas); return reval; } }
行列同時過濾 2.7.07
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using SqlSugar; using Models; namespace WebTest.Demos {/// <summary> /// 過濾器 (查詢行過濾加查詢列過濾) /// </summary> public partial class Filter2 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { using (SqlSugarClient db = SugarDaoFilter.GetInstance())//開啓數據庫鏈接 { //設置走哪一個過濾器 db.CurrentFilterKey = "role"; //queryable var list = db.Queryable<Student>().ToJson(); //設置走哪一個過濾器 db.CurrentFilterKey = "org"; //queryable var list2 = db.Queryable<Student>().ToJson(); } } } /// <summary> /// 擴展SqlSugarClient /// </summary> public class SugarDaoFilter { //禁止實例化 private SugarDaoFilter() { } /// <summary> /// 頁面所須要的過濾行 /// </summary> private static Dictionary<string, Func<KeyValueObj>> _filterParas = new Dictionary<string, Func<KeyValueObj>>() { { "role",()=>{ return new KeyValueObj(){ Key=" id=@id" , Value=new{ id=1}}; } }, { "org",()=>{ return new KeyValueObj() { Key = " id=@id", Value = new { id = 2 } }; } }, }; /// <summary> /// 頁面所須要的過濾列 /// </summary> private static Dictionary<string, List<string>> _filterColumns = new Dictionary<string, List<string>>() { { "role",new List<string>(){"id","name"} }, { "org",new List<string>(){"name"} }, }; public static SqlSugarClient GetInstance() { string connection = System.Configuration.ConfigurationManager.ConnectionStrings[@"sqlConn"].ToString(); //這裏能夠動態根據cookies或session實現多庫切換 var reval = new SqlSugarClient(connection); //支持sqlable和queryable reval.SetFilterFilterParas(_filterParas); //列過濾只支持queryable reval.SetFilterFilterParas(_filterColumns); return reval; } } }
無參模式/No Parameter
將IsGetPageParas設爲true以後頁面的參數都不須要使用 new{}來賦值
using (SqlSugarClient db = SugarDao.GetInstance())//開啓數據庫鏈接 { db.IsGetPageParas = true;//使用無參模式直接將Requst中的ID傳給@id無需在代碼中寫出來 var list = db.Queryable<Student>().Where("id=@id").ToList(); //sqlable queryable sqlquery通用 //獲取頁面全部參數到鍵值對 //var kvs= SqlSugarTool.GetParameterDictionary(); //之前寫法 //var xx = db.Queryable<Student>().Where("id=@id", new { id=Request["id"] }).ToList(); }
事務 /Transaction
using (SqlSugarClient db = SugarDao.GetInstance())//開啓數據庫鏈接 { db.IsNoLock = true;//啓用無鎖查詢 db.CommandTimeOut = 30000;//設置超時時間 try { db.BeginTran();//開啓事務 db.CommitTran();//提交事務 } catch (Exception) { db.RollbackTran();//回滾事務 throw; } }
公開函數 /Common Method
//ToJoinSqlInVal var par = new string[] { "a", "c", "3" }; var ids = par.ToJoinSqlInVal();//將數組轉成 'a','c','3' 有防SQL注入處理 //ToSqlValue try { var par2 = "a'"; var newpar2 = par2.ToSqlValue();//對字符串防注入處理 } catch (Exception ex) { Response.Write(ex.Message); } //SqlLikeWordEncode 處理LIKE特殊字符 var likestr = SqlSugarTool.SqlLikeWordEncode("[%%%"); //GetParameterArray 獲取頁面參數全部參數的鍵和值 var pars = SqlSugarTool.GetParameterArray(); //將匿名對象轉成SqlParameter var par3= SqlSugarTool.GetParameters(new { id=1});
實體生成 /Create Entity File
using (var db = SugarDao.GetInstance()) { //能夠結合別名表，請看別名表的用法 //db.SetMappingTables(mappingTableList); db.ClassGenerating.CreateClassFiles(db, ("e:/TestModels"), "Models"); //批量設置別名表,能夠方便生成指定格式的實體對象 db.ClassGenerating.ForeachTables(db, tableName => { db.AddMappingTable(new KeyValue() { Key = "Rename_"+tableName, Value = tableName }); }); //生成的文件都Rename_開頭 db.ClassGenerating.CreateClassFiles(db, ("e:/TestModels"), "Models", null, className => { //生成文件以後的回調 }, tableName => { //生成文件以前的回調 }); //只生成student和school表的實體 db.ClassGenerating.CreateClassFilesByTableNames(db, "e:/TestModels2", "Models", new string[] { "student", "school" }); //根據表名生成class字符串 var str = db.ClassGenerating.TableNameToClass(db, "Student"); var dynamicToClassStr = db.ClassGenerating.DynamicToClass(new { id = 1 }, "dyName"); //根據SQL語句生成class字符串 var str2 = db.ClassGenerating.SqlToClass(db, "select top 1 * from Student", "student"); //改變值（lassTemplate.ItemTemplate=XXXX）能夠自定義格式 var tempItem = ClassTemplate.ItemTemplate;//例如能夠在生成的實體添加默認構造函數給指定的字段賦默認值或者公司信息等 var temp = ClassTemplate.Template; var temSummary = ClassTemplate.ClassFieldSummaryTemplate; //設置新格式模板 //主鍵Guid.New(), //CreateTime爲DateTime.Now //IsRemove=0 //UpdateTime爲DateTime.Now ClassTemplate.Template = "using System;\r\nusing System.Linq;\r\nusing System.Text;\r\n\r\nnamespace $namespace\r\n{\r\n public class $className\r\n {\r\n public $className() \r\n { \r\n this.CreateTime = DateTime.Now;\r\n this. = 0;\r\n this.UpdateTime=DateTime.Now;\r\n this.$primaryKeyName=Guid.NewGuid().ToString(\"N\").ToUpper();\r\n }\r\n $foreach\r\n }\r\n}\r\n"; //新格式的實體字符串 var str3 = db.ClassGenerating.TableNameToClass(db, "Student"); }
T4模版
詳細教程：
http://www.cnblogs.com/sunkaixuan/p/5751503.html
自定義生成實體的格式
例如給每一個實體 指定字段添加默認值
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using WebTest.Dao; using SqlSugar; namespace WebTest.Demos { public partial class CreateModelFile2 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { //自定義實體模板引擎模塊 ClassTemplate.Template = "using System;\r\nusing System.Linq;\r\nusing System.Text;\r\n\r\nnamespace $namespace\r\n{\r\n public class $className\r\n {\r\n public $className() \r\n { \r\n this.CreateTime = DateTime.Now;\r\n this.IsRemove = 0;\r\n this.UpdateTime=DateTime.Now;\r\n this.$primaryKeyName=Guid.NewGuid().ToString(\"N\").ToUpper();\r\n }\r\n $foreach\r\n }\r\n}\r\n"; using (var db = SugarDao.GetInstance()) { db.ClassGenerating.CreateClassFiles(db, "e:/TestModel", "Models"); //生成的Model帶構造函數而且賦了默認值 ，以下注釋 } } //public class InsertTest //{ // public InsertTest() // { // this.CreateTime = DateTime.Now; // this.IsRemove = 0; // this.UpdateTime = DateTime.Now; // this.id = Guid.NewGuid().ToString("N").ToUpper(); // } // /// <summary> // /// Desc:- // /// Default:- // /// Nullable:False // /// </summary> // public int id { get; set; } // /// <summary> // /// Desc:- // /// Default:- // /// Nullable:True // /// </summary> // public string v1 { get; set; } // /// <summary> // /// Desc:- // /// Default:- // /// Nullable:True // /// </summary> // public string v2 { get; set; } // /// <summary> // /// Desc:- // /// Default:- // /// Nullable:True // /// </summary> // public string v3 { get; set; } // /// <summary> // /// Desc:- // /// Default:- // /// Nullable:True // /// </summary> // public int? int1 { get; set; } // /// <summary> // /// Desc:- // /// Default:- // /// Nullable:True // /// </summary> // public DateTime? d1 { get; set; } // /// <summary> // /// Desc:- // /// Default:- // /// Nullable:True // /// </summary> // public string txt { get; set; } //} } }
別名表/Rename table name
SqlSugar走的是POCO路線，並不須要在Model裏面添加任何特性
/// <summary>
/// 使用別名表功能
/// </summary>
public partial class Rename : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
using (SqlSugarClient db = SugarFactory.GetInstance())
{
var list = db.Queryable<V_Student>().ToList(); //使用別名表
}
}
}
/// <summary>
/// 全局配置類
/// </summary>
public class SugarConfigs
{
//key類名 value表名
public static List<KeyValue> MpList = new List<KeyValue>(){
new KeyValue(){ Key="FormAttr", Value="Flow_FormAttr"},
new KeyValue(){ Key="Student3", Value="Student"},
new KeyValue(){ Key="V_Student", Value="Student"}
};
}
/// <summary>
/// SqlSugar實例工廠
/// </summary>
public class SugarFactory
{
//禁止實例化
private SugarFactory()
{
}
public static SqlSugarClient GetInstance()
{
string connection = System.Configuration.ConfigurationManager.ConnectionStrings[@"sqlConn"].ToString(); //這裏能夠動態根據cookies或session實現多庫切換
var db = new SqlSugarClient(connection);
db.SetMappingTables(SugarConfigs.MpList);//設置關聯表 (引用地址賦值，每次賦值都只是存儲一個內存地址)
return db;
}
}
枚舉支持
protected void Page_Load(object sender, EventArgs e) { using (SqlSugarClient db = SugarDao.GetInstance()) { var stuList= db.Queryable<Student>().ToList(); db.Insert<Student>(new Student() { sch_id = SchoolEnum.北大青鳥 }); db.Update<Student>(new Student() { sch_id = SchoolEnum.it清華, id = 11 }); var stuList2 = db.Queryable<Student>().Where(it => it.sch_id == SchoolEnum.全智).ToList(); } } public class Student { /// <summary> /// 說明:- /// 默認:- /// 可空:False /// </summary> public int id { get; set; } /// <summary> /// 說明:- /// 默認:- /// 可空:True /// </summary> public string name { get; set; } /// <summary> /// 說明:- /// 默認:- /// 可空:False /// </summary> public SchoolEnum sch_id { get; set; } /// <summary> /// 說明:- /// 默認:- /// 可空:True /// </summary> public string sex { get; set; } /// <summary> /// 說明:- /// 默認:- /// 可空:False /// </summary> public bool isOk { get; set; } } public enum SchoolEnum { 北大青鳥 = 1, it清華 = 2, 全智=3 }
排除非數據庫列 SqlSugar2.7新功能
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using SqlSugar; using WebTest.Dao; using WebTest.TestLib; namespace WebTest.Demos { public partial class IgnoreErrorColumns : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { using (SqlSugarClient db = SugarDao.GetInstance()) { //設置別名表具體例子看rename.aspx，不是該例子的重點 db.SetMappingTables(new List<KeyValue>() { new KeyValue() { Key = "MyStudent", Value = "Student" }, });
//重點來了 //數據庫並無appendField和appendField2二個字段，設置該屬性後將插入能夠正常使用 db.IsIgnoreErrorColumns = true;//自動排除非數據庫列 update也同樣 db.Insert<MyStudent>(new MyStudent() { name = "張三" }); //將實體MyStudent插入Student表 } } } /// <summary> /// 繼承了學生表 /// </summary> public class MyStudent : Student { /// <summary> /// 這兩個字段Student表並不存在 /// </summary> public string appendField { get; set; } public string appendField2 { get; set; } } }
智能提示配置
http://www.cnblogs.com/sunkaixuan/p/5851425.html
多庫並行計算功能
using (CloudClient db = CloudDao.GetInstance()) { db.PageMaxHandleNumber = 1500; using (CommittableTransaction trans = new CommittableTransaction())//啓用分佈式事務 { db.Tran = trans; /*** 增、刪、改 ***/ //根據配置的百分比，隨機插入到某個節點庫 var s = new student() { createTime = DateTime.Now, id = Guid.NewGuid(), name = Guid.NewGuid() + "" }; //db.Insert<student>(s, false/*false表示不是自增列*/); //數據庫設計主鍵爲GUID爲佳多庫計算不會衝突 ////併發請求全部節點找出這條數據更新 //s.name = "改11"; //db.Update<student>(s, it => it.id == s.id);//根據表達示更新 //db.Update<student, Guid>(s, s.id);//根據主鍵更新 //db.Update<student, Guid>(s, new Guid[] { s.id });//根據主鍵數組更新 ////併發請求全部節點找出這條數據刪除 //db.Delete<student>(it => it.id == s.id); trans.Commit(); } db.TranDispose(); /*** 使用Taskable實現雲計算 ***/ //多線程請求全部數據庫節點，獲取彙總結果 var taskDataTable = db.Taskable<DataTable>("SELECT max(NUM) FROM STUDENT").Tasks; foreach (var dr in taskDataTable)//遍歷全部節點數據 { var dt = dr.Result.DataTable;//每一個節點的數據 類型爲DataTable var connectionName = dr.Result.ConnectionString; } //多線程請求全部數據庫節點，獲取彙總結果 var taskInt = db.Taskable<int>("SELECT max(NUM) FROM STUDENT").Tasks; foreach (var dr in taskInt)//遍歷全部節點數據 { var dt = dr.Result.Value;//獲取單個值 var connectionName = dr.Result.ConnectionString; } //多線程請求全部數據庫節點，獲取彙總結果 var taskEntity = db.Taskable<student>("SELECT top 100 * FROM STUDENT").Tasks; foreach (var dr in taskEntity)//遍歷全部節點數據 { var dt = dr.Result.Entities;//獲取實體集合 var connectionName = dr.Result.ConnectionString; } // //Taskable實現分組查詢 // var groupList = db.Taskable<DataTable>("SELECT name,COUNT(*) AS [count],AVG(num) as num FROM STUDENT WHERE ID IS NOT NULL GROUP BY NAME ") // .Tasks // .SelectMany(it => it.Result.DataTable.AsEnumerable()) // .Select(dr => new { num = Convert.ToInt32(dr["NUM"]), name = dr["NAME"].ToString(), count = Convert.ToInt32(dr["COUNT"]) }) // .GroupBy(dr => dr.name).Select(dt => new { name = dt.First().name, count = dt.Sum(dtItem => dtItem.count), num = dt.Sum(dtItem => dtItem.num) / dt.Sum(dtItem => dtItem.count) }).ToList(); // //輸出結果 // foreach (var it in groupList) // { // var num = it.num; // var name = it.name; // var count = it.count; // } // //簡化 // var groupList2 = db.Taskable<DataTable>("SELECT NAME,COUNT(*) AS [COUNT],AVG(NUM) as NUM FROM STUDENT WHERE ID IS NOT NULL GROUP BY NAME ") //.MergeTable()//將結果集合併到一個集合 //.Select(dr => new { num = Convert.ToInt32(dr["NUM"]), name = dr["NAME"].ToString(), count = Convert.ToInt32(dr["COUNT"]) }) //.GroupBy(dr => dr.name).Select(dt => new { name = dt.First().name, count = dt.Sum(dtItem => dtItem.count), num = dt.Sum(dtItem => dtItem.num) / dt.Sum(dtItem => dtItem.count) }).ToList(); // //再簡化 // List<V_Student> groupList3 = db.Taskable<V_Student>("SELECT name,COUNT(*) AS [count],AVG(num) as num FROM STUDENT WHERE ID IS NOT NULL GROUP BY NAME ") //.MergeEntities()//將結果集合併到一個集合 //.GroupBy(dr => dr.name).Select(dt => new V_Student { name = dt.First().name, count = dt.Sum(dtItem => dtItem.count), num = dt.Sum(dtItem => dtItem.num) / dt.Sum(dtItem => dtItem.count) }).ToList(); //更多簡化函數 int maxValue = db.Taskable<int>("SELECT max(NUM) FROM STUDENT").Max();//求出全部節點的最大值 int minValue = db.Taskable<int>("SELECT min(NUM) FROM STUDENT").Min();//求出全部節點的最小值 var dataCount = db.Taskable<int>("SELECT count(1) FROM STUDENT").Count();//求出全部節點數據 // var avg = db.TaskableWithCount<int>("SELECT avg(num)", " FROM STUDENT").Avg(); var all = db.Taskable<student>("select * from student where Contains(name,@name)"/*使用contains須要建全文索引*/, new { name = "張三" }).ToList();//獲取全部節點name爲張三的數據,轉爲list var dnSingle = DateTime.Now; var data = db.Taskable<student>("select * from student where id=@id", new { id = id }).ToSingle();//從全部節點中查詢一條記錄 var timeSingle = (DateTime.Now - dnSingle).TotalSeconds; var dn = DateTime.Now; //單列排序 // var list = db.TaskableWithPage<student>("id", "select * from student "/*使用contains須要建全文索引*/, 2160, 25, ref pageCount, "num", OrderByType.desc, new { name = "\"*李*\"" }); var time = (DateTime.Now - dn).TotalSeconds; //多組排序 order by num,time var dn2 = DateTime.Now; var listMultipleOrderBy = db.TaskableWithPage<student>("id", "select * from student "/*使用contains須要建全文索引*/, 5000, 25, ref pageCount, new List<OrderByDictionary>() { new OrderByDictionary(){ OrderByField="num", OrderByType=OrderByType.asc}, // new OrderByDictionary(){ OrderByField="createTime", OrderByType=OrderByType.desc}, // new OrderByDictionary(){ OrderByField="createTime", OrderByType=OrderByType.asc} }, new { name = "\"*小*\"" }); var time2 = (DateTime.Now - dn2).TotalSeconds; }
/// <summary> /// 測試類 /// </summary> public class student { public Guid id { get; set; } public string name { get; set; } public DateTime createTime { get; set; } public int num { get; set; } } /// <summary> /// 獲取數據庫鏈接對象 /// </summary> public class CloudDao { private CloudDao() { } public static CloudClient GetInstance() { return new CloudClient(new List<CloudConnectionConfig>() { new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["c1"].ToString(), Rate=1}, new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["c2"].ToString(), Rate=1}, new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["c3"].ToString(), Rate=1}, new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["c4"].ToString(), Rate=1}, new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["c5"].ToString(), Rate=1}, new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["c6"].ToString(), Rate=1}, new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["c7"].ToString(), Rate=1}, new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["c8"].ToString(), Rate=1}, new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["c9"].ToString(), Rate=1}, new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["c10"].ToString(), Rate=1}, new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["c15"].ToString(), Rate=1}, new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["c16"].ToString(), Rate=1}, new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["c17"].ToString(), Rate=1}, //new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["cy1"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["cy2"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["cy3"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["zq1"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["zq2"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["zq3"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["qp1"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["qp2"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["qp3"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["wy1"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["wy2"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["wy3"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["wwf1"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["wwf2"].ToString(), Rate=1}, // new CloudConnectionConfig(){ ConnectionString=ConfigurationManager.ConnectionStrings["wwf3"].ToString(), Rate=1}, }); } }
三、性能/Performance
GITHUB下載地址：
MSSQL .NET 4.0+
https://github.com/sunkaixuan/SqlSugar
MSSQL .NET Core 版本
https://github.com/sunkaixuan/ASP_NET_CORE_ORM_SqlSugar
Sqlite .net4.0+
https://github.com/sunkaixuan/SqliteSugar
MYSQL .NET 4.0+
http://www.cnblogs.com/sunkaixuan/p/5747259.html
ORACLE.NET 4.0+
https://github.com/sunkaixuan/OracleSugar
ORACLE CORE ,MYSQL CORE,SQLITE CORE 待開發
技術討論羣： 225982985
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