mongo學習筆記

mongo學習筆記

一 安裝測試配置

1 下載安裝
    從mongodb官網下載對應的壓縮包,解壓便可。
    copy命令到/usr/local/bin目錄 (cp mongod /usr/local/bin；cp mongo /usr/local/bin)
2 建立配置文件
     參考官方文檔https://docs.mongodb.com/manual/reference/configuration-options/#configuration-file

經常使用配置：

systemLog:
       destination: file
       path: "/var/log/mongodb/mongod.log"
       logAppend: true
    storage:
       dbPath: "/var/mongoData"
       journal:
          enabled: true
    processManagement:
       fork: true
    net:
       bindIp: 127.0.0.1
       port: 27017
    setParameter:
       enableLocalhostAuthBypass: false
3 啓動服務
    mongod --config=/etc/mongodb/mongodb.conf
4 打開客戶端
    mongo
5 關閉mongo
    use admin
    db.shutdownServer()

二 CURD的操做

show dbs 顯示全部數據庫
use user 使用user數據庫(不存在就會自動建立,插入一些值後纔會顯示)
db 查看當前使用的數據庫
show collections 顯示該庫下全部集合
db.userinfo.insert({"a":1,"b":1,"fr":[1,2,3,4]}) 在user數據庫userinfo集合中插入數據
db.dropDatabase() 刪除數據庫
db.userinfo.remove({}) 清空集合
db.userinfo.drop() 刪除集合

SELECT a,b FROM users   <==>   db.users.find({}, {"a" : 1, "b" : 1});
SELECT * FROM users WHERE age=33    <==>   db.users.find({"age" : 33});
SELECT a,b FROM users WHERE age=33  <==>   db.users.find({"age" : 33}, {"a" : 1, "b" : 1});
SELECT a,b FROM users WHERE age=33 ORDER BY name    <==>   db.users.find({"age" : 33}, {"a" : 1, "b" : 1}).sort({"name" : 1});
SELECT * FROM users WHERE age>33    <==>   db.users.find({"age" : {'$gt' : 33}});
SELECT * FROM users WHERE age<33    <==>   db.users.find({"age" : {'$lt' : 33}});
SELECT * FROM users WHERE name LIKE "%Joe%" <==>   db.users.find({"name" : /Joe/});
SELECT * FROM users WHERE name LIKE "Joe%"  <==>   db.users.find({"name" : /^Joe/});
SELECT * FROM users WHERE age>33 AND age<=40    <==>   db.users.find({"age" : {'$gt' : 33,'$lte' : 40}});
SELECT * FROM users ORDER BY name DESC  <==>   db.users.find().sort({"name" : -1});
CREATE INDEX myindexname ON users(name) <==>   db.users.ensureIndex({"name" : 1});
CREATE INDEX myindexname ON users(name,ts DESC) <==>   db.users.ensureIndex({"name" : 1, "ts" : -1});
SELECT * FROM users WHERE a=1 and b='q' <==>   db.users.find({"a" : 1, "b" : "q"});
SELECT * FROM users LIMIT 10 SKIP 20    <==>   db.users.find().limit(10).skip(20);
SELECT * FROM users WHERE a=1 or b=2    <==>   db.users.find({'$or' : {"a" : 1, "b" : 2}});
SELECT * FROM users LIMIT 1 <==>   db.users.find().limit(1);
EXPLAIN SELECT * FROM users WHERE z=3   <==>   db.users.find({"z" : 3}).explain()
SELECT DISTINCT last_name FROM users    db.runCommand({"distinct" : "users", "key" : "last_name"});
SELECT COUNT(*y) FROM users <==>   db.users.count();
SELECT COUNT(*y) FROM users where AGE > 30  <==>   db.users.find({"age" : {'$gt' : 30}}).count();
SELECT COUNT(AGE) from users    <==>   db.users.find({"age" : {'$exists' : true}}).count();
UPDATE users SET a=1 WHERE b='q'    <==>   db.users.update({"b" : "q"}, {'$set' : {"a" : 1}});
UPDATE users SET a=a+2 WHERE b='q'  <==>   db.users.update({"b" : "q"}, {'$inc' : {"a" : 2}});
DELETE FROM users WHERE z="abc" <==>   db.users.remove({"z" : "abc"});

php 操做mongo記錄，請參考
http://blog.csdn.net/qq135554...
https://my.oschina.net/u/8121...