sqlserver 存儲過程 try catch TRANSACTION (轉)

時間 2019-11-11

標籤 sqlserver 存儲過程 try catch transaction 欄目 SqlServer 简体版

原文原文鏈接

原文：http://www.cnblogs.com/yun_shuai/archive/2010/09/20/1831546.htmlhtml

/*

1. 輕微錯誤（嚴重性級別爲0-10）：默認狀況下不會給客戶程序發送錯誤消息，繼續工做。也就是說它沒法被CATCH到

2. 中等錯誤（嚴重性級別爲11-19）：可以被CATCH到（無論是在T-SQL裏面仍是在客戶程序裏面）

3. 嚴重錯誤（嚴重性級別爲20-25）：SQL Server將強制把鏈接關掉。很顯然這也不可能被CATCH到

【重點提示！！】

因爲業務的複雜或者系統性能問題，導致數據庫sql語句執行較久。

致使客戶端網頁已經鏈接超時（如設置爲30秒）

此時數據庫批處理語句未執行完成，客戶session斷開，至關於中斷操做，相似【案例1】的中斷。

事務是沒有提交或回滾的，資源仍在佔用，致使發生堵塞或死鎖！~

【解決方法】：

在批處理語句前加上 SET XACT_ABORT ON
當客戶端中斷的時候，未執行完成則回滾操做，及時釋放資源。 sql

--查看 XACT_ABORT 是否打開
SELECT (CASE WHEN (16384 & @@OPTIONS) = 16384 THEN 'ON' ELSE 'OFF' END) AS XACT_ABORT; 數據庫

*/ session

CREATE PROCEDURE YourProcedure
AS
BEGIN
SET NOCOUNT ON;ide

    BEGIN TRY---------------------開始捕捉異常
       BEIN TRAN------------------開始事務
        UPDATE A SET A.names = B.names FROM 表1 AS A INNER JOIN 表2 AS B ON A.id = B.id函數

UPDATE A SET A.names = B.names FROM 表1 AS A INNER JOIN 表2 AS B ON A.TEST = B.TEST性能

    COMMIT TRAN -------提交事務
    END TRY-----------結束捕捉異常
    BEGIN CATCH------------有異常被捕獲
        IF @@TRANCOUNT > 0---------------判斷有沒有事務
        BEGIN
            ROLLBACK TRAN----------回滾事務
        END
        EXEC YourLogErrorProcedure-----------執行存儲過程將錯誤信息記錄在表當中
    END CATCH--------結束異常處理
ENDspa

---------------------------------------------記錄操做錯信息的存儲過程--------------------------------------------.net

CREATE PROCEDURE YourLogErrorProcedure
    @ErrorLogID [int] = 0 OUTPUT -- contains the ErrorLogID of the row inserted
AS                               -- by uspLogError in the ErrorLog table
BEGIN
    SET NOCOUNT ON;orm

    -- Output parameter value of 0 indicates that error
    -- information was not logged
    SET @ErrorLogID = 0;

    BEGIN TRY
        -- Return if there is no error information to log
        IF ERROR_NUMBER() IS NULL
            RETURN;

        -- Return if inside an uncommittable transaction.
        -- Data insertion/modification is not allowed when
        -- a transaction is in an uncommittable state.
        IF XACT_STATE() = -1
        BEGIN
            PRINT 'Cannot log error since the current transaction is in an uncommittable state. '
                + 'Rollback the transaction before executing uspLogError in order to successfully log error information.';
            RETURN;
        END

        INSERT [dbo].[OperateErrorLog]
            (
            [OperateName],
            [ErrorNumber],
            [ErrorSeverity],
            [ErrorState],
            [ErrorProcedure],
            [ErrorLine],
            [ErrorMessage]
            )
        VALUES
            (
            CONVERT(sysname, CURRENT_USER),
            ERROR_NUMBER(),
            ERROR_SEVERITY(),
            ERROR_STATE(),
            ERROR_PROCEDURE(),
            ERROR_LINE(),
            ERROR_MESSAGE()
            );
        SET @ErrorLogID = @@IDENTITY;
    END TRY
    BEGIN CATCH
        PRINT 'An error occurred in stored procedure uspLogError: ';
        EXECUTE YourPrintErrorProcedure;-----------------打印錯誤信息的存儲過程
        RETURN -1;
    END CATCH
END;

CREATE PROCEDURE YourPrintErrorProcedure
AS
BEGIN
SET NOCOUNT ON;

    -- Print error information.
    PRINT 'Error ' + CONVERT(varchar(50), ERROR_NUMBER()) +
          ', Severity ' + CONVERT(varchar(5), ERROR_SEVERITY()) +
          ', State ' + CONVERT(varchar(5), ERROR_STATE()) +
          ', Procedure ' + ISNULL(ERROR_PROCEDURE(), '-') +
          ', Line ' + CONVERT(varchar(5), ERROR_LINE());
    PRINT ERROR_MESSAGE();
END;

CREATE TABLE [dbo].[ErrorLog](
    [ErrorLogID] [int] IDENTITY(1,1) NOT NULL,
    [ErrorTime] [datetime] NOT NULL CONSTRAINT [DF_ErrorLog_ErrorTime] DEFAULT (getdate()),
    [UserName] [sysname] COLLATE Chinese_PRC_CI_AS NOT NULL,
    [ErrorNumber] [int] NOT NULL,
    [ErrorSeverity] [int] NULL,
    [ErrorState] [int] NULL,
    [ErrorProcedure] [nvarchar](126) COLLATE Chinese_PRC_CI_AS NULL,
    [ErrorLine] [int] NULL,
    [ErrorMessage] [nvarchar](4000) COLLATE Chinese_PRC_CI_AS NOT NULL,
CONSTRAINT [PK_ErrorLog_ErrorLogID] PRIMARY KEY CLUSTERED
(
    [ErrorLogID] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]

本文來自CSDN博客，轉載請標明出處：http://blog.csdn.net/WeiZhang_son_Ding/archive/2010/02/05/5291732.aspx

http://www.cnblogs.com/BpLoveGcy/archive/2010/03/22/1691407.html

ALTER PROC usp_AccountTransaction

@AccountNum INT,
@Amount DECIMAL
AS
BEGIN
BEGIN TRY --Start the Try Block..
BEGIN TRANSACTION -- Start the transaction..
UPDATE MyChecking SET Amount = Amount - @Amount
WHERE AccountNum = @AccountNum
UPDATE MySavings SET Amount = Amount + @Amount
WHERE AccountNum = @AccountNum
COMMIT TRAN -- Transaction Success!
END TRY
BEGIN CATCH
IF @@TRANCOUNT > 0
ROLLBACK TRAN --RollBack in case of Error
-- you can Raise ERROR with RAISEERROR() Statement including the details of the exception
--RAISERROR(ERROR_MESSAGE(), ERROR_SEVERITY(), 1)

            DECLARE @ErrorMessage NVARCHAR(4000);
   　　　　DECLARE @ErrorSeverity INT;
  　　 DECLARE @ErrorState INT;

   　　SELECT
    　　@ErrorMessage = ERROR_MESSAGE(),
    　　@ErrorSeverity = ERROR_SEVERITY(),
    　　@ErrorState = ERROR_STATE();

   -- Use RAISERROR inside the CATCH block to return error
   -- information about the original error that caused
   -- execution to jump to the CATCH block.
   　　RAISERROR (@ErrorMessage, -- Message text.
        　　@ErrorSeverity, -- Severity.
        　　@ErrorState -- State.
       　　 );

END CATCH
END
GO

BEGIN TRY
SELECT GETDATE()
SELECT 1/0--Evergreen divide by zero example!
END TRY
BEGIN CATCH
SELECT 'There was an error! ' + ERROR_MESSAGE()
RETURN
END CATCH;

2.得到錯誤信息的函數表:

下面系統函數在CATCH塊有效.能夠用來獲得更多的錯誤信息:

函數	描述
ERROR_NUMBER()	返回致使運行 CATCH 塊的錯誤消息的錯誤號。
ERROR_SEVERITY()	返回致使 CATCH 塊運行的錯誤消息的嚴重級別
ERROR_STATE()	返回致使 CATCH 塊運行的錯誤消息的狀態號
ERROR_PROCEDURE()	返回出現錯誤的存儲過程名稱
ERROR_LINE()	返回發生錯誤的行號
ERROR_MESSAGE()	返回致使 CATCH 塊運行的錯誤消息的完整文本