Question

我有一个存储过程，它返回一个结果集（一个select语句）和一个输出参数说@IsError。仅当@IsError设置为1时，才返回ResultSet。

现在我从另一个过程调用此过程，并且只有在@IsError为1时才想从此过程中插入数据返回。

INSERT INTO #Order_Error(col1, col2, col3)
EXEC myStoredProc @param1, @param2, @IsError output

我想检查数据是否只应插入#Order_Error，如果输出参数，@IsError为1。

这里的参考是myStoredProc定义。

CREATE PROC myStoreProc
(   @param1 int,
    @param2 varchar(50),
    @IsError bit output
)
AS 
BEGIN
    BEGIN TRY
        -- My T-SQL operations like insert or update to the table. Nothing returns from this block i.e. No SELECT statement.
    END TRY

    BEGIN CATCH
        SELECT ERROR_NUMBER() AS ErrorNumber, ERROR_SEVERITY() AS ErrorSeverity, ERROR_STATE() AS ErrorState, ERROR_PROCEDURE() AS ErrorProcedure, ERROR_LINE() AS ErrorLine, ERROR_MESSAGE() AS ErrorMessage

    SET @IsError = 1
    END CATCH
END

我不知道该怎么做。任何帮助将是欣赏。感谢

Answer 1

你无法做到这一点。但是你可以使用staging表，如：

CREATE PROCEDURE spTest
@IsError BIT OUTPUT
AS

SET @IsError = 1
SELECT 1 AS A, 2 AS B
GO


DECLARE @IsError BIT

CREATE TABLE #Final(A INT, B INT)
CREATE TABLE #Staging(A INT, B INT)

INSERT INTO #Staging
EXEC spTest @IsError OUTPUT


IF @IsError = 1
BEGIN
    INSERT INTO #Final
    SELECT * FROM #Staging
END


SELECT * FROM #Final


DROP TABLE #Final
DROP TABLE #Staging
GO


ALTER PROCEDURE spTest
@IsError BIT OUTPUT
AS

SET @IsError = 0
SELECT 1 AS A, 2 AS B
GO


DECLARE @IsError BIT

CREATE TABLE #Final(A INT, B INT)
CREATE TABLE #Staging(A INT, B INT)

INSERT INTO #Staging
EXEC spTest @IsError OUTPUT


IF @IsError = 1
BEGIN
    INSERT INTO #Final
    SELECT * FROM #Staging
END


SELECT * FROM #Final


DROP TABLE #Final
DROP TABLE #Staging
GO

输出1：

A   B
1   2

输出2：

A   B

另一种方法是在第二个存储过程中使用临时表，因为它将看到从外部创建的临时表：

如果在一个存储过程中创建临时表，例如，称之为Proc1-所有其他存储的临时表都是可见的从Proc1调用的程序。但是，那个临时表不是任何调用Proc1的程序都可以看到。

CREATE PROCEDURE spTest
@IsError BIT OUTPUT
AS

SET @IsError = 1

INSERT INTO #Final
SELECT 1 AS A, 2 AS B
GO


DECLARE @IsError BIT

CREATE TABLE #Final(A INT, B INT)

EXEC spTest @IsError OUTPUT


SELECT * FROM #Final

Answer 2

更新存储过程中的CATCH语句以包含INSERT语句：

CREATE PROC myStoreProc
(   @param1 int,
    @param2 varchar(50),
    @IsError bit output
)
AS 
BEGIN
    BEGIN TRY
        -- My T-SQL operations like insert or update to the table. Nothing returns from this block i.e. No SELECT statement.
    END TRY

    BEGIN CATCH
        SELECT ERROR_NUMBER() AS ErrorNumber, ERROR_SEVERITY() AS ErrorSeverity, ERROR_STATE() AS ErrorState, ERROR_PROCEDURE() AS ErrorProcedure, ERROR_LINE() AS ErrorLine, ERROR_MESSAGE() AS ErrorMessage

    SET @IsError = 1
    IF (@IsError = 1)
    BEGIN
           <INSERT statement for #Order_Error>
    END
    END CATCH
END

根据输出参数值从存储过程结果集执行插入查询

2 个答案: