基于查询成功的SQL Server存储过程返回值

Question

In SQL Server 2014, I have created a simple stored procedure which does a bulk insert; what I'm struggling with is capturing if the bulk insert succeed or failed and returning 0 or 1 respectively.

The stored procedure code is:

ALTER PROCEDURE [dbo].[BulkInsert] 
    @file_name nvarchar(100)
AS
BEGIN
    SET NOCOUNT ON;

    DECLARE @bulk_insert NVARCHAR(2000);

    SET @bulk_insert  = 
    N'BULK INSERT log_door_access FROM ''' +
    @file_name +
    N''' WITH (FIELDTERMINATOR = ''\t'', ROWTERMINATOR = ''0x0A'');';

    EXEC sp_executesql @bulk_insert;
END

I'm trying to capture the EXEC result and return a 1 if all went well and 0 if an error occurred.

Answer 1

something like

ALTER PROCEDURE [dbo].[BulkInsert] 
@file_name nvarchar(100)
AS
BEGIN
    SET NOCOUNT ON;

    DECLARE @bulk_insert NVARCHAR(2000);

    SET @bulk_insert  = 
    N'BULK INSERT log_door_access FROM ''' +
    @file_name +
    N''' WITH (FIELDTERMINATOR = ''\t'', ROWTERMINATOR = ''0x0A'');';

    declare @r int
    EXEC @r = sp_executesql @bulk_insert;

    select @r
END

should do, or use an output parameter for sp_executesql, or a try catch block.

Answer 2

可以使用TRY...CATCH '为Transact-SQL实施错误处理，类似于Microsoft Visual C＃中的异常处理...'。