T-SQL存储过程中try和catch以及错误处理的用法例子

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go
-- =============================================
-- Author:		<Author,,Name>
-- Create date: <Create Date,,>
-- Description:	<Description,,>
-- =============================================
ALTER PROCEDURE [dbo].[ImportPlatformParam]
-- Add the parameters for the stored procedure here
@mOrderID_Source nvarchar(64),
@mProjVersion_Source nvarchar(2),
@mOrderID_Target nvarchar(64),
@mProjVersion_Target nvarchar(2)
AS
DECLARE @SQLStr nvarchar(4000), @count int
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;

-- Insert statements for procedure here
SET XACT_ABORT ON;

BEGIN TRY
BEGIN TRAN
--删除目标平台的平台参数
DELETE FROM	UDSGKS_ProjPlatformParamMap
WHERE		OrderID = @mOrderID_Target AND
ProjVersion = @mProjVersion_Target

--删除目标平台的平台非标点
DELETE FROM	UDSGKS_ProjNSList
WHERE		OrderID = @mOrderID_Target AND
ProjVersion = @mProjVersion_Target

--导入源平台的平台参数到目标平台
INSERT INTO	UDSGKS_ProjPlatformParamMap
(	OrderID, ProjVersion,
PlatformParamName, PlatformParamValue,
PlatformParamDesc, PlatformParamType, FileName)
SELECT	@mOrderID_Target AS OrderID,
@mProjVersion_Target AS ProjVersion,
PlatformParamName, PlatformParamValue,
PlatformParamDesc, PlatformParamType, FileName
FROM	UDSGKS_ProjPlatformParamMap
WHERE	OrderID = @mOrderID_Source AND
ProjVersion = @mProjVersion_Source

--导入源平台的非标难度时间到目标平台
DELETE FROM	UDSGKS_ProjDifficulty
WHERE		OrderID = @mOrderID_Target AND
ProjVersion = @mProjVersion_Target

INSERT INTO	UDSGKS_ProjDifficulty
SELECT		@mOrderID_Target AS OrderID, @mProjVersion_Target AS ProjVersion,
PDPeriod, PRPeriod, MDPeriod, MRPeriod, LDPeriod, LRPeriod
FROM		UDSGKS_ProjDifficulty
WHERE		OrderID = @mOrderID_Source AND
ProjVersion = @mProjVersion_Source

--导入源平台的平台非标点到目标平台
INSERT INTO	UDSGKS_ProjNSList
(	OrderID, ProjVersion,
NSID, NSFuncOption, NSRange, SchemaDesc,
ModelID, Manner, MaterialDesc, PartID, PartName,
PartSchema, MaterialID, DrawID, Remark, Flag, Hours)
SELECT	@mOrderID_Target AS OrderID,
@mProjVersion_Target AS ProjVersion,
NSID, NSFuncOption, NSRange, SchemaDesc, ModelID,
Manner, MaterialDesc, PartID, PartName, PartSchema,
MaterialID, DrawID, Remark, Flag, Hours
FROM	UDSGKS_ProjNSList
WHERE	OrderID = @mOrderID_Source AND
ProjVersion = @mProjVersion_Source

--导入源平台的附言和备注到目标平台
UPDATE	UDSGKS_PlatformTask
SET		Postscripts = T1.Postscripts,
Remark = T1.Remark
FROM	(	SELECT Postscripts,Remark
FROM	UDSGKS_PlatformTask
WHERE	OrderID = @mOrderID_Source AND
ProjVersion = @mProjVersion_Source) AS T1
WHERE	OrderID = @mOrderID_Target AND
ProjVersion = @mProjVersion_Target

COMMIT TRAN
END TRY
BEGIN CATCH
ROLLBACK TRAN
DECLARE @ErrMsg NVARCHAR(4000), @ErrSeverity INT
SELECT @ErrMsg = ERROR_MESSAGE(),
@ErrSeverity = ERROR_SEVERITY()
RAISERROR (@ErrMsg, @ErrSeverity, 1)
END CATCH
END