更新前SQL检查是否存在

发布于 2024-11-13 06:58:46 字数 1122 浏览 1 评论 0原文

大家好，我想看一个示例，如何在更新完成之前检查数据库中是否存在 pappssn。如果是则引发错误记录存在。我的前端是 VB，但是如果可能的话，我想在我的存储过程中的 SQL 中处理这个问题。有什么想法吗？

ALTER Procedure [dbo].[usp_insertmemapp](
@pappfname nvarchar(50),
@pappmname nvarchar(50),
@papplname nvarchar(50),
@pappwedding nvarchar(50),
@pappstateresidence nvarchar(50),
@pappstreet nvarchar(50),
@pappcity nvarchar(50),
@pappstate char(2),
@pappzip char(6), 
@papphomephone nvarchar (13), 
@pappfax nvarchar (13), 
@pappaltstreet nvarchar(13), 
@pappaltcity nvarchar(25),
@pappaltstate char(2),
@pappaltzip char(6), 
@pappalthomephone nvarchar (13),
@pappaltfax nvarchar(13), 
@pappssn char(11), 
@pappdob nvarchar(50), 
@pappcell nvarchar(13), 
@pappemail nvarchar(50),   


BEGIN TRY
BEGIN TRANSACTION

INSERT INTO [a_abacus].[dbo].[primaryapplicant]
VALUES(
@pappfname,@pappmname,@papplname,@pappwedding,@pappstateresidence,@pappstreet,@pappcity,@pappstate,
@pappzip,@papphomephone,@pappfax,@pappaltstreet,@pappaltcity,@pappaltstate,
@pappaltzip,@pappalthomephone,@pappaltfax,@pappssn,@pappdob,@pappcell,@pappemail,


Commit Transaction
END TRY
BEGIN CATCH
ROLLBACK
END CATCH

原文

Hello All I would like to see an example how to check if pappssn exsist in database before the update is complete. If so to raise an error record exsist. My front end is VB however i would like to handle this within SQL in my stored procedure if possible. Any Ideas?

ALTER Procedure [dbo].[usp_insertmemapp](
@pappfname nvarchar(50),
@pappmname nvarchar(50),
@papplname nvarchar(50),
@pappwedding nvarchar(50),
@pappstateresidence nvarchar(50),
@pappstreet nvarchar(50),
@pappcity nvarchar(50),
@pappstate char(2),
@pappzip char(6), 
@papphomephone nvarchar (13), 
@pappfax nvarchar (13), 
@pappaltstreet nvarchar(13), 
@pappaltcity nvarchar(25),
@pappaltstate char(2),
@pappaltzip char(6), 
@pappalthomephone nvarchar (13),
@pappaltfax nvarchar(13), 
@pappssn char(11), 
@pappdob nvarchar(50), 
@pappcell nvarchar(13), 
@pappemail nvarchar(50),   


BEGIN TRY
BEGIN TRANSACTION

INSERT INTO [a_abacus].[dbo].[primaryapplicant]
VALUES(
@pappfname,@pappmname,@papplname,@pappwedding,@pappstateresidence,@pappstreet,@pappcity,@pappstate,
@pappzip,@papphomephone,@pappfax,@pappaltstreet,@pappaltcity,@pappaltstate,
@pappaltzip,@pappalthomephone,@pappaltfax,@pappssn,@pappdob,@pappcell,@pappemail,


Commit Transaction
END TRY
BEGIN CATCH
ROLLBACK
END CATCH

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逆流 2024-11-20 06:58:46

ALTER Procedure [dbo].[usp_insertmemapp](
@pappfname nvarchar(50),
@pappmname nvarchar(50),
@papplname nvarchar(50),
@pappwedding nvarchar(50),
@pappstateresidence nvarchar(50),
@pappstreet nvarchar(50),
@pappcity nvarchar(50),
@pappstate char(2),
@pappzip char(6), 
@papphomephone nvarchar (13), 
@pappfax nvarchar (13), 
@pappaltstreet nvarchar(13), 
@pappaltcity nvarchar(25),
@pappaltstate char(2),
@pappaltzip char(6), 
@pappalthomephone nvarchar (13),
@pappaltfax nvarchar(13), 
@pappssn char(11), 
@pappdob nvarchar(50), 
@pappcell nvarchar(13), 
@pappemail nvarchar(50),   


BEGIN TRY
BEGIN TRANSACTION

-- this is the important change...
IF NOT EXISTS (SELECT pappssn FROM a_abacus WHERE pappssn = @pappssn)

    INSERT INTO [a_abacus].[dbo].[primaryapplicant]
    VALUES(
    @pappfname,@pappmname,@papplname,@pappwedding,@pappstateresidence,@pappstreet,@pappcity,@pappstate,
    @pappzip,@papphomephone,@pappfax,@pappaltstreet,@pappaltcity,@pappaltstate,
    @pappaltzip,@pappalthomephone,@pappaltfax,@pappssn,@pappdob,@pappcell,@pappemail,

Commit Transaction
END TRY
BEGIN CATCH
ROLLBACK
END CATCH

ALTER Procedure [dbo].[usp_insertmemapp](
@pappfname nvarchar(50),
@pappmname nvarchar(50),
@papplname nvarchar(50),
@pappwedding nvarchar(50),
@pappstateresidence nvarchar(50),
@pappstreet nvarchar(50),
@pappcity nvarchar(50),
@pappstate char(2),
@pappzip char(6), 
@papphomephone nvarchar (13), 
@pappfax nvarchar (13), 
@pappaltstreet nvarchar(13), 
@pappaltcity nvarchar(25),
@pappaltstate char(2),
@pappaltzip char(6), 
@pappalthomephone nvarchar (13),
@pappaltfax nvarchar(13), 
@pappssn char(11), 
@pappdob nvarchar(50), 
@pappcell nvarchar(13), 
@pappemail nvarchar(50),   


BEGIN TRY
BEGIN TRANSACTION

-- this is the important change...
IF NOT EXISTS (SELECT pappssn FROM a_abacus WHERE pappssn = @pappssn)

    INSERT INTO [a_abacus].[dbo].[primaryapplicant]
    VALUES(
    @pappfname,@pappmname,@papplname,@pappwedding,@pappstateresidence,@pappstreet,@pappcity,@pappstate,
    @pappzip,@papphomephone,@pappfax,@pappaltstreet,@pappaltcity,@pappaltstate,
    @pappaltzip,@pappalthomephone,@pappaltfax,@pappssn,@pappdob,@pappcell,@pappemail,

Commit Transaction
END TRY
BEGIN CATCH
ROLLBACK
END CATCH

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