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SQL SERVER先判断视图是否存在然后再创建视图的语句_MsSql_

2023-05-26 654人已围观

简介 SQL SERVER先判断视图是否存在然后再创建视图的语句_MsSql_

如果我们的语句为:

 IF NOT EXISTS(SELECT 1 FROM sys.views WHERE name='Report_IndividualTicket') BEGIN create view Report_IndividualTicket as SELECT Ticket.TicketNumber, Ticket.TicketID, GisProcess.StageName, Content.DtReceived, Content.ContentText FROM (GisProcess INNER JOIN Ticket ON GisProcess.TicketID=Ticket.TicketID) INNER JOIN Content ON Ticket.ContentID=Content.ContentID END

会提示以下错误:

Msg 156, Level 15, State 1, Line 4
Incorrect syntax near the keyword 'view'.

出现这个错误的原因是:create view 这一句必须是批处理中的第一句。

所以可以将该语句修改为:

 IF EXISTS(SELECT 1 FROM sys.views WHERE name='Report_IndividualTicket') DROP VIEW Report_IndividualTicket GO create view Report_IndividualTicket as SELECT Ticket.TicketNumber, Ticket.TicketID, GisProcess.StageName, Content.DtReceived, Content.ContentText FROM (GisProcess INNER JOIN Ticket ON GisProcess.TicketID=Ticket.TicketID) INNER JOIN Content ON Ticket.ContentID=Content.ContentID GO

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