SQL SERVER先判斷視圖是否存在然後再創建視圖的語句，sqlserver

SQL SERVER先判斷視圖是否存在然後再創建視圖的語句，sqlserver

如果我們的語句為：

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

會提示以下錯誤：

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

出現這個錯誤的原因是：create view 這一句必須是批處理中的第一句。

所以可以將該語句修改為：

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

sql server怎判斷視圖是否存在

SELECT count(*) as cut FROM sysviews WHERE object_id = '[dbo].[視圖名]'
if fieldByName('cut')>0 then
//存在
else
//不存在
 

sql server 判斷視圖是否存在

先判斷下列語句是否返回結果,然後再判斷.

SELECT * FROM DBO.SYSOBJECTS B WHERE B.XTYPE = 'V' AND B.NAME = 'A'