我有以下内容:
CREATE NONCLUSTERED INDEX [MyTableIndex]
ON [dbo].[tablename] ([tablename_ID],[tablename_Field1])
INCLUDE ([Tablename_Field2],[Tablename_Field3])
我想创建一个if语句来检查是否存在。我该怎么做呢?
Answers:
IF NOT EXISTS(SELECT * FROM sys.indexes WHERE name = 'MyTableIndex' AND object_id = OBJECT_ID('tablename'))
BEGIN
-- Index with this name, on this table does NOT exist
END
尝试这个:
IF NOT EXISTS(SELECT * FROM sys.indexes WHERE Name = 'MyTableIndex')
-- put your CREATE INDEX statement here