SQL Server2008R2学习记录

IF EXISTS(SELECT 1 FROM SYSOBJECTS so,SYSCOLUMNS sc    
    WHERE so.ID = sc.ID AND so.NAME=‘表名‘ AND sc.NAME=‘字段‘) 

IF EXISTS(SELECT 1 FROM syscolumns WHERE id = object_id(‘表名‘) AND name = ‘字段‘)

IF COL_LENGTH(‘表名‘, ‘字段‘) IS NOT NULL    
    PRINT N‘存在‘    
ELSE    
    PRINT N‘不存在‘   

SQL Server2008R2学习记录

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