方法一 判断系统对象是否存在
DECLARE @DbTableFileName VARCHAR ( 100 ) SET @DbTableFileName = ' tx ' IF objectproperty ( object_id ( @DbTableFileName ), ' IsUserTable ' ) IS NOT NULL PRINT ' EXISTS ' ELSE PRINT ' NOT EXISTS ' IF object_id ( @DbTableFileName ) IS NOT NULL PRINT ' EXISTS ' ELSE PRINT ' NOT EXISTS ' IF EXISTS ( SELECT Object_id ( @DbTableFileName )) PRINT ' EXISTS ' ELSE PRINT ' NOT EXISTS '方法二 通过查询系统表
DECLARE @DbTableFileName VARCHAR ( 100 ) SET @DbTableFileName = ' tx ' IF EXISTS ( SELECT 1 FROM sysobjects WHERE name = @DbTableFileName AND TYPE = ' u ' ) PRINT ' EXISTS ' ELSE PRINT ' NOT EXISTS '
整理自http://community.csdn.net/Expert/topic/5283/5283952.xml?temp=.733227
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