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--判断数据库是否存在
if exists (select * from sys.databases where name = '数据库名')
--drop database [数据库名]
--判断表是否存在
if exists (select * from sysobjects where id = object_id(N'[表名]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
--drop table [表名]
if object_id(N'tablename',N'U') is not null
print '表存在'
else
print '表不存在'
--判断某表的某字段是否存在
if (not exists(select * from syscolumns where id=object_id('表明') and name='字段名'))
print '字段存在'
else
print '字段不存在'
--判断存储过程是否存在
if exists (select * from sysobjects where id = object_id(N'[存储过程名]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
-- drop procedure [存储过程名]
--判断是否存在'MyView52'这个试图
IF EXISTS (SELECT TABLE_NAME FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_NAME = N'MyView52')
PRINT '存在'
else
PRINT '不存在'
--判断函数是否存在
IF OBJECT_ID (N'函数名') IS NOT NULL DROP FUNCTION dnt_split
--判断数据库是否开启了全文搜索
select databaseproperty('数据库名','isfulltextenabled')
--判断全文目录是否存在
select * from sysfulltextcatalogs where name ='全文目录名称'