mssql里判断数据库对象是否存在的语句

mssql里判断数据库对象是否存在的语句

2:  if exists (select name from master..sysdatabases where name in ('db_name'))

3:  drop database db_name

4:  go

5:

6:  --判断指定的存储过程是否存在，存在则删除

7:  if exists (select * from sysobjects where objectproperty(object_id('proc_name'), 'IsProcedure')=1)

8:  drop procedure proc_name

9:  go

10:

11:  --判断指定的表是否存在，存在则删除

12:  if exists (select * from sysobjects where objectproperty(object_id('table_name'),'istable')=1)

13:  drop table table_name

14:  go

15:

16:  --判断指定的自定义函数是否存在，存在则删除

17:  if exists (select * from sysobjects where objectproperty(object_id('dbo.func_name'), 'isansinullson')=1)

18:  drop function dbo.func_name

19:  go

20:

21:  --判断指定的临时表是否存在，存在则删除

22:  if exists (select * from tempdb..sysobjects where name like '#table_name%')

24:  go