删除指定表的所有索引
/*
删除指定表的所有索引，包括主键索引，唯一索引和普通索引
调用:
declare @tbName varchar(20)
set @tbName='A'
exec sp_dropindex @tbName
vivianfdlpw 2005.9 引用情保留此信息
*/
if exists(select 1 from sysobjects where id=object_id('sp_dropindex') and xtype='P')
drop procedure sp_dropindex
go
create procedure sp_dropindex
@tbName varchar(20)=null --索引名
as
if @tbName is null
begin
raiserror('必须提供@tbName参数',12,1)
return
end
/*
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*/
create table #
(
id int identity,
index_name varchar(50),
index_description varchar(1000),
index_keys varchar(100)
)
insert #(index_name,index_description,index_keys)
exec sp_helpindex @tbName
declare @i int,@sql varchar(100)
set @i=1
while @i<=(select max(id) from #)
begin
if exists(select 1
from sysobjects A
join # B on A.name=B.index_name
where B.id=@i and A.xtype in ('PK','UQ'))
begin
select @sql='alter table '+@tbName+' drop constraint '
+(select index_name from # where id=@i)
exec(@sql)
end
else
begin
select @sql='drop index '+@tbName+'.'
+(select index_name from # where id=@i)
exec(@sql)
end
set @i=@i+1
end
drop table #
go
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