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删除指定表的所有索引


删除指定表的所有索引<script language="javascript" type="text/javascript"> document.title="删除指定表的所有索引 - "+document.title </script>

/*
    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
asif @tbName is null
begin
     raiserror('必须提供@tbName参数',12,1)
     return
endcreate 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 @tbNamedeclare @i int,@sql varchar(100)
set @i=1while @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
enddrop table #
go

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