自动清理 MS SQL Server Table Collation 问题 转载

Cannot resolve the collation conflict between "Latin1_General_CI_AS" and "SQL_Latin1_General_CP1_CI_AS" in the equal to operation.

declare @CollationName varchar(500);

   set @CollationName = 'SQL_Latin1_General_CP1_CI_AS'
 
   create table #tmp (sqlStr varchar(max));

   insert into #tmp

   select  'alter table [' + o.name + '] alter column [' + c.name + ']' +

   (case c.system_type_id when 167 then ' varchar(' when 175 then ' char(' else ' nvarchar(' end)

  + convert(varchar,c.max_length) + ') collate ' + @CollationName

  from sys.columns c,

      sys.objects o

   where  c.object_id=o.object_id and o.type='U' and c.system_type_id in (167,175,231) and collation_name<>@CollationName

   and c.name not in (   

  15:     select     cc.COLUMN_NAME

      from    

          INFORMATION_SCHEMA.TABLE_CONSTRAINTS pk ,

          INFORMATION_SCHEMA.KEY_COLUMN_USAGE cc

       where    

           cc.TABLE_NAME = pk.TABLE_NAME

          and    cc.CONSTRAINT_NAME = pk.CONSTRAINT_NAME)

   

   while (exists (select * from #tmp))

   begin

       declare @sqlStr varchar(max);

       select @sqlStr=(select top 1 sqlstr from #tmp);

       exec(@sqlStr)

       delete from #tmp where sqlStr=@sqlStr

   end

   

   drop table #tmp;