/*--将所有的表中,数值类型由char,varchar改为nchar,nvarchar --*//*--调用示例: exec p_set --*/ if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[p_set]') and OBJECTPROPERTY(id, N'IsProcedure') = 1) drop procedure [dbo].[p_set] GO--用下面的存储过程 create procedure p_set as declare tb cursor for SELECT sql='alter table ['+d.name +'] alter column ['+a.name+'] n' +b.name+'('+cast(a.length*2 as varchar)+')' FROM syscolumns a left join systypes b on a.xtype=b.xusertype inner join sysobjects d on a.id=d.id and d.xtype='U' and d.name<>'dtproperties' where b.name in('char','varchar') and not exists(SELECT 1 FROM sysobjects where xtype='PK' and name in ( SELECT name FROM sysindexes WHERE indid in( SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid ))) --主键不能修改 order by d.name,a.namedeclare @sql varchar(1000) open tb fetch next from tb into @sql while @@fetch_status = 0 begin exec(@sql) fetch next from tb into @sql end close tb deallocate tb go
To: st_2000(破猫(搬张凳子来学习)) 问题解决了吗??按照 jiangchuandong(奋斗成男人)的方法能解决么?
/*--将所有的表中,数值类型由char,varchar改为nchar,nvarchar --*//*--调用示例:
exec p_set
--*/
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[p_set]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[p_set]
GO--用下面的存储过程
create procedure p_set
as
declare tb cursor for
SELECT sql='alter table ['+d.name
+'] alter column ['+a.name+'] n'
+b.name+'('+cast(a.length*2 as varchar)+')'
FROM syscolumns a
left join systypes b on a.xtype=b.xusertype
inner join sysobjects d on a.id=d.id and d.xtype='U' and d.name<>'dtproperties'
where
b.name in('char','varchar')
and
not exists(SELECT 1 FROM sysobjects where xtype='PK' and name in (
SELECT name FROM sysindexes WHERE indid in(
SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid
))) --主键不能修改
order by d.name,a.namedeclare @sql varchar(1000)
open tb
fetch next from tb into @sql
while @@fetch_status = 0
begin
exec(@sql)
fetch next from tb into @sql
end
close tb
deallocate tb
go
按照 jiangchuandong(奋斗成男人)的方法能解决么?
我看不懂写的是什么?