/*--修改自定义数据类型精度的示例
假设要修改的自定义变量名为aa
--*/
--1.修改自定义变量类型的名称
exec sp_rename 'aa','aa_bak','USERDATATYPE'
go
--2.新增自定义变量(按新的精度)
EXEC sp_addtype N'aa', N'numeric(20,2)', N'not null'
go
--3.修改表,使用新增的自定义变量
declare @s varchar(8000)
declare tb cursor local
for select 'alter table ['+object_name(a.id)+'] alter column ['
+a.name+'] aa'
from syscolumns a join systypes b on a.xusertype=b.xusertype
where b.name='aa_bak' and objectproperty(a.id,N'IsUserTable')=1
open tb
fetch next from tb into @s
while @@fetch_status=0
begin
exec(@s)
fetch next from tb into @s
end
close tb
deallocate tb
go
--刷新视图
declare hCForEach cursor global for
select '[' + REPLACE(user_name(uid), N']', N']]')+'].['
+ REPLACE(object_name(id), N']', N']]')+ ']'
from dbo.sysobjects
where xtype='V' and status>=0
exec sp_MSforeach_worker 'sp_refreshview ''?'''