求高手
能不能用缺省實現插入數據時對一個列自動生成,格式是PQ+0001...
------解决方案--------------------CREATE TABLE [dbo].[Table1] ( 
 	[sn] [int] IDENTITY (1, 1) NOT NULL , 
 	[col1] AS ( 'PQ ' + replicate( '0 ',(10 - len([sn])))) , 
 	[col2] [char] (10) 
 ) 
 go 
 insert into table1(col2) 
 select  'b ' 
 union select  'c ' 
 go 
 select * from table1;