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×Ö¶Î A B
  100 ff
  101 dd
  102 gg

ÎÒÏë°ÑÁ½Áкϲ¢ ±ä³É
  100:ff
  101:ff
  102:gg

SQL code:
--> ²âÊÔÊý¾Ý: #tb
if object_id('tempdb.dbo.#tb') is not null drop table #tb
go
create table #tb (A int,B varchar(2))
insert into #tb
select 100,'ff' union all
select 101,'dd' union all
select 102,'gg'

select cast(A as varchar(10))+':'+B from #tb

-------------
100:ff
101:dd
102:gg

(3 ÐÐÊÜÓ°Ïì)


ÒýÓÃ
×Ö¶Î A B
100 ff
101 dd
102 gg

ÎÒÏë°ÑÁ½Áкϲ¢ ±ä³É
100:ff
101:ff
102:gg

select ltrim(a) + ':' + b from tb

select cast(a as varchar) + ':' + b from tb


SQL code:

select rtrim(ltrim(A))+':'+rtrim(ltrim(B)) from tt



SQL code:
select ltrim(A)+':'+B from tb


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