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create table tb(id int)
insert into tb values(708)
insert into tb values(709)
insert into tb values(801)
insert into tb values(903)
insert into tb values(910)
insert into tb values(1002)
insert into tb values(1010)
go
select stuff(right('0000'+ltrim(id),4),3,0,'-') id from tb
drop table tb
/*
id
---------
07-08
07-09
08-01
09-03
09-10
10-02
10-10
(所影响的行数为 7 行)
*/
declare @c int
set @c=906
SELECT STUFF(right('000'+convert(varchar,@c),4),3,0,'-')
/*
---------
09-06
(1 行受影响)
*/
declare @c int
set @c=906
select left(right('0'+convert(varchar,@c),4),2)+'-'+right(convert(varchar,@c),2)
/*
---------
09-06
(1 行受影响)
*/
SELECT STUFF(RIGHT('0000'+@col,4),3,0,'-')
select left(right('0'+convert(varchar,col),4),2)+'-'+convert(varchar,col),2