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SQL code:
declare @tb1 table(a varchar(20),b varchar(20))
insert into @tb1 select 'a101','b11121'
insert into @tb1 select 'a102','b00012'
select * from @tb1

declare @tb2 table(id int,c varchar(20))
insert into @tb2 select 1,'a101'
insert into @tb2 select 2,'b11121'
insert into @tb2 select 3,'a000'
insert into @tb2 select 4,'c1001'
select * from @tb2

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2 b11121
3 a000
4 c1001

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3 a000
4 c1001

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SQL code:
declare @tb1 table(id int,a varchar(20),b varchar(20))
insert into @tb1 select 1,'a101','b11121'
insert into @tb1 select 2,'a102','b00012'
select * from @tb1

declare @tb2 table(id int,c varchar(20))
insert into @tb2 select 1,'a101'
insert into @tb2 select 2,'b11121'
insert into @tb2 select 3,'a000'
insert into @tb2 select 4,'c1001'
select * from @tb2

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ÎÒÏÖÔÚÒª°Ñ @tb2 ÖÐc×Ö¶Î ÔÚ @tb1 ÖÐÓÐÖØ¸´µÄÊý¾Ýɾ³ý£¬±£Áô@tb2 ÖÐid ½ÏСµÄ
Èç
@tb1ÖÐ 'a101',' b11121' ÔÚͬһÐУ¬
¶ø@tb2 ÖÐc×Ö¶ÎÓÐ
1 a101
2 b11121
3 a000
4 c1001

¾Íɾ³ýµÚ¶þÐУ¬×îºóµÃµ½½á¹û
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