sql2000中可以
select T1.SBBH,T1,SYDW,T2.IP
from A T1,
B T2
WHERE T1.SBBH*=T2.SBBH
或者
select T1.SBBH,T1,SYDW,T2.IP
from A T1 left join B t2 on t1.SBBH=t2.SBBH
select a.sbbh,a.sydw,b.ip from 表A a left join 表B b on a.sbbh=b.sbbh 纯手打,没测试,应该没问题
简单的关联啥,
select A.sbbh,A.sydw,B.ip from A,B where A.sbbh=B.sbbh;
select A.sbbh,A.sydw,B.ip from A left jion B on A.sbbh=B.sbbh
select a.sbbh,a.sydw.b.ip from a left join b on a.sbbh=b.sbbh
试试