M maipu Unregistered / Unconfirmed GUEST, unregistred user! 2001-12-11 #1 有两个结构完全相同的表(*.db) 如何将两表中完全相同的记录挑选出来! 如何将两表中部分字段相同的记录挑选出来!
Y yzhshi Unregistered / Unconfirmed GUEST, unregistred user! 2001-12-11 #2 Select Table1.* From Table1,Table2 where table1.col1=Table2.col1 and table1.col2=Table2.col2 and …… 1、2相同的SQL,只是and的部分不同
Select Table1.* From Table1,Table2 where table1.col1=Table2.col1 and table1.col2=Table2.col2 and …… 1、2相同的SQL,只是and的部分不同
蒋 蒋劲刚 Unregistered / Unconfirmed GUEST, unregistred user! 2001-12-11 #3 用SQL, Select a.f1,a.f2 where (a.f1=b.f1)and(a.f2=b.f2)
白 白海森 Unregistered / Unconfirmed GUEST, unregistred user! 2001-12-11 #4 select a.f1,f2,f3 from a,b where (a.f1=b.f1) and (a.f2=b.f2)
Y YNTW Unregistered / Unconfirmed GUEST, unregistred user! 2001-12-11 #5 select a.* from a,b where (a.f1=b.f1) and (a.f2=b.f2) and 其它字段