Tabl1:
T1_no,T1_name,...,T1_T2
Table2:
T1_T2,T2_name...现在想通过T1_name,T2_name取得T1_no,:
strSQL.Formart("SELECT T1_no from Table1,Tabale2,where T1_name='%s' AND T2_name='%s' AND Tbal1.T1_T2=Tbal2.T1_T2)怎么样优化才能查询更快呢?
谢谢!
T1_no,T1_name,...,T1_T2
Table2:
T1_T2,T2_name...现在想通过T1_name,T2_name取得T1_no,:
strSQL.Formart("SELECT T1_no from Table1,Tabale2,where T1_name='%s' AND T2_name='%s' AND Tbal1.T1_T2=Tbal2.T1_T2)怎么样优化才能查询更快呢?
谢谢!
解决方案 »
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