请问这两个方式哪一个更好啊
1
sql="select t2.city from povince as t1 inner join city as t2 on t1.info_id = t2.type_id where t1.province = '"&province&"'"2
pv = conn.Execute("select info_id from povince where province = '"&province&"'")(0)
sql = "select city from city where type_id = "&pv
1
sql="select t2.city from povince as t1 inner join city as t2 on t1.info_id = t2.type_id where t1.province = '"&province&"'"2
pv = conn.Execute("select info_id from povince where province = '"&province&"'")(0)
sql = "select city from city where type_id = "&pv
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