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select a.name as parename ,b.name as chliname,a.typeId as paretype,b.typeid as chlitype from prodkind a inner join prodkind b where a.typeId=b.parentId ²é³öÀ´µÄ×Ö¶ÎÃû³Æ²»ÊÇ parename ¶øÊÇname se ......
public class Student{ //×ֶε͍Òå private String _number; //ѧºÅ private String _name; //ÐÕÃû private   ......
import java.sql.Connection; import java.sql.Date; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class QueryTest&n ......