请jFresH_MaN(ＴＭ)进来领分。。。

Question

dbmd.getPrimaryKeys("","","users");

Answer 1

麻烦看看我的部分代码：ResultSet dbRs;
        ResultSet dbrs2;
        java.sql.DatabaseMetaData dbmd;        conn=this.dbconn();
        if(conn!=null)
        {Statement stmt;
stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
dbRs=stmt.executeQuery("select * from Users");dbmd=conn.getMetaData();
dbrs2=dbmd.getPrimaryKeys("","","Users");int j=0;
         while(dbRs.next())
            {
             j++;
             System.out.println(j);
            }            int i=0;
            if(!dbrs2.next())
            {
                System.out.println("sssssssssss");
            }
            while(dbrs2.next())
            {
                    i++;
                System.out.println(i);
            }       conn.close();
    }//--------------//
结果是dbRs能够得到值，而dbrs2却是空的打印出了“ssssssss”