一、批量插入数据
INSERT ALL into MS_USER(mobile_phone,user_name) values('12345678902','Kevin2') into MS_USER(mobile_phone,user_name) values('12345678903','Kevin3') into MS_USER(mobile_phone,user_name) values('12345678904','Kevin4') SELECT * FROM dual;
二、高效的查询分页
1. 无ORDER BY排序:
SELECT tt.* FROM (SELECT ROWNUM AS rowNo,t.* FROM MS_USER t WHERE user_name LIKE '%Kevin%' AND ROWNUM <= 2) tt WHERE tt.rowNo >= 1;
2. 有ORDER BY排序(随着查询范围的扩大,速度会越来越慢):
SELECT ttt.* FROM (SELECT ROWNUM AS rowNo,tt.* FROM (SELECT t.* FROM ms_user t WHERE user_name LIKE '%Kevin%' ORDER BY mobile_phone DESC) tt WHERE ROWNUM <= 2) ttt WHERE ttt.rowNo >= 1;
三、参考的文章
1.Oracle insert all语句介绍 (http://blog.csdn.net/indexman/article/details/28496901)
2.ORACLE分页查询SQL语法——最高效的分页(http://blog.sina.com.cn/s/blog_8604ca230100vro9.html)