later equals never

SELECT * FROM table_nameWHERE (time_column BETWEEN CONVERT(datetime, #页面传进的参数1#, 121) AND CONVERT(datetime, #页面传进的参数2#, 121) + 1) ORDER BY time_column eg: SELECT * FROM testWHE...

查询某员工的领导:[code="java"]select * from emp start with mgr='7902' connect by prior mgr=empno[/code]以下摘自:[url]http://blog.youkuaiyun.com/Bobwu/article/details/3539604[/url]今天发现在oracle中的select语句可以用START...

[code="java"] select * from( select t.*,rownum rn from( select col1, to_char(A.TestTime,'YYYY-MM-DD HH24:MI:SS') as TestTime, from TestTable A where 1=1 ...

方法一：rownum法[code="java"]select * from (select t.*, rownum rn from empt where rownum 10;[/code]方法二: minus法[code="java"] select * from emp where rownum

[code="java"]select * from user_objects where object_type='TABLE';--删除contact表,包括删除与其相关的约束drop table contact cascade constraints--创建contact表create table contact(id number(6) not null primary...