摘要: [代码]select to_char(sysdate,'YYYY-MM-DD HH12:MI:SS AM')from dual; [代码]ISNULL(check_expression,replacement_value)ISNULL(price,$10.00)update table1 set unit_exec=u.units_Name fromtable2 u where u.user_Code = user_Code 阅读全文
posted @ 2010-12-15 14:08 边缘凉风 阅读(218) 评论(0) 推荐(0) 编辑