摘要：
http://dev.csdn.net/article/65/65909.shtmSQL 里面最常用的命令是 SELECT 语句，用于检索数据。语法是：SELECT [ ALL | DISTINCT [ ON ( expression [, ...] ) ] ] * | expression [ AS output_name ] [, ...] [ INTO [ TEMPORARY | TEMP ] [ TABLE ] new_table ] [ FROM from_item [, ...] ] [ WHERE condition ] [ GROUP BY expression [, ...] 阅读全文
posted @ 2011-06-08 22:39 gsky 阅读(2011) 评论(0) 推荐(0) 编辑