2008年10月30日
sql select语句详解
摘要： SELECT [ ALL | DISTINCT [ ON ( expression [, ...] ) ] ] * | expression [ AS output_name ] [, ...] [ FROM from_item [, ...] ] [ WHERE condition ] [ GROUP BY expression [, ...] ] [ HAVING condition [, .... 阅读全文
posted @ 2008-10-30 22:01 pomp 阅读(56177) 评论(0) 推荐(0) 编辑