2014年3月31日
SQL执行顺序
摘要： 对于查询语句 (1) FROM left_table (3) join_type JOIN right_table (2) ON join_condition (4) WHERE where_condition (5) GROUP BY group_by_list (6) WITH {cube | rollup} (7) HAVING having_condition (8) SELECT (9) DISTINCT (11) top_specification select_list (10) ORDER BY order_by_list标准的 SQL 的解析顺序为: (1)... 阅读全文
posted @ 2014-03-31 11:33 nicklooo 阅读(229) 评论(0) 推荐(0)