摘要: 1.对于满足SQL92标准的SQL语句:SELECT foo,count(foo) FROM pokes WHERE foo>10 GROUP BY foo HAVING ORDER BY foo,其执行的顺序应该为( ) FROM->WHERE->GROUP BY->HAVING->SELECT- 阅读全文
posted @ 2016-12-11 22:42 爱简单的Paul 阅读(1381) 评论(2) 推荐(0) 编辑