摘要: create or replace function random_string(integer)returns text as$body$ select array_to_string(array(select substring('0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz' FROM (ceil... 阅读全文
posted @ 2016-01-19 08:30 拿走不谢 阅读(6589) 评论(0) 推荐(0)