标签：form concat har sysdate weight signed col orm char
// Oracle to_char(sysdate,‘yyyy-MM-dd HH24:mm:ss‘) // MySQL select date_format(now(),‘%Y-%m-%d %H:%i:%s‘)
//Oracle to_char(1) //MySQL select cast(number as char) / select cast(123 as char) select concat(123,‘‘)
//Oracle to_number(sort) //MySQL cast(sort as signed integer)
//Oracle select NVL(expr1,expr2) //MySQL select ifnull(expr1,expr2)
标签：form concat har sysdate weight signed col orm char
原文地址：https://www.cnblogs.com/fengxueyi/p/13997588.html
