- 数字转字符串
//Oracle to_char(1) //MySQL select cast(number as char) / select cast(123 as char) select concat(123,‘‘)
- 字符串转数字
//Oracle to_number(sort) //MySQL cast(sort as signed integer)
- 2个字符串返回一个非空的 (NULL)
//Oracle select NVL(expr1,expr2) //MySQL select ifnull(expr1,expr2)
MySQL与Oracle常用函数
标签:form concat har sysdate weight signed col orm char
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