psql
Show query result column types (PostgreSQL)
开发者_运维技巧Is there a way to easily get the column types of a query result?I read the psql documentation, but I don\'t think it supports that.Ideally, I\'d be able to get something like:[详细]
2023-01-08 04:08 分类:问答psql除法保留小数,实现向上取整和向下取整操作
在psql中,使用1/4得到的结果是0,因为www.devze.com/它取得是整数,但是有些场景我们是需要保留小数的,还有些场景需要向上取整,或者四舍五入的。[详细]
2022-12-10 09:32 分类:数据库