在SELECT中将一列值分成两列？ [英] Split a column value into two columns in a SELECT?

问题描述

我在varchar列中有一个字符串值。它是一个包含两部分的字符串。

I have a string value in a varchar column. It is a string that has two parts. Splitting it before it hits the database is not an option.

该列的值如下所示：

one_column:
'part1 part2'
'part1 part2'

所以我想要的是一个看起来像这样的结果集：

So what I want is a a result set that looks like:

col1,col2:
part1,part2
part1,part2

如何在SELECT语句中执行此操作？我找到了一个pgsql函数，将字符串分割成一个数组，但是我不知道如何将其分成两列。

How can I do this in a SELECT statement? I found a pgsql function to split the string into an array but I do not know how to get it into two columns.

推荐答案

select split_part(one_column, ' ', 1) AS part1, 
       split_part(one_column, ' ', 2)  AS part2 ...

这篇关于在SELECT中将一列值分成两列？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！