如何在SQL上将一列分为两列

Question

例如：电子邮件

sundar@gmail.com
larry@gmail.com

需要分隔为

column1    column2
sundar     gmail.com
larry      gmail.com

Answer 1

以防mysql

SELECT 
SUBSTRING_INDEX('email', '@', 1) AS name, 
SUBSTRING_INDEX('email', '@', -1) AS domain

，对于mssql

SELECT 
SPLIT_STRING('email', '@', 1) AS name, 
SUBSTRING_INDEX('email', '@', -1) AS domain

这将输出为

name       domain
sundar     gmail.com
larry      gmail.com