我想选择记录与其他记录共享一个字段值的记录,但我试图只查询返回一个事件。例如,在该表:MySQL选择在哪里重复的字段,不返回所有记录
COUNTRY LANGUAGE
Mexico Spanish
Portugal Portuguese
Russia Russian
Spain Spanish
Thailand Thai
United Kingdom English
United States English
...我想回:
COUNTRY LANGUAGE
Mexico Spanish
Spain Spanish
United Kingdom English
United States English
使用:
SELECT * FROM `table` GROUP BY `language` HAVING COUNT(language) > 1
我只得到:
COUNTRY LANGUAGE
Spain Spanish
United Kingdom English
我在哪里错了?