如何获得交叉记录?
否|出发到达价钱1 | BDO | DPS | 11000002 | DPS | AMQ | 800000
输出必须是:DPS
谢谢。
-Asep-
您可以使用自我加入:
SELECT DISTINCT t1.depart
FROM mytable AS t1
JOIN mytable As t2 ON t1.depart = t2.arrive
根据您的评论,简单的select
可能会帮助您查找包含DPS的记录。
SELECT * FROM your_table_name where depart = 'DPS' or arrive = 'DPS'