如何在按列B分组的列A中使用DISTINCT csv

Question

以下是表T1

中的示例数据

CREATE TABLE T1 (TRANS_ID INT , SCENARIO VARCHAR(50))
INSERT INTO T1 VALUES (1,'DA_HRNM'),(1,'DA_HRNM'),(2,'DA_KW'),(2,'DA_HRC'),(3,'DA_BOG'),(3,'DA_HRC'),(3,'DA_HRC')

我想写一个查询来返回以下输出 -

基本上我希望DISTINCT

中的col SCENARIO GROUP BY TRANS_ID逗号分隔值

Answer 1

您需要RewriteRule ^people/([^/]+)/([^/]+)/?$ people.php?search=$1&location=$2 [NC,QSA,L] RewriteRule ^people/([a-zA-Z0-9]+)$ people.php?search=$1 [NC,QSA,L] 和distinct

sql fiddle demo

for xml path