I have two tables
card_index
+-----+-----+-----+-----+
| uid | id1 | id2 | id3 |
+-----+-----+-----+-----+
| 1 | 125 | 129 | 145 |
| 2 | 127 | 128 | 132 |
+-----+-----+-----+-----+
and card_data
+----+------------+----------+...
| id | last_use | active |
+----+------------+----------+...
| 125| 10-07-2014 | true |
| 127| 27-02-2014 | true |
| 128| 15-06-2014 | true |
| 129| 10-01-2013 | false |
+----+------------+----------+... and so on
I want to select all data from 'card_data' by 'uid' from 'card_index', so the result for 'uid' = 1 should look like this:
+----+------------+----------+
| id | last_use | active |
+----+------------+----------+
| 125| 10-07-2014 | true |
| 129| 10-01-2013 | false |
| 145| 13-01-2013 | true |
+----+------------+----------+
The SQL query I made is:
SELECT * FROM card_data WHERE id IN (SELECT CONCAT(id1,',',id2,',',id3) FROM card_index WHERE uid = 1);
However it only selects firts row:
+----+------------+----------+
| id | last_use | active |
+----+------------+----------+
| 125| 10-07-2014 | true |
+----+------------+----------+
Can anyone help me? I don't know what's wrong. I'm using mysql-server 5.5.38-log, compiled from source on FreeBSD
Using INNER JOIN
instead of combination of CONCAT
and WHERE id IN
worked for me. Here's the query:
SELECT * FROM card_data
INNER JOIN card_index ON id1=id OR id2=id OR id3=id
WHERE uid = 1;
And the desired result:
+----+------------+----------+
| id | last_use | active |
+----+------------+----------+
| 125| 10-07-2014 | true |
| 129| 10-01-2013 | false |
| 145| 13-01-2013 | true |
+----+------------+----------+
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.