Is it possible to use Crosstab/Pivot Query in MySQL?
16,966
You can use this query -
SELECT
supplier_id,
MAX(IF(date = '2012-01-01', value, NULL)) AS '2012-01-01',
MAX(IF(date = '2012-01-03', value, NULL)) AS '2012-01-03',
MAX(IF(date = '2012-05-01', value, NULL)) AS '2012-05-01'
FROM (
SELECT supplier_id, DATE(date) date, CONCAT(SUM(price), '(', qty, ')') value FROM supplier
GROUP BY supplier_id, DATE(date)
) t
GROUP BY supplier_id;
+-------------+------------+------------+------------+
| supplier_id | 2012-01-01 | 2012-01-03 | 2012-05-01 |
+-------------+------------+------------+------------+
| 1 | 500.00(2) | 450.00(10) | NULL |
| 2 | 400.00(5) | NULL | NULL |
| 3 | NULL | NULL | 500.00(1) |
+-------------+------------+------------+------------+
It produces result you want. But if you want to do it dynamically, then have a look at this article 'Automate pivot table queries' - http://www.artfulsoftware.com/infotree/queries.php#523, or this link - Dynamic pivot tables.
Author by
SiHyung Lee
Updated on June 25, 2022Comments
-
SiHyung Lee about 2 years
I'm using MySQL. This is table i have
supplier_ID Item_ID Date Price QTY 1 1 2012-01-01 00:00:00 500.00 2 1 1 2012-01-03 00:00:00 450.00 10 2 1 2012-01-01 00:00:00 400.00 5 3 1 2012-05-01 00:00:00 500.00 1
I need a select query showing a table something like this.
supplier_ID 2012-01-01 2012-01-03 2012-05-01 1 500.00(2) 450.00(10) null 2 400.00(5) null null 3 null null 500.00(1)