Question

I am having two tables table_purchase1 and table_purchase2. From these tables i want to list purchase history with order by date.

My tables

table_purchase1

purchase_id   user_id    item    date
  1               1       AA1    2011-06-10  
  2               1       AA2    2011-06-12


table_purchase2

purchase_id   user_id    item      date
  1               1       BB1    2011-06-11  
  2               1       BB2    2011-06-13

Expecting result

item

BB2,AA2,BB1,AA1

How can i do this

Thanks

Answer 1

You can use UNION:

(SELECT item, `date` FROM table_purchase1)
UNION
(SELECT item, `date` FROM table_purchase2)
ORDER BY `date`

If you need single row following might work:

SELECT GROUP_CONCAT(
(  (SELECT item, `date` FROM table_purchase1)
 UNION
  (SELECT item, `date` FROM table_purchase2)
 ORDER BY `date`
))