Hi , this is MYSQL query...In which , two tables are updating at the same time using joins.
I want query for the same in oracle SQL....Help me to update the tables.
Code:
mysql> select * from orders;
+---------+--------+----------+---------------------+
| OrderID | BookID | Quantity | DateOrdered |
+---------+--------+----------+---------------------+
| 1001 | 103 | 1 | 2004-01-12 12:30:00 |
| 1002 | 101 | 1 | 2001-02-12 12:31:00 |
| 1003 | 103 | 2 | 2002-03-12 12:34:00 |
| 1004 | 104 | 3 | 2003-04-12 12:36:00 |
| 1005 | 102 | 1 | 2004-05-12 12:41:00 |
| 1006 | 103 | 2 | 2001-06-12 12:59:00 |
| 1007 | 101 | 1 | 2002-07-12 13:01:00 |
| 1008 | 103 | 1 | 2003-08-12 13:02:00 |
| 1009 | 102 | 4 | 2004-09-12 13:22:00 |
| 1010 | 101 | 2 | 2005-11-12 13:30:00 |
| 1011 | 103 | 1 | 2006-12-12 13:32:00 |
| 1012 | 105 | 1 | 2001-02-12 13:40:00 |
| 1013 | 106 | 2 | 2002-04-12 13:44:00 |
| 1014 | 103 | 1 | 2003-06-12 14:01:00 |
| 1015 | 106 | 1 | 2005-01-12 14:05:00 |
| 1016 | 104 | 2 | 2003-11-12 14:28:00 |
| 1017 | 105 | 1 | 2002-03-12 14:31:00 |
| 1018 | 102 | 1 | 2001-05-12 14:32:00 |
| 1019 | 106 | 3 | 2003-07-12 14:49:00 |
| 1020 | 103 | 1 | 2004-01-12 14:51:00 |
+---------+--------+----------+---------------------+
20 rows in set (0.00 sec)
mysql> select * from books;
+--------+----------+---------+
| BookID | BookName | InStock |
+--------+----------+---------+
| 101 | Writing | 11 |
| 102 | News | 17 |
| 103 | Angels | 23 |
| 104 | Poet | 32 |
| 105 | Dunces | 6 |
| 106 | Solitude | 28 |
+--------+----------+---------+
6 rows in set (0.00 sec)
mysql> UPDATE Books, Orders
-> SET Orders.Quantity=Orders.Quantity+2,
-> Books.InStock=Books.InStock-2
-> WHERE Books.BookID=Orders.BookID
-> AND Orders.OrderID = 1002;
Query OK, 2 rows affected (0.00 sec)
Rows matched: 2 Changed: 2 Warnings: 0
mysql> select * from books;
+--------+----------+---------+
| BookID | BookName | InStock |
+--------+----------+---------+
| 101 | Writing | 9 |
| 102 | News | 17 |
| 103 | Angels | 23 |
| 104 | Poet | 32 |
| 105 | Dunces | 6 |
| 106 | Solitude | 28 |
+--------+----------+---------+
6 rows in set (0.00 sec)
mysql> select * from orders;
+---------+--------+----------+---------------------+
| OrderID | BookID | Quantity | DateOrdered |
+---------+--------+----------+---------------------+
| 1001 | 103 | 1 | 2004-01-12 12:30:00 |
| 1002 | 101 | 3 | 2013-07-27 16:58:37 |
| 1003 | 103 | 2 | 2002-03-12 12:34:00 |
| 1004 | 104 | 3 | 2003-04-12 12:36:00 |
| 1005 | 102 | 1 | 2004-05-12 12:41:00 |
| 1006 | 103 | 2 | 2001-06-12 12:59:00 |
| 1007 | 101 | 1 | 2002-07-12 13:01:00 |
| 1008 | 103 | 1 | 2003-08-12 13:02:00 |
| 1009 | 102 | 4 | 2004-09-12 13:22:00 |
| 1010 | 101 | 2 | 2005-11-12 13:30:00 |
| 1011 | 103 | 1 | 2006-12-12 13:32:00 |
| 1012 | 105 | 1 | 2001-02-12 13:40:00 |
| 1013 | 106 | 2 | 2002-04-12 13:44:00 |
| 1014 | 103 | 1 | 2003-06-12 14:01:00 |
| 1015 | 106 | 1 | 2005-01-12 14:05:00 |
| 1016 | 104 | 2 | 2003-11-12 14:28:00 |
| 1017 | 105 | 1 | 2002-03-12 14:31:00 |
| 1018 | 102 | 1 | 2001-05-12 14:32:00 |
| 1019 | 106 | 3 | 2003-07-12 14:49:00 |
| 1020 | 103 | 1 | 2004-01-12 14:51:00 |
+---------+--------+----------+---------------------+
20 rows in set (0.00 sec)I want query for the same in oracle SQL....Help me to update the tables.