Question

I need to display a news-tip daily and my table structure as below.

| id  |  ndate      |News Tip |
+------+----------------------+
| 1541 | NULL       | news1   |
| 1545 | 14-10-2010 | news2   | 
| 1567 | NULL       | news3   |
| 1568 | NULL       | news4   |
| 1582 | NULL       | news5   |
     ....     ....      
| 1702 | NULL       | news217 |

and the query select * from newstip where ndate!=NULL and checks whether ndate matches current date its ok. if not i need to update next row (1567 in this case) to current date and all others to NULL.

id is unique but not in sequence so below query not possible.

update newstip set ndate='15-10-2010' where id=(id+1); //failure

How to solve this situation ?. i’m using php to this process;

Answer 1

UPDATE newstip
SET ndate = '15-10-2010'
WHERE id = ( SELECT id FROM newstip WHERE id > 1545 ORDER BY id LIMIT 1 )

This won’t update anything if no record has an id > 1545.