After struggling for couple of hours I found this “INSERT IGNORE INTO”.

Thanks A TON

$link = mysql_connect($hostname, $user, $pass);
mysql_select_db($dbname, $link);

$results = mysql_query(“SELECT * FROM genesis”,$link);

require(‘./wp-load.php’);

If the statement updates a row instead, LAST_INSERT_ID() is not meaningful. However, you can work around this by using LAST_INSERT_ID(expr). Suppose that id is the AUTO_INCREMENT column. To make LAST_INSERT_ID() meaningful for updates, insert rows as follows:

INSERT INTO table (a,b,c) VALUES (1,2,3)
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id), c=3;

Actually, do think if you really want those X and Y serve the purpose of unique IDs… maybe it is better having a single ID, and storing X and Y as values?

In any case, you could implement X/Y-incrementing logic in your app completely DB-engine independently, e.g.

X.new = SELECT MAX(X) + 1 FROM table;
Y.new = SELECT MAX(Y) + 1 FROM table;
INSERT INTO table(X, Y, note) VALUES (X.new, Y.new, note);

However, in this case you should be aware of possible race conditions, if there are several processes possibly writing to that table. To avoid that, you will need table locking. Some apps (e.g. Gallery2) maintain separate tables (sequences) of incremental IDs, to avoid locking data-tables in favour of locking only sequence-tables…

Better use a single autoincrement ID

I have a note table, each note has a respective x and y positions..and everytime i add/create a new note, the newly added note should have a unique x and y values in the db..can you suggest on how to do this on sql?

Also, MySQL INSERT…SELECT manual page says: However, you cannot insert into a table and select from the same table in a subquery. Thus, your solution may not work at all.