I have a table where I want to update each record with today's date
as it's hit, or add the record if it's not in there:
+------+-----------------+------------+
| id | creation_date | last_hit |
+------+-----------------+------------+
I'm trying to do this with a minimum of hits to the db, so rather
than first searching to see if a matching record is in there, I
thought I'd just go ahead and update the matching record, check to
see if it failed, and if it failed then add a new one, like this:
$id = $_GET['id'];
// Update
$query = "update table set last_hit=NOW() where id='$id'";
$result = mysql_query($query);
// Add
if(the update failed) {
$query = "insert into table (id,creation_date,last_hit) values
('$id',NOW(),NOW())";
$result = mysql_query($query);
}
What's the fastest way to check if the update failed?
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