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INSERT OR UPDATE?

Hello all,

I am writing an app in PHP that uses a PostGres database.
One thing i have noticed is that what should/could be a single line of
SQL code takes about 6 lines of PHP. This seem wasteful and redundant
to me.

Here is a sample of what I'm talking about ($db is a PDO already
defined and created).

$query[1] = "UPDATE my.table, SET somefield = '$someval' WHERE
somecondition";
$query[2] = "INSERT INTO my.table (somefield) VALUES ('$someval')";
if(!$db->query($query[1])){
$db->query($query[2]);
}

What I'm curious to know is if there is some way to simplify this,
either buy some PHP builtin or extension, or possibly something in SQL
I am missing. It seems to me that "UPDATE OR INSERT", should be valid,
but I can't seem to find anything relevant at all about it.

Anyways I hope you don't mind, but I'm crossposting this to
pgsql.general and comp.lang.php to see if I can get some information on
the subject.

Oct 9 '05
10 2424
Jerry Stuckle wrote:
Oliver Saunders wrote:
Postgres is also a super database - in some ways ahead of MySQL. But
it's not as common with the shared hosting companies, so people don't
know as much about it. If you can choose your database, it's worth a
check, also.


Just for the record, Postgres supports "CREATE RULE". One does not have
to spend thousands of dolars for that.

DG
Oct 16 '05 #11

This thread has been closed and replies have been disabled. Please start a new discussion.

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