I’m doing around 600 INSERT ON DUPLICATE KEY UPDATE queries where each insert can

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Asked: June 8, 20262026-06-08T07:35:21+00:00 2026-06-08T07:35:21+00:00

I’m doing around 600 INSERT ON DUPLICATE KEY UPDATE queries where each insert can

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I’m doing around 600 INSERT ON DUPLICATE KEY UPDATE queries where each insert can have a different set of columns.

The way i’m doing it now is just a foreach loop with a mysql_query(). It’s really slow, the php script stops due to maximum execution time of 30s.

I cant use INSERT INTO table (columns) VALUES (values 1), (values 2), ..., (values n) because each insert must be able to have a different set of columns.

I also looked at prepared queries but from what i saw it seems like that won’t work with different column sets either.

I’m quite a novice to databases and MYSQL. I’m just hacking together something as a weekend project, and right now i just want to get this last piece of the project to work. I’m sorry about not doing this the proper way. (sorry about using deprecated php mysql functions too.) Maybe i should go to bed and rewrite this later. What would be the proper way to do it?

EDIT: here is some info on the table type

-- phpMyAdmin SQL Dump
-- version 3.5.1
-- http://www.phpmyadmin.net
--
-- Host: localhost
-- Generation Time: Jul 22, 2012 at 09:59 PM
-- Server version: 5.5.24-log
-- PHP Version: 5.3.13

SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO";
SET time_zone = "+00:00";

--
-- Database: `trailerbay`
--

-- --------------------------------------------------------

--
-- Table structure for table `movies`
--

CREATE TABLE IF NOT EXISTS `movies` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `imdb` int(7) NOT NULL,
  `title` text COLLATE utf8_unicode_ci,
  `releasedate` date DEFAULT NULL,
  `enlistdate` datetime NOT NULL,
  `runtime` time DEFAULT NULL,
  `trailer` text COLLATE utf8_unicode_ci NOT NULL,
  `plot` text COLLATE utf8_unicode_ci,
  `cover` text COLLATE utf8_unicode_ci NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `id` (`id`),
  UNIQUE KEY `imdb` (`imdb`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1145 ;