How to create a view with mysqli_multi_query?

问题

I'm developing a PHP application, that should be able to setup a project database and update it / its data definition, using a list of SQL files. Here is a first naïve quick&dirty written procedural prototype:

<?php
function executeSQLFiles(array $dbOptions, array $dbFiles) {
    $dbConnection = mysqli_connect($dbOptions['host'], $dbOptions['user'], $dbOptions['password'], $dbOptions['database']);
    if (mysqli_connect_errno($dbConnection)) {
        echo "Failed to connect to MySQL: " . mysqli_connect_error();
    }
    // db setup
    foreach ($dbFiles['setup'] as $listItem) {
        $query = file_get_contents(__DIR__ . '/../../config/database/' . $listItem['file']);
        $result = mysqli_multi_query($dbConnection, $query);
        if (!$result) {
            die($listItem['file'] . ': ' . 'Invalid query: ' . mysqli_error($dbConnection) . PHP_EOL);
        } else {
            echo $listItem['file'] . ' ' . 'OK' . PHP_EOL;
        }
    }
    // db migration
}

It works for tables, but doesn't work for views. I don't get any errors, the view just does not get created and I get the message "filename.sql OK".

The view creating SQL script (generated with MySQL Workbench) is OK. When I execute it in a MySQL client, a view is created.

-- -----------------------------------------------------
-- Placeholder table for view `allproviders`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `allproviders` (`id` INT, `providertype` INT, `providerid` INT, `displayedname` INT, `url` INT, `city_id` INT);
SHOW WARNINGS;

-- -----------------------------------------------------
-- View `allproviders`
-- -----------------------------------------------------
DROP VIEW IF EXISTS `allproviders` ;
SHOW WARNINGS;
DROP TABLE IF EXISTS `allproviders`;
SHOW WARNINGS;
DELIMITER $$
CREATE OR REPLACE VIEW `allproviders` AS

SELECT
    `providers`.`id`,
    `providers`.`type` AS `providertype`,
    `providers`.`providerid` AS `providerid`,
    `universities`.`displayedname`,
    `universities`.`url`,
    `universities`.`city_id`
FROM
    `providers`
JOIN
    `universities` ON `providers`.`providerid` = `universities`.`id`
UNION
SELECT
    `providers`.`id`,
    `providers`.`type` AS `providertype`,
    `providers`.`providerid` AS `providerid`,
    `partners`.`displayedname`,
    NULL `url`,
    `partners`.`city_id`
FROM
    `providers`
JOIN
    `partners` ON `providers`.`providerid` = `partners`.`id`
$$
DELIMITER ;

;
SHOW WARNINGS;


SET SQL_MODE=@OLD_SQL_MODE;
SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;
SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS;

Am I doing something wrong? How to get it working?

Thx

来源：https://stackoverflow.com/questions/15411710/how-to-create-a-view-with-mysqli-multi-query

标签

php

mysql

view

mysqli

mysqli-multi-query