Я бы считал себя новичком в mysql / php, не шокирован, когда вы видите мой код: D. Я сделал php-функцию с запросами mysql, которые занимают очень много времени (большую часть времени), когда я вызываю функцию. Они редко выполняются быстро. В PHPmyadmin отдельные запросы в этой php-функции выполняются быстро и без ошибок.
public function getAllMusicDataNew($playlist_name, $mysqli) { // einzeln alle titel / alle künstler / alle alben auflisten als array $sql1 = "Select distinct title, artist, album from songs where id not in(Select distinct id from songs where id IN(Select id from songs where title IN(Select title from songs where id IN(Select song_id from playlist where playlist_id IN (Select playlist_id from playlists where name = '$playlist_name')))))"; $getTitles = $mysqli->query($sql1); $sql2 = "Select distinct artist from songs where id not in(Select distinct id from songs where id IN (Select id from songs where artist IN(Select artist from songs where id IN(Select song_id from playlist where playlist_id IN (Select playlist_id from playlists where name = '$playlist_name')))))"; $getArtists = $mysqli->query($sql2); $sql3 = "Select distinct album, artist from songs where id not in( Select distinct id from songs where id IN(Select id from songs where album IN( Select album from songs where id IN( Select song_id from playlist where playlist_id IN ( Select playlist_id from playlists where name = '$playlist_name'))and album <> '')))"; $getAlbums = $mysqli->query($sql3); $sql4 = "Select distinct title, artist, album from songs where id in(Select distinct id from songs where id IN(Select id from songs where title IN(Select title from songs where id IN(Select song_id from playlist where playlist_id IN (Select playlist_id from playlists where name = '$playlist_name')))))"; $getTitles_added = $mysqli->query($sql4); $sql5 = "Select distinct artist from songs where id in(Select distinct id from songs where id IN (Select id from songs where artist IN(Select artist from songs where id IN(Select song_id from playlist where playlist_id IN (Select playlist_id from playlists where name = '$playlist_name')))))"; $getArtists_added = $mysqli->query($sql5); $sql6 = "Select distinct album, artist from songs where id in( Select distinct id from songs where id IN(Select id from songs where album IN( Select album from songs where id IN( Select song_id from playlist where playlist_id IN ( Select playlist_id from playlists where name = '$playlist_name'))and album <> '')))"; $getAlbums_added = $mysqli->query($sql6); while ($row = $getTitles->fetch_assoc()) { $results_array1[] = $row; } while ($row = $getArtists->fetch_assoc()) { $results_array2[] = $row; } while ($row = $getAlbums->fetch_assoc()) { $results_array3[] = $row; } if(mysqli_num_rows($getTitles_added)!=0) { while ($row = $getTitles_added->fetch_assoc()) { $results_array4[] = $row; } while ($row = $getArtists_added->fetch_assoc()) { $results_array5[] = $row; } while ($row = $getAlbums_added->fetch_assoc()) { $results_array6[] = $row; } } else { $results_array4[] = "empty"; $results_array5[] = "empty"; $results_array6[] = "empty"; } // print_r($titles); $titles["titles"] = $results_array1; $artists["artists"] = $results_array2; $albums["albums"] = $results_array3; $titles_added["titles_added"] = $results_array4; $artists_added["artists_added"] = $results_array5; $albums_added["albums_added"] = $results_array6; // printf($array_merge($results_array1, $results_array2, $results_array3)); return array_merge($titles, $artists, $albums, $titles_added, $artists_added, $albums_added); } -- phpMyAdmin SQL Dump -- version 4.2.12deb2+deb8u1 -- http://www.phpmyadmin.net -- -- Host: localhost -- Erstellungszeit: 10. Aug 2016 um 17:04 -- Server Version: 5.5.44-0+deb8u1 -- PHP-Version: 5.6.23-0+deb8u1 SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO"; SET time_zone = "+00:00"; /*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */; /*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */; /*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */; /*!40101 SET NAMES utf8 */; -- -- Datenbank: `musicbox2` -- -- -------------------------------------------------------- -- -- Tabellenstruktur für Tabelle `playlist` -- CREATE TABLE IF NOT EXISTS `playlist` ( `playlist_id` int(11) NOT NULL, `track_id` int(11) NOT NULL, `song_id` int(11) NOT NULL, `votes` int(11) NOT NULL ) ENGINE=InnoDB AUTO_INCREMENT=1189 DEFAULT CHARSET=latin1; -- -------------------------------------------------------- -- -- Tabellenstruktur für Tabelle `playlists` -- CREATE TABLE IF NOT EXISTS `playlists` ( `playlist_id` int(11) NOT NULL, `name` varchar(60) NOT NULL, `created_at` datetime NOT NULL, `updated_at` datetime NOT NULL ) ENGINE=InnoDB AUTO_INCREMENT=13 DEFAULT CHARSET=latin1; -- -------------------------------------------------------- -- -- Tabellenstruktur für Tabelle `songs` -- CREATE TABLE IF NOT EXISTS `songs` ( `id` int(11) NOT NULL, `path` varchar(100) NOT NULL, `artist` varchar(60) NOT NULL, `title` varchar(60) NOT NULL, `album` varchar(50) NOT NULL, `added_at` datetime NOT NULL ) ENGINE=InnoDB AUTO_INCREMENT=4803 DEFAULT CHARSET=latin1; -- -------------------------------------------------------- -- -- Tabellenstruktur für Tabelle `users` -- CREATE TABLE IF NOT EXISTS `users` ( `userID` int(11) NOT NULL, `voices` int(11) NOT NULL, `pass` varchar(18) NOT NULL, `created_at` datetime NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1; -- -- Indizes der exportierten Tabellen -- -- -- Indizes für die Tabelle `playlist` -- ALTER TABLE `playlist` ADD PRIMARY KEY (`track_id`), ADD KEY `song_id` (`song_id`), ADD KEY `playlist_id` (`playlist_id`); -- -- Indizes für die Tabelle `playlists` -- ALTER TABLE `playlists` ADD PRIMARY KEY (`playlist_id`); -- -- Indizes für die Tabelle `songs` -- ALTER TABLE `songs` ADD PRIMARY KEY (`id`), ADD UNIQUE KEY `title` (`title`,`artist`,`album`); -- -- Indizes für die Tabelle `users` -- ALTER TABLE `users` ADD PRIMARY KEY (`userID`); -- -- AUTO_INCREMENT für exportierte Tabellen -- -- -- AUTO_INCREMENT für Tabelle `playlist` -- ALTER TABLE `playlist` MODIFY `track_id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=1189; -- -- AUTO_INCREMENT für Tabelle `playlists` -- ALTER TABLE `playlists` MODIFY `playlist_id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=13; -- -- AUTO_INCREMENT für Tabelle `songs` -- ALTER TABLE `songs` MODIFY `id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=4803; -- -- AUTO_INCREMENT für Tabelle `users` -- ALTER TABLE `users` MODIFY `userID` int(11) NOT NULL AUTO_INCREMENT; -- -- Constraints der exportierten Tabellen -- -- -- Constraints der Tabelle `playlist` -- ALTER TABLE `playlist` ADD CONSTRAINT `playlist_ibfk_1` FOREIGN KEY (`song_id`) REFERENCES `songs` (`id`) ON DELETE CASCADE, ADD CONSTRAINT `playlist_ibfk_2` FOREIGN KEY (`playlist_id`) REFERENCES `playlists` (`playlist_id`) ON DELETE CASCADE; /*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */; /*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */; /*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
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