php: denkaufgabe!
Verfasst: 16.09.2004 18:29
Hi you developers,
please help me to MOVE A GENRE in the following table. i have a mysql-table like this ( I cannot change the table, it's not my project!!):
that means: Alternative General, Art Rock, ... are sub-genres of the "Alternative"-genre.
i.e. i want to move the genre "Comedy" with the id "cb" to be a child of "Alternative" with the id "a".
does anybody have an idea to manage this with a few queries? the problem is, if i change the id of a genre, i have to change this genre-id in thousands of tracks and albums.
the genre-names of each sub-genre should by ordered by the alphabet ascending, so that the example would look like this:
any ideas? pleas help!
mfg phil
please help me to MOVE A GENRE in the following table. i have a mysql-table like this ( I cannot change the table, it's not my project!!):
Code: Alles auswählen
mysql> select id, genre from genre limit 16;
+----+---------------------+
| id | genre |
+----+---------------------+
| b | Alternative |
| ba | Alternative General |
| bb | Art Rock |
| bc | Avant Rock |
| bd | Experimental |
| bh | Grunge |
| bi | Indie |
| bm | Unclassifiable |
| bn | Crossover |
| c | Books & Spoken |
| ca | Short Stories |
| cb | Comedy |
| cc | Musicals/Broadway |
| cd | Poetry |
| ce | Cabaret / Satire |
| cf | Religion |
+----+---------------------+
16 rows in set (0.00 sec)i.e. i want to move the genre "Comedy" with the id "cb" to be a child of "Alternative" with the id "a".
does anybody have an idea to manage this with a few queries? the problem is, if i change the id of a genre, i have to change this genre-id in thousands of tracks and albums.
the genre-names of each sub-genre should by ordered by the alphabet ascending, so that the example would look like this:
Code: Alles auswählen
...
| b | Alternative |
| ba | Alternative General |
| bb | Art Rock |
| bc | Avant Rock |
| bd | Comedy |
| be | Experimental |
| bh/bf | Grunge |mfg phil
