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Re: Inserting multiple lines into table
Posted by: Hartmut Holzgraefe
Date: June 26, 2008 03:47AM

Why 5 forms? Really independent <form> blocks or just 5 <input type="file"...> fields within one form?

If it is just one form inserting should be as easy as

INSERT INTO table SET artist="$artist", album="$album", track="$track1" ...

repeated 5 times or a multi insert:

INSERT INTO table (artist, album, track, length)
VALUES ("$artist", "$album", "$track1", "$length1")
, ("$artist", "$album", "$track2", "$length2")
, ("$artist", "$album", "$track3", "$length3")
, ("$artist", "$album", "$track4", "$length4")
, ("$artist", "$album", "$track5", "$length5");

But i think you already see the problem: you have to repeat $artist and $album all the time as your table is not normalized ...

You'd be better of with three separate tables for artist, album and track:

id int primary key auto_increment,
name varchar(100)

id int primary key auto_increment,
artist_id int,
name varchar(100)

id int primary key auto_increment,
album_id int,
name varchar(100),
length time

Now to add a completely new artist, album and track you would

INSERT INTO artist (name) VALUES ("$artist");
$artist_id = mysql_insert_id();
INSERT INTO album (artist_id, name) VALUES ($artist_id, "$album");
$labum_id = mysql_insert_id();
INSERT INTO track (album_id, name, length) VALUES ($album_id, "$track1", "$length1");
INSERT INTO track (album_id, name, length) VALUES ($album_id, "$track2", "$length2");

and for existing artists and albums you'd look them up by name or present select boxes to the user right away that return the appropriate artist and album ids to you and only have users add new artists and albums if these are not yet in your system ...

Hartmut Holzgraefe, MySQL Regional Support Manager EMEA

Sun Microsystems GmbH, Sonnenallee 1, 85551 Kirchheim-Heimstetten
Amtsgericht Muenchen: HRB161028
Geschaeftsfuehrer: Thomas Schroeder, Wolfgang Engels, Dr. Roland Boemer
Vorsitzender des Aufsichtsrates: Martin Haering

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Re: Inserting multiple lines into table
June 26, 2008 03:47AM

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