RE: [PHP-DB] store an array in a mysqldb
If you are setting up a true relational database, arrays would be stored in a seperate table with a unique key. Each part of the array would be a seperate row. This is called normalization. If you are doing it for fun, then you could place some type of seperator (like a comma, semicolon, etc) between each array field. Here is an example: FATHER TABLE: COLUMNS:FIRST_NAME LAST_NAME AGE A father can have many children which would be your array. An Array is really a repeating group of information. CHILD TABLE: COLUMNS:FATHER_FIRST_NAME FATHER_LAST_NAME CHILD_FIRST_NAME CHILD_LAST_NAME CHILD_TITLE Your tables could have the following information: FATHER TABLE: FIRST_NAME LAST_NAME AGE johndoe 39 sam green 44 CHILD TABLE: FATHER_FIRST_NAME FATHER_LAST_NAMECHILD_FIRST_NAME CHILD_LAST_NAME TITLE johndoe robert doe [spaces] johndoe jennifer doe [spaces] johndoe sam doe [spaces] sam green sam green jr sam green kelly green [spaces] The index on the child table would be every column to make it unique. If you want to select each child for john doe, your query would look like this: select child_first_name,child_last_name_title from child where father_frist_name = 'john' and father_last_name = 'doe'; This is a very simiplified example. You would need to taylor it for your own needs. -Original Message- From: Jeroen van Bussel [mailto:[EMAIL PROTECTED]] Sent: Thursday, August 30, 2001 10:43 To: [EMAIL PROTECTED] Subject: [PHP-DB] store an array in a mysqldb I would like to know if it is somehow possible to store an array in a mysql DB. Could somebody please help me. greetz Jeroen -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP-DB] store an array in a mysqldb
Nothing comes to mind that isn't a bit of a "hack" really. You could try seperating the data with delimiters before putting it in, then splitting the data back up into an array at query time. You could setup some tables, one called 'arrays' and one called 'array_values". Arrays would pretty much be one column -- just the id. Array_values would be 4 columns (3 if order doesn't matter) with: array_value_id, array_id, value, sequence (optional). However, I should probably note last I knew PostgreSQL supports the insertion of arrays into a record natively... though I have never personally used it. Justin Buist Trident Technology, Inc. 4700 60th St. SW, Suite 102 Grand Rapids, MI 49512 Ph. 616.554.2700 Fx. 616.554.3331 Mo. 616.291.2612 On Thu, 30 Aug 2001, Jeroen van Bussel wrote: > I would like to know if it is somehow possible to store an array in a mysql > DB. > > Could somebody please help me. > > greetz Jeroen > > > > -- > PHP Database Mailing List (http://www.php.net/) > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > To contact the list administrators, e-mail: [EMAIL PROTECTED] > -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP-DB] store an array in a mysqldb
I would like to know if it is somehow possible to store an array in a mysql DB. Could somebody please help me. greetz Jeroen -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
