WordPress database

WORDPRESS MEETUP CEBUOCT. 5 ,2013

Tuesday, October 8, 13

HOW WORDPRESS WORKS


HOW WORDPRESS WORKS


HOW WORDPRESS WORKS


HOW WORDPRESS WORKS


HOW WORDPRESS WORKS


HOW WORDPRESS WORKS


HOW WORDPRESS WORKS


HOW WORDPRESS WORKS


HOW WORDPRESS WORKS


HOW WORDPRESS WORKS


HOW WORDPRESS WORKS


QUICK TOUR TO WORDPRESSDATABASE



WHY WOULD I USE WPDB?



1. custom database queries



1. custom database queries2. when using a plugin



1. custom database queries2. when using a plugin3. simplifying and optimizing server loads



1. custom database queries2. when using a plugin3. simplifying and optimizing server loads4. it’s easy to maintain and flexible



1. custom database queries2. when using a plugin3. simplifying and optimizing server loads4. it’s easy to maintain and flexible5. makes you a better WP developer


WORDPRESS DATABASEWORDPRESS DATABASE CLASS - WPDB

codex.wordpress.org/Function_Reference/wpdb_Class




C

R

U

D




C

R

U

D

reate




C

R

U

D

reate

read




C

R

U

D

reate

read

pdate




C

R

U

D

reate

read

pdate

elete


CREATE$wpdb->insert( ! 'table', ! array( ! ! 'column1' => 'value1', ! ! 'column2' => 123 ! ), ! array( ! ! '%s', ! ! '%d' ! ) );


READ$mypost = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID = 10");

echo $mypost->post_title;


UPDATE$wpdb->update( ! 'table', ! array( ! ! 'column1' => 'value1',!// string! ! 'column2' => 'value2'!// integer (number) ! ), ! array( 'ID' => 1 ), ! array( ! ! '%s',! // value1! ! '%d'!// value2! ), ! array( '%d' ) );


DELETE

// Default usage.$wpdb->delete( 'table', array( 'ID' => 1 ) );

// Using where formatting.$wpdb->delete( 'table', array( 'ID' => 1 ), array( '%d' ) );


QUESTIONS?Feel free to ask anything regarding WordPress or web

development in general.


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WordPress database