Photo Organizer

number_of_film_references

Counts the number of references for a particular film.

Tentative (is this correct?): this represents the number of photos in the database captured on the specified film.

To retrieve the number of references to a particular film.

CREATE FUNCTION number_of_film_references(INTEGER) RETURNS BIGINT
AS 'select count(photo_tech.identifier)
      from photo_tech, film
     where photo_tech.film=film.identifier
       and film.identifier = $1' LANGUAGE 'sql';

• film
• photo_tech

Version 2.5

Still in use

= Version 2.5 =

CREATE FUNCTION number_of_film_references(INTEGER) RETURNS BIGINT
AS 'select count(photo_tech.identifier)
      from photo_tech, film
     where photo_tech.film=film.identifier
       and film.identifier = $1' LANGUAGE 'sql';