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podoc:number_of_scanner_references_sql_function

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Database Function Description of "number_of_scanner_references"

Name

number_of_scanner_references

Description

Counts the number of references to a particular scanner.

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

Purpose

To retrieve the number of references to a particular scanner.

Schema

create function number_of_scanner_references(integer) returns bigint
as 'select count(photo_tech.identifier)
      from photo_tech, scanner
     where photo_tech.scanner=scanner.identifier
       and scanner.identifier = $1' language 'sql';

History

Used first

Version 2.5

Used last

Still in use

Change history

= Version 2.5 =

create function number_of_scanner_references(integer) returns bigint
as 'select count(photo_tech.identifier)
      from photo_tech, scanner
     where photo_tech.scanner=scanner.identifier
       and scanner.identifier = $1' language 'sql';
podoc/number_of_scanner_references_sql_function.1176907976.txt.gz · Last modified: 2007/04/18 10:52 by Luud