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Как создать свою функцию для PostgreSQL.
CREATE FUNCTION login2contract(varchar)
   RETURNS int4               
   AS 'select contract_id from profile where login = $1'                             
   LANGUAGE 'SQL';
CREATE FUNCTION time_minus_int(timestamp, integer)                         
   RETURNS timestamp                    
   AS 'select $1 - interval ($2) AS RESULT'                                           
   LANGUAGE 'SQL';
 
29.11.2001
Ключи: postgresql, log, time, login, file, load_average, select / Лицензия: CC-BY
Раздел:    Корень / Программисту и web-разработчику / SQL и базы данных / PostgreSQL специфика / PlPerl и PlSQL

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