From: | Jhonny Velasquez c(dot) <jhon_vels(at)hotmail(dot)com> |
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To: | <pgsql-es-ayuda(at)postgresql(dot)org> |
Subject: | consulta de campos con fechas |
Date: | 2009-03-31 15:25:35 |
Message-ID: | SNT102-W62C2CB3A0571FB045D6BD99F8A0@phx.gbl |
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Lists: | pgsql-es-ayuda |
puedo hacer esta consulta en postgres?
son campos de tipo date, de los cuales quiero extaer el mes y año directamente en la consulta sql.
el formato es 2007-07-04
$sql=pg_query($link,"SELECT MONTH(ps.iniciogestion) AS mesinicio, YEAR(ps.iniciogestion) AS anioinicio, DATEDIFF(ps.iniciogestion,ps.finalgestion) AS duracion, MONTH(ps.finalgestion) AS mesfinal, YEAR(ps.finalgestion) AS aniofinal FROM programasedes AS ps");
pero me da este error
Warning: pg_query() [function.pg-query]: Query failed: ERROR: function month(date) does not exist LINE 1: ...MONTH(ps.i... ^ HINT: No function matches the given name and argument types. You might need to add explicit type casts. in E:\AppServ\www\finanzas\includes\sqldatabase.php on line 37
saludos y gracias por su tiempo
Jhonvels
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