This is what I use when needing to do this:
1. Put all the values you want to search for in an array $vals (loop
around the first result)
2. $query = "
select count(Nome) from Aeromodelistas
where year(AnoQuota)=2005
and Sexo='Masculino' and Distrito IN ".sqlIn($vals)
;
function sqlIn($vals, $quote="'") {
if (!is_array($vals)) $vals = array($vals);
$s = '(';
$c = '';
foreach ($vals as $val) {
$s .= $c.$quote.addslashes($val).$quote;
$c = ',';
}
return $s.')';
}
Pedro Quaresma de Almeida wrote:
Hi
I have two MySQL databases, on for aeromodelistas (aeromodelling) and
another for Códigos Postais (Postal Codes). I whant to do the
following query
SELECT CódigoPostal FROM Aeromodelistas
WHERE CódigoPostal IN
(SELECT distinct(CP4) FROM codigopostal.LOCART,codigopostal.DISTRITO
WHERE codigopostal.LOCART.DD=codigopostal.DISTRITO.DD
AND codigopostal.DISTRITO.DESIG='Coimbra');
This query is not working, and I do not know why. If I try the two
queries individualy they work, togheter they don't!?
But the question I want to put to the members of this list is the
following. Is it possible to do the following?
// first do the subquery
$sql_CP4s = "select distinct(CP4) from
codigopostal.LOCART,codigopostal.DISTRITO where
codigopostal.LOCART.DD=codigopostal.DISTRITO.DD and
codigopostal.DISTRITO.DESIG='$nomeDistrito'";
$resultado_CP4s = mysql_query($sql_CP4s,$ligacao);
$linha_CP4s = mysql_fetch_assoc($resultado_CP4s);
// then use it's results in the main query
$sql_Aero_Dist_Masc = "select count(Nome) from Aeromodelistas where
year(AnoQuota)=2005 and Sexo='Masculino' and Distrito IN $linha_CP4s";
How can we include the results (not just one) of one query in another
query?
Is it possible?
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