I'm trying to make a query that return data from 4 tables, the problem comes when I try to put some aditional conditions. The query works with 4 tables with LEFT JOIN without the conditions but when I put the LIKE condition nothing change in the result. The result must be the select with "lat" that only begins with 40.95
This code it's working:
if($resultset=getSQLResultSet("SELECT name, lat, lng, description,
COALESCE(section, 0), COALESCE(AVG(score), 0) FROM places P LEFT JOIN ratings R ON P.id=R.place LEFT JOIN ratings_sections RS ON R.id=RS.rating LEFT JOIN categories C ON P.type=C.type GROUP BY P.name, RS.section ORDER BY P.name, RS.section")){
while ($row = $resultset->fetch_array(MYSQLI_NUM)){
echo json_encode($row);
}
}
But nothing change when I put the LIKE condition:
if($resultset=getSQLResultSet("SELECT name,lat, lng, description, COALESCE(section, 0), COALESCE(AVG(score), 0) FROM places P LEFT JOIN ratings R ON P.id=R.place AND P.lat LIKE '40.95%' LEFT JOIN ratings_sections RS ON R.id=RS.rating LEFT JOIN categories C ON P.type=C.type GROUP BY P.name, RS.section ORDER BY P.name, RS.section")){
while ($row = $resultset->fetch_array(MYSQLI_NUM)){
echo json_encode($row);
}
}
The SQL UNION ALL operator is used to combine the result sets of 2 or more SELECT statements.
SELECT name,lat, lng, description,... FROM
and
SELECT score FROM
Are different