Question

I have a database containing 3 tables (member, boat, boatType) and in the method below two of them is affected. What I want is to list all boats that’s registered on a member, but there’s a problem with the code (at least with the SQL, but I suspect that’s not all).

Thanks in advance.

boatHandler.php:

public function GetMembersBoats($memberId) {

    $query = "SELECT b.boatId, b.length, bt.type
                  FROM boat AS b
                      INNER JOIN member AS m
                          ON b.memberId = m.memberId
                              WHERE m.memberId = ?
                      INNER JOIN boatType AS bt
                          ON b.boatTypeId = bt.boatTypeId
                      GROUP BY b.boatId";

    $stmt = $this->m_db->Prepare($query);
    $stmt->bind_param('i', $memberId);

    $boats = $this->m_db->GetBoats($stmt);
}

database.php:

public function GetBoats($stmt) {
    $boats = array(
            0 => array(),
            1 => array(),
            2 => array()
        );

    $stmt->execute();

    $stmt->bind_result($boatId, $length, $type);

    while ($stmt->fetch()) {
        array_push($boats[0], $boatId);
        array_push($boats[1], $length);
        array_push($boats[2], $type);
    }

    $stmt->Close();

    return $boats;
}

Affected tables:

• boat: boatId, boatTypeId, length, memberId
• boatType: boatTypeId, type

Answer 1

The WHERE clause has to be listed after the table references. You have to move the WHERE m.memberId = ? to the end of the table references after the FROM and JOINs like so:

SELECT b.boatId, b.length, bt.type
FROM boat AS b
      INNER JOIN member AS m
          ON b.memberId = m.memberId

      INNER JOIN boatType AS bt
          ON b.boatTypeId = bt.boatTypeId
WHERE m.memberId = ?
GROUP BY b.boatId