基于Condition的Sql查询结果

Question

I have two put two condition in the result of a sql query result for the below function:

1. Table projects has two columns a_name and b_name and I want to exclude result in which b_name has value = xxxxx and value in a_name and b_name are same.

Below is currently used:

public function search_project_name($term)
{
    $params = array( ':term' => $term);
    $sql = "SELECT * FROM projects WHERE project_name like '%$term%'ORDER BY projects.create_date DESC $limit";
    $stmt = parent::query($sql, $params);
    while($row = $stmt->fetch(PDO::FETCH_ASSOC)) :
        $result[]=$row;
    endwhile;
    return $result;
}

Answer 1

You could add these condition with a not operator:

SELECT * 
FROM   projects 
WHERE  a_name like '%$term%' AND
       NOT (a_name = 'xxxx' and a_name = b_name)

Answer 2

Problem part is $term in query so replace $term with :term try updated code:

public function search_project_name($term){
  $params = array(
    ':term'=>$term);
  $sql = "SELECT * FROM projects WHERE project_name like '%:term%'ORDER BY projects.create_date DESC $limit";
  $stmt = parent::query($sql, $params);
  while($row = $stmt->fetch(PDO::FETCH_ASSOC)) :
    $result[] = $row;
  endwhile;
  return $result;
}

One more missing parameter is $limit you used in query but not passed to function?

With $limit as 2nd parameter default set to 10 rows:

public function search_project_name($term, $limit = 10){
  $params = array(
    ':term'=>$term);
  $sql = "SELECT * FROM projects WHERE project_name like '%:term%'ORDER BY projects.create_date DESC $limit";
  $stmt = parent::query($sql, $params);
  while($row = $stmt->fetch(PDO::FETCH_ASSOC)) :
    $result[] = $row;
  endwhile;
  return $result;
}