How do I delete blank rows in Mysql?

Question

I do have a table with more than 100000 data elements, but there are almost 350 blank rows within. How do I delete this blank rows using phpmyadmin? Manually deleting is a tedio

Answer 1

I know this has already been answered and has got a tick, but I wrote a small function for doing this, and thought it might be useful to other people.

I call my function with an array so that I can use the same function for different tables.

$tableArray=array("Address", "Email", "Phone"); //This is the column names
$this->deleteBlankLines("tableName",$tableArray);

and here is the function which takes the array and builds the delete string

private function deleteBlankLines($tablename,$columnArray){
    $Where="";
    foreach($columnArray as $line):
        $Where.="(`".$line."`=''||`".$line."` IS NULL) && ";
    endforeach;
    $Where = rtrim($Where, '&& ');  
    $query="DELETE FROM `{$tablename}` WHERE ".$Where;
    $stmt = $this->db->prepare($query);
    $stmt->execute();
}

You can use this function for multiple tables. You just need to send in a different table name and array and it will work.

My function will check for a whole row of empty columns or NULL columns at the same time. If you don't need it to check for NULL then you can remove that part.