* @param string $joinTable The other table.
* @param string $delVar The variable to join on, in the first table.
* @param string $joinVar The variable to join on, in the second table.
* @param string $joinTable The other table.
* @param string $delVar The variable to join on, in the first table.
* @param string $joinVar The variable to join on, in the second table.