Il vous suffit de préciser sur quelles tables appliquer le DELETE
.
Supprimer uniquement le deadline
lignes :
DELETE `deadline` FROM `deadline` LEFT JOIN `job` ....
Supprimer le deadline
et job
lignes :
DELETE `deadline`, `job` FROM `deadline` LEFT JOIN `job` ....
Supprimer uniquement le job
lignes :
DELETE `job` FROM `deadline` LEFT JOIN `job` ....