Hello @ll,
I have a small question. Table A NrWorker ineger Name Active 0 or 1 . Table B NrWorker integer Year Month ValueWorkerMonth Now I would like to get all NrWorker from Table A with Active 1 and the ValueWorkerMonth from the Table B (from the current month) This is like Select a.nrworker, b.valueworkermonth from table A left join table B on a.nrworker = b.nrworker where a.active = 1 and b.year = 2017 and b.month = 4 Fine, but I would like also all Worker (NrWorker from Table A) where are not present in Table B in this month. Table A NrWorker 12 NrWorker 13 NrWorker 14 Table B NrWorker 12 Year 2017 Month 4 I would like to get not only Worker 12, rather 13 and 14 too. How can I realize it in Firebird? Thank you
