Does anyone know why in Oracle 11g when you do a Count(1) with more than one natural join it does a cartesian join and throws the count way off? Such as SELECT Count(1) FROM record NATURAL join address NATURAL join person WHERE status=1 AND code = 1 AND state = 'TN' This pulls back like 3 million rows when SELECT * FROM record NATU...
I'm not sure what kind of join I need as I'm not familiar with trying to overlap data in such a way or if it's even feasible. I have two tables which both share a similar set of data and are both related to a 3rd parent table thru Room_id. I have a table called Room_rates which stores average prices for each room (room_id) +-------+--...
When we use Natural Join, we are joining the tables when both table have the same column names. But what if we write it in PHP and then the DBA add some more fields to both tables, then the Natural Join can break? The same goes for Insert, if we do a insert into gifts values (NULL, "chocolate", "choco.jpg", now()); then it will bre...