Attempts to uncover match up the rows from the initial table to rows in the next table. If it may’t find a match, it will return the columns from the main desk and go away the columns from the 2nd table blank (null). Theta-join is analogous to the Particular circumstance https://christopherw580hns0.webdesign96.com/37034322/how-to-join-a-outlaw-motorcycle-club-fundamentals-explained