Se> (Commonly "join", but See alSo "outer join") A relational databaSe operation which SelectS rowS from two tableSSuch that the value in one column of the firSt table alSo appearS in a certain column of the Second table. An example in SQL: Select * from A, B where A.x = B.y The column nameS (x and y in thiS example) are often, but not neceSSarily, the Same. (1998-11-23)