In MySQL for example you can do updates using inner joins between tables, but you can't do this in PL/SQL. So one of the most efficient approaches in my opinion is to use the Cursor and For Loop ...

An application can use several cursors concurrently. Each cursor requires its own set of DECLARE CURSOR, OPEN, CLOSE, and FETCH statements. See "Example Cursor Program" for an example of how an ...

REF CURSOR Parameters in an OracleDataReader This example executes a PL/SQL stored procedure that returns a REF CURSOR parameter, and reads the value as an ...