
// CF 7-18

// Incumbents table

CREATE TABLE Incumbents (
                        SSN             integer,
                        PCN             integer,
                        StartDate       date,
                        EndDate         date,
                        PRIMARY KEY (SSN, PCN)
                        );

// Actual modifications

DELETE
  FROM Incumbents
 WHERE SSN = 111223333
   AND PCN = 341288
   AND StartDate <= DATE '12/31/1997'
   AND DATE '01/01/1997' < EndDate;

