4.1.11. Exception passing

  • Beginnings of PL I/O
  • CREATE TABLE temp (logmessage varchar(80));
    • Can create transfer/bridge relation outside


  • Within block (e.g. within exception handler)
    • WHEN invalid_age THEN
      • INSERT INTO temp VALUES( ‘Cannot have negative ages’);
    • END;


    • SELECT * FROM temp;
      • To review error messages