Metacat

/*

 * db_version -- table to store the version history of this database

 */

CREATE TABLE db_version (

  db_version_id   NUMBER(20),       -- the identifier for the version

  version         VARCHAR(250),     -- the version number

  status          NUMBER(20),       -- status of the version

  date_created    DATE,             -- the datetime on which the version was created

  CONSTRAINT db_version_pk PRIMARY KEY (db_version_id)

);

CREATE SEQUENCE db_version_id_seq;

CREATE TRIGGER db_version_before_insert

BEFORE INSERT ON db_version FOR EACH ROW

BEGIN

  SELECT db_version_id_seq.nextval

    INTO :new.db_version_id

    FROM dual;

END;

/

INSERT INTO db_version (version, status, date_created)

  VALUES ('1.8.0', 1, CURRENT_DATE);