The c_cat.sql command file

The following command file creates the catalog table. It contains a constraint, aa, which allows you to practice with cascading deletes by running the SQL statements in the alt_cat.sql and del_stock.sql command files on a database with logging.

CREATE TABLE catalog
   (
   catalog_num      SERIAL(10001),
   stock_num        SMALLINT NOT NULL,
   manu_code        CHAR(3) NOT NULL,
   cat_descr        TEXT,
   cat_picture      BYTE,
   cat_advert       VARCHAR(255, 65),
   PRIMARY KEY (catalog_num),
   FOREIGN KEY (stock_num, manu_code) REFERENCES stock 
      CONSTRAINT aa
   );