Check year value : Year « Date Time « SQL / MySQL






  1. SQL / MySQL
  2. Date Time
  3. Year

Check year value

     
mysql>
mysql> CREATE   TABLE EmployeeS_Z
    ->         (EmployeeNO    SMALLINT NOT NULL,
    ->          BIRTH_DATE  DATE,
    ->          JOINED      SMALLINT NOT NULL,
    ->          CHECK(YEAR(BIRTH_DATE) < JOINED))
    -> ;
Query OK, 0 rows affected (0.00 sec)

mysql> CREATE   TABLE EmployeeS_W
    ->         (EmployeeNO    SMALLINT,
    ->          BIRTH_DATE  DATE     NOT NULL,
    ->          JOINED      SMALLINT NOT NULL,
    ->          CHECK(YEAR(BIRTH_DATE) < JOINED),
    ->          CHECK(BIRTH_DATE > '1920-01-01'),
    ->          CHECK(JOINED  < 1880));
Query OK, 0 rows affected (0.00 sec)

mysql>
mysql> drop table Employees_z;
Query OK, 0 rows affected (0.00 sec)

mysql> drop table Employees_w;
Query OK, 0 rows affected (0.00 sec)








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