HASH_VALUES
The HASH_VALUES function returns the partition number of a set of values.
Also see HASHED_VALUE. For more information about partition numbers, see the DB2® Multisystem topic collection.
- expression
- An expression that returns a value of any built-in data type except date, time, timestamp, floating-point, XML, or DataLink values.
The result of the function is a large integer with a value between 0 and 1023.
If any of the arguments are null, the result is zero. The result cannot be null.
Example
- Use the HASH_VALUES function to determine what the partitions would be if
the partitioning key was composed of EMPNO and LASTNAME. This query returns the partition number for
every row in EMPLOYEE.
SELECT HASH_VALUES(EMPNO, LASTNAME) FROM EMPLOYEE