16.20 - Performing Bit-Byte Operations against Arguments with Non-Equal Lengths - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Functions, Expressions, and Predicates

Product
Advanced SQL Engine
Teradata Database
Release Number
16.20
Release Date
March 2019
Content Type
Programming Reference
Publication ID
B035-1145-162K
Language
English (United States)

This topic applies only to the BITOR, BITXOR, and BITAND functions.

If the target_arg and bit_mask_arg arguments passed to these functions differ in length:

  • The target_arg and bit_mask_arg arguments are aligned on their least significant byte/bit.
  • The smaller argument is padded with zeros to the left until it becomes the same size as the larger argument.

    Teradata Database pads to the left (instead of to the right) so that the hexadecimal byte literals, serving as bit masks, will not have to be changed every time the size of a byte string is changed.