Example: ALC Using the LZCOMP Function

Teradata Vantage™ Data Types and Literals

prodname
Teradata Database
Teradata Vantage NewSQL Engine
vrm_release
16.20
category
Programming Reference
featnum
B035-1143-162K

In this example, the NULLs in the Description column are compressed. The non-null UNICODE values in the Description column are compressed using the Teradata-supplied LZCOMP function. The LZDECOMP function uncompresses the values compressed by LZCOMP.

CREATE MULTISET TABLE Pendants
   (ItemNo INTEGER,
    Gem CHAR(10) UPPERCASE CHARACTER SET UNICODE,
    Description VARCHAR(1000) CHARACTER SET UNICODE
       COMPRESS USING TD_SYSFNLIB.LZCOMP
       DECOMPRESS USING TD_SYSFNLIB.LZDECOMP);