Teradata Multi Value Compression

A lgorithmic Compression (ALC), a new compression technique introduced in Teradata 13.10, is mainly designed for compressing data with well-know columns. Teradata provides a few built in ALC algorithms. For example, to compress Unicode column data Teradata provided TransUnicodeToUTF8 algorithm. Apart from that you can also develop your own ...

https://www.teradatapoint.com/teradata/algorithmic-compression-alc.htm

If you are talking about Teradata Multi Value Compression , then you only have to define the Compression values in the Column definition which you want to compress and Teradata will handle it automatically. you can try to find a tool written by a teradata colleague. The name of the tool il TSlam.

https://downloads.teradata.com/forum/general/mvc-tool

Common Rules for Both Multi - Value and Algorithmic Compression . With standard multi - value compression , there is essentially no decompression necessary to access compressed data values . Teradata Database does not need to decompress blocks or other large chunks of data to be able to access a single row or value .

https://docs.teradata.com/r/rgAb27O_xRmMVc_aQq2VGw/Bd3FuTfCH_WBx83vUN2gCQ

What is Multi value compression in Teradata? Multi value compression is a technique to apply compression on column level rather than row or block level. It is mainly developed for the column which has a large number of repeated values . MVC is ...

https://theknowledgeburrow.com/how-do-i-compress-a-column-in-teradata/

08 Sep 2016. 1. no MVC on PIs. 2. Can have MVC on as many columns as desired, no such thing as too many columns. If there is a very large number of very large values , it is possible to exceed the total space limit but it is unlikely. 3. Compression on trunc/load tables is ...

https://downloads.teradata.com/forum/database/rules-for-multi-value-compression

ExadatのHybrid Columnar Compression (HCC)とと呼ばれるカラム単位のCompress機能を Teradata では MulTi - Value Compression と呼ぶ。また機能もExadataより多い： 1．Dictionary-based Compression 頻繁に登場するパターンをDictionaryで管理し実データを持たない。 CREATE TABLE Customer

https://ichiroobata.blogspot.com/2011/01/teradata-multi-value-compression.html#!

Teradata Multivalue Compression – A Quick Approach. By Roland Wenzlofsky. March 18, 2015. PDM. Whenever you have to analyze a huge Teradata table regarding Multivalue compression , this is a costly operation from a workload point of view. Unfortunately, Teradata (the company) does not offer any tool which would allow automatizing this task.

https://www.dwhpro.com/teradata-multivalue-compression-a-quick-approach/

MVC – Multi Value Compression MVC is the magic in Teradata , regarding the efficient storage and processing. It is a “frequent value ” type simple compression . You specify those values which occurence is stored on max 8 bits (1byte), regardless of ...

https://www.prisetools.com/blog/teradata-performance-optimization-project-v-multi-value-compression

Teradata RDBMS supports a nice feature: multi value compression (aka. Teradata Compress). It enables to reduce the storage space allocated by the tables in the database, while – this is incredible – processing compressed data usually requires less resources (CPU and I/O) than the uncompressed. The feature needs no additional licence or

https://teradatatuning.blogspot.com/2013/11/optimizing-multi-value-compression.html