Solved

compress for large tables

Posted on 2011-09-08
3
418 Views
Last Modified: 2013-11-16
Hi,
We want to compress huge tables to save space how can we do that and how can we determine if compress worked.

Thanks,
0
Comment
Question by:sam2929
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 11

Accepted Solution

by:
theartfuldazzler earned 500 total points
ID: 36502010
Hi

For large tables, where there is a lot of character variables,

use:

OPTIONS COMPRESS=CHAR;

For large tables, that mostly consist of numeric data, use:

OPTIONS COMPRESS=BINARY;


Note - you can also specifify this as a DATA step option:

DATA test(COMPRESS=CHAR);

The compression will be noted in the LOG after the DATA STEP has run.
0
 

Author Comment

by:sam2929
ID: 36502597
ok  any idea where to do compress in di studio on tables
0
 
LVL 7

Expert Comment

by:d507201
ID: 36502918
The Options Tab in a Loader Properties Dialog Box in SAS Data Integration Studio is used to control Compression.  Use the Additional System Options field to set the COMPRESS= system option.


COMPRESS can be invoked at initialization and in the autoexec.sas, in addition to the Options statement and as a dataset option.
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Creating and Managing Databases with phpMyAdmin in cPanel.
Shadow IT is coming out of the shadows as more businesses are choosing cloud-based applications. It is now a multi-cloud world for most organizations. Simultaneously, most businesses have yet to consolidate with one cloud provider or define an offic…
Video by: Steve
Using examples as well as descriptions, step through each of the common simple join types, explaining differences in syntax, differences in expected outputs and showing how the queries run along with the actual outputs based upon a simple set of dem…
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question