Compressing Tables, Databases, and Data Types Manually Using Ferret
Use the Ferret utility command COMPRESS to compress:
After a table is compressed, rows added to the table are compressed automatically. To uncompress the data blocks manually, use the Ferret command UNCOMPRESS.
To estimate the effects of the COMPRESS or UNCOMPRESS commands before you run them, use the ESTIMATE option. The output, which is based on sampling your data, shows the estimated block size and CPU usage that will result if you run the command.
For details on the Ferret COMPRESS and UNCOMPRESS commands, see Utilities.