This chapter contains these topics:
To understand the different types of purges
After data becomes obsolete or you need more disk space, you can use purge programs to remove data from files.
Purging data consists of:
Specifying the information to delete
Running the purge program
Running the file reorganization program to rebuild file structure
Caution:
You must know the proper procedures and consequences of purging data to avoid serious damage to your system and data.Back up the files that will be affected prior to running the purge program
Determine the data that you want to purge
| Topic | Description |
|---|---|
| Customizing a purge | You can create a customized purge by changing the DREAM Writer data selection to meet your needs.
For example, you could use a range of fiscal years rather than all dates. Custom purges are not available in the Item Deletion program, which has no processing options. |
| Processing options | You can set processing options that save tables in a special library and allow you to reorganize the purged tables. These options are very similar in all purge programs except Item Deletion and Supplemental Data. |