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
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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. |