Progress
Database Administration
Guide and Reference
Creating After-image Areas
Follow these steps to create AI areas:
- Create the structure description file for the database. See "Creating and Deleting Databases," for a complete description of how to create a structure description file.
- Define the data extents.
- Define any BI extents.
- Define any fixed-length AI extents. You must define four tokens in the file description line. Table 11–1 describes each token and what you have to enter for fixed-length files.
The following example shows a fixed-length after-image extent definition:
- Define any variable-length after-image extents. You only have to specify the first two tokens: the extent type and pathname. Unlike data or BI extents, you can define more than one variable-length after-image extent for a single database.
- Create the empty database structure using the PROSTRCT utility. For more information about the structure description file and the PROSTRCT and PROCOPY utilities, see Maintaining Database Structure."
- Create the initial database contents using the PROCOPY or PROREST utility. For more information about the PROCOPY and PROREST utilities, see Database Administration Utilities."
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