The following database characteristics are defined with ADADEF:
database name and ID
database components (Associator, Data Storage, and Work)
device type
size
checkpoint system file
database default encodings
Each database component (Associator, Data Storage, and Work) must be formatted by the ADAFRM utility before it is defined with ADADEF. The ADADEF utility may also be used to define a new Work dataset for an existing database.
Systems using the Recovery Aid feature require a recovery log (RLOG) dataset, which must first be formatted with the ADAFRM utility, and then defined using the ADARAI utility.
Adabas uses the checkpoint system file to store checkpoint data and user data provided with the Adabas CL and ET commands. It is required and must be specified using the ADADEF DEFINE (database) function.
