The Extract dialog generates JCL that runs the Extract (IXB) function.
This function extracts all segments or selected segments from a database,
and saves them to a sequential data set. You can edit the JCL and
IXB input parameters before you submit the job, or you can create
your own batch job to run the Extract function.
Usage notes
The Extract JCL generated by FM/IMS has the
following flows: Figure 1. Flows for Extract (IXB) step
FMN1JIN
Points to the FM/IMS skeleton
library. This DD statement is only used when you extract data from HALDB
databases.
FMNIMSIN
Contains the control statements for the Extract.
These control statements are discussed below.
REPORT
Defines the
output data set for the Database Extract Summary report.
IMS database data sets
In DLI mode, FM/IMS includes
DDs for each of the IMS database data sets associated with the IMS database being
extracted. If the database has logical relationships, the data sets for the
logically related databases also need to be included.
UNLOAD
Defines the output data set for the IMS segments that the
function extracts. For the file layout, see
Extract data layout.
SYSPRINT
Defines the
output data set for the messages that the Extract issues.
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