TurboIMAGE/XL Database Management System Reference Manual MPE/iX V6.5 (30391-90011)

410 Chapter8
Using the Database Utilities
DBUNLOAD
DBUNLOAD
Copies the data entries from each data set to specially formatted tape volumes.
Operation
1
[:FILE DBUNLOAD[= filename ] [;DEV= device ] ]
2 :RUN DBUNLOAD.PUB.SYS [ ,CHAINED
,SERIAL ]
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.
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3 WHICH DATA BASE? database name [/ maint word ]
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.
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4 DATA SET m : x ENTRIES EXPECTED, x ENTRIES PROCESSED
5 END OF VOLUME n , y WRITE ERRORS RECOVERED
SAVE VOLUME ON LOGICAL DEVICE z AS n
6 DATABASE UNLOADED
END OF PROGRAM
(Refer to "Operation Discussion" later in this section.)
Parameters
filename is the name (up to 8 characters) that replaces DBUNLOAD in the mount
prompt at the operator's console.
If you want information about your data set chains without actually
performing a DBUNLOAD, supply $NULL as the
filename . This causes a
simulated unloading of the database, preventing the need to mount a tape.
device is the device class name of the device to which the data entries are to be
copied.
database name is the name of the TurboIMAGE/XL database to be unloaded.
maint word is the maintenance word defined by the database creator. This word must
be supplied by anyone other than the database creator.
Message Variables
m is the number of data sets in the database.
x is the number of entries (expected) and the number of entries processed or
copied from the specified data set.