The Uncompression utility
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The Uncompression utility
With the Uncompression utility, you can expand a compressed database file
created by the Compression utility. The Uncompression utility reads the
compressed file and restores the database file to its uncompressed state.
You can access the Uncompression utility in the following ways:
♦ From Sybase Central
♦ From the system command line, using the
dbexpand
command-line
utility. This is useful for incorporating into batch or command files.
Uncompressing a database in Sybase Central
v To uncompress a compressed database file:
1 Open the Utilities folder in the left panel.
2 Double-click Uncompress Database in the right panel. The Uncompress
wizard appears.
3 Follow the instructions in the wizard.
Tip
You can also access this wizard by clicking Tools➤Adaptive Server
Anywhere➤Uncompress Database.
The dbexpand command-line utility
dbexpand [
switches
]
compressed-database-file
[
database-file
]
Switch Description
–o filename Log output messages to a file
–q
Operate quietly—do not print messages
–y
Erase an existing output file without confirmation
The input filename extension defaults to
cdb
. The output filename (with
extension) must not have the same name as the input filename (with
extension).
Syntax
Description
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