Institut für Astronomie und AstrophysikAbteilung AstronomieWaldhäuser Str. 64, D-72076 Tübingen, Germany |
DBCOMPRESS
Compress a .dbf database file after a call to DBDELETE
The procedure DBDELETE will remove specified entries from a database but it will not free the unused space. DBCOMPRESS will compress the .dbf file so that it only contains valid entries.
DBCOMPRESS, dbname
dbname - Name of the database to be compressed, scalar string
(1) Will not compress the index (.dbx) file. The size of the .dbx file is controlled by the MaxEntries value in the database definition (.dbd) file (2) The updated .dbf file is written in the current directory. This may need to be moved into the ZDBASE directory.
DBOPEN, DB_INFO(), FIND_WITH_DEF()
Written, W. Landsman Raytheon STX May 1998 Converted to IDL V5.0 June 1998
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