Data compression can only be specified for an output file. Key compression can be specified for an output file or the rebuild of an existing file.
The /c option operates in a similar manner to the Compiler directives DATACOMPRESS and KEYCOMPRESS.
Value | Description |
---|---|
0 | No data compression. |
1 through 127 | Reserved. |
128 through 255 | User-defined compression routines. |
Value | Description |
---|---|
0 | No key compression. |
1 | Duplicates are compressed. |
2 | Leading characters are compressed. |
4 | Leading spaces are compressed. |
8 | Trailing nulls are compressed. |
-c:d1i6
specifies data compression routine 1, and index compression of leading characters and trailing spaces.
-c:i1
specifies key compression of duplicates only.