Compression property

Applies to
TQDB, TQDBItem, TQDBView

Declaration
property Compression : boolean;

Description
If Compression is set to true every new or modified item is saved in a compressed form. If Compression is false every new or modified item is saved in uncompressed form. Other items are unaffected.

Compression is performed on an item-by-item basis and, as such, is more effective for large items. The compression algorithm, though rapid, achieves good compression ratios on such items (especially text or bitmap data) and doesn't swell small or incompressible items.

It is also possible to compress or expand the whole QDB file.