|FAQ FOR WINDEV, WEBDEV|
AND WINDEV MOBILE
|FAQ #2581, published on 2002-10-15|
|When is it preferable to use a filter over a query? |
|If the filter condition contains OR's or <> conditions, use a query. |
File reading will be reduced to a minimum because HF chooses
automatically the best browsing key, and this key might change during
the entire execution of the query in order to read the least
number of records possible.
If the condition contains neither OR nor <>, the number of readings will
be the same as for a filter, a view or a query.
|Informations contained on this site are the exclusive property of PC SOFT. These informations and logos CANNOT be copied and/or used without a written authorization from PC SOFT. |
© PC SOFT 2004-2018.