How to narrow SQL search with multiple criterias?

william humphrey bill at bluewatermaritime.com
Tue Jan 25 10:54:39 CST 2011


Sometimes, SQL failure that I am, I just dump it all in a variable and look
through it using LiveCode. It depends how big although LiveCode is pretty
quick.

On Tue, Jan 25, 2011 at 9:07 AM, Tiemo Hollmann TB <toolbook at kestner.de>wrote:

> Hello,
>
> I have seen this feature before, but have no idea what approach is behind
> the scenes since I am not that deep in SQL.
>
> I have a SQL select with multiple search criterias. After selecting a
> criteria, I get the resulting records and can go on narrowing my search
> with
> selecting one or multiple other criterias. So far nothing special. What I
> am
> interested in is, how do you show (and disable) one or multiple search
> criterias, if they would be inaffective for further searches, because there
> is no content left to narrow the search with this criteria.
>
>
>
> I could think of looping through the result for each criteria after having
> made one selection and if there is nothing left to search for then disable
> the search criteria. But with multiple search criterias, each with multiple
> options, I don't know if this would be "state of the art" to keep a good
> performance, or if there are more sophisticated approaches to let the user
> just make click-click-click narrowing his search with simultaneous showing,
> what other selection makes sense and what not.
>
>
>
> Hoping you understood what I mean J
>
> Thanks for any idea
>
> Tiemo
>
>
>
>
>
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