i never heard of it called an "elevator". I anyways heard "thumb"
On Mon, Mar 25, 2024 at 2:08 PM Bob Sneidar via use-livecode < use-livecode@lists.runrev.com> wrote: > I’ve thought about that. A temporary memory database would not appear to > the user to be faster, as the initial query for a large dataset will happen > all at once during which Livecode would be unresponsive. And if you page > the queries from the live database, re-storing the data in a memory > database would just be added time. > > You could use send in time to cache forward and backwards a few pages, and > in that case a memory database could help, but if the user drags the > elevator box (how many people know what THAT is) then you go back to square > 1 concerning efficiency. > > Bob S > > > > On Mar 25, 2024, at 10:34 AM, Mike Kerner via use-livecode < > use-livecode@lists.runrev.com> wrote: > > > > i would be curious to know if an in-memory sqlite db increases scroll > speed > > with dg's. > > basically, you would live load the dg with pages from the db. > > i can't imagine that the dg is faster than the pg. everything i've tried > > with the pg is faster than the dg. > > just one more reason to resurrect the script compiler and release it. > > > > On Mon, Mar 25, 2024 at 11:16 AM Bob Sneidar via use-livecode < > > use-livecode@lists.runrev.com> wrote: > > > >> I wrote a findInArray() function that will convert an array to a memory > >> based SQL database, and one of the arguments is the SQL query statement > to > >> use on the database. I have another called FilterArray() which simply > >> iterates through the keys to output those matching a criteria. > >> > >> Bob S > >> > >>> On Mar 24, 2024, at 2:22 PM, Neville Smythe via use-livecode < > >> use-livecode@lists.runrev.com> wrote: > >>> > >>> > >>>> On 25 Mar 2024, at 3:00 am,Mike Kerner wrote: > >>>> > >>>> i don't know if you dove into the code, but it's too early to think > >> about > >>>> unpacking this, so here's the code: ... > >>> > >>> Thanks Mike > >>> > >>> While I was aware of the optional parameters feature of LC commands I > >> have never used it I so was unfamiliar with the syntax. The penny had > never > >> dropped that the parameter list for a command is just an array, so > >> evidently you can actually send an array instead of a comma delimited > list > >>> > >>> Which means that you can send FindIndex a single parameter pKeyPairsA > >> which is an array with alternating colName,searchStr values > >>> > >>> Setting up such an array is not particularly convenient for coding > >> however. My workaround had been to use a custom function hack > >>> > >>> function myFindIndex pDataGrid, pKeyPairs > >>> — pKeyPairs is a comma delimited list such as > >> “colname1,str1,colname2,str2,..” > >>> > >>> replace comma with quote & comma & quote in pKeyPairs > >>> put “dispatch FindIndex to” && pDataGrid && “with” && quote & > >> pKeyPairs & quote into tCommandStr > >>> do tCommandstr > >>> put the result into tFoundIndex > >>> ... > >>> > >>> A much more elegant (if probably no faster) solution is > >>> > >>> function myFindIndex pDataGrid, pKeyPairs > >>> — pKeyPairs is a comma delimited list such as > >> “colname1,str1,colname2,str2,..” > >>> > >>> set the columnDelimiter to comma > >>> split pKeyPairs by column > >>> dispatch “FindIndex" to pDataGrid with pKeyPairs > >>> put the result into tFoundIndex > >>> ... > >>> > >>> > >>> BTW, where did you find the source code for DataGrid handlers? I now > see > >> how one could write a FindIndices function to return all indices rather > >> than just the first found … or even a general WHERE search :-) > >>> > >>> Neville Smythe > >>> > >>> > >>> > >>> > >>> _______________________________________________ > >>> use-livecode mailing list > >>> use-livecode@lists.runrev.com > >>> Please visit this url to subscribe, unsubscribe and manage your > >> subscription preferences: > >>> http://lists.runrev.com/mailman/listinfo/use-livecode > >> > >> _______________________________________________ > >> use-livecode mailing list > >> use-livecode@lists.runrev.com > >> Please visit this url to subscribe, unsubscribe and manage your > >> subscription preferences: > >> http://lists.runrev.com/mailman/listinfo/use-livecode > >> > > > > > > -- > > On the first day, God created the heavens and the Earth > > On the second day, God created the oceans. > > On the third day, God put the animals on hold for a few hours, > > and did a little diving. > > And God said, "This is good." > > _______________________________________________ > > use-livecode mailing list > > use-livecode@lists.runrev.com > > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > > http://lists.runrev.com/mailman/listinfo/use-livecode > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > -- On the first day, God created the heavens and the Earth On the second day, God created the oceans. On the third day, God put the animals on hold for a few hours, and did a little diving. And God said, "This is good." _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
