[Lazarus] data matrix with thousands of columns

ListMember listmember at letterboxes.org
Wed Apr 3 01:00:13 CEST 2013


On 2013-03-26 16:38, Andrea Mauri wrote:
> I am looking for the best option in order to store big datasets with 
> thousands of columns.
> The dataset can contains from tens to hundred thousands lines and 
> thousand of columns (some columns are string some numbers).

Have you looked at '/Synopse Big Table/'?

http://blog.synopse.info/post/2011/01/22/Synopse-Big-Table-1.12a

It is Delphi code --I have no idea whether it compiles with FPC or how 
much effort is required to do so.

But, from the sound of what it does, it seems it might be something you 
might be interested in --plus it is in Pascal.

You might also want to read this:

http://stackoverflow.com/questions/1799634/how-should-i-implement-a-huge-but-simple-indexed-stringlist-in-delphi
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