[Interest] Interest Digest, Vol 91, Issue 26

Giuseppe D'Angelo giuseppe.dangelo at kdab.com
Thu Apr 18 19:07:11 CEST 2019

On 18/04/2019 16:36, Roland Hughes wrote:
> The "filter" for SQL is the WHERE clause on the SELECT statement. A 
> "filter" in the C++ world works on the result of the query. Worst case 
> it doubles the memory and transfer resources required. When the goal is 
> reduction of required resources, a filter after the fact cannot help.

The original statement said "Its not possible to make the filter part of 
the SQL query" (sic). I asked why. This is not an answer, just a 
show-off that you know how SQL filtering works.

Giuseppe D'Angelo | giuseppe.dangelo at kdab.com | Senior Software Engineer
KDAB (France) S.A.S., a KDAB Group company
Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com
KDAB - The Qt, C++ and OpenGL Experts

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