RJS Graph
LabPlot
SciDaVis
DataMelt
Aveloy Graph
DPlot
IGOR Pro
OriginPro
SQLAPI++
Abstract Database Connector
CppDB - SQL Connectivity Library
dotConnect
RJS GraphLabPlot - LabPlot is a KDE-application for interactive graphing and analysis of scientific data.
Abstract Database Connector - Abstract Database Connector is a C/C++ library for making connections to several databases (MySQL...
SciDaVis - SciDAVis is a free application for Scientific Data Analysis and Visualization.
CppDB - SQL Connectivity Library - CppDB is an SQL connectivity library that is designed to provide platform and Database independent connectivity API similarly to what JDBC, ODBC and other connectivity libraries do. http://cppcms.com/sql/cppdb/
DataMelt - DataMelt (DMelt), a free mathematics and data-analysis software for scientists, engineers and students.
dotConnect - Ultimate solution for developing data-related .NET applications