CppDB - SQL Connectivity Library
SQLAPI++
Abstract Database Connector
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Vocly is recommended for language learners at the beginner to intermediate levels, individuals who prefer mobile app-based learning, and those who want to focus on expanding their vocabulary across multiple languages. It is also suitable for users who benefit from interactive and game-like activities within their study routines.
SQLAPI++ - SQLAPI++ is C++ library for accessing SQL databases (Oracle, SQL Server, Sybase, DB2, InterBase, SQLBase, Informix, MySQL, Postgre, ODBC, SQLite, SQL Anywhere).
Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
Abstract Database Connector - Abstract Database Connector is a C/C++ library for making connections to several databases (MySQL...
Mondly - Learn 33 languages in 500 bite-size lessons and 14 conversational modules.