What sql librries are for c++? what is the most popular?
If you are using Visual C++, there are a lot of libraries available.
Oracle is probably the most popular.
If you're using Visual Studio, you would add a reference to System.Data.OracleClient.
...then (in your code) add
using namespace System::Data::OracleClient;
If you want to support any sql-compliant database then use ODBC, which is the oldest and most common way to access them. There are a few free c++ odbc wrapper classes, just use google and you will easily find them. Also you might want to read an odbc tutorial, which again can easily be found with google.
thanks for the answers