There are too many to list them all, especially without a more definite idea of what you are actually looking for. The Boost libraries are probably a good first stop. For the rest, you'll have to tell us what features or particular application domain you are looking at (and RogueWave SourcePro C++ seems pretty general, like Boost).
STL & collections,
Date time manipulation, etc.
You don't even need an external library for these things. The new C++ standard (C++11) has all these features as part of the standard library. You have to get bleeding-edge compilers to use it. Otherwise, the Boost libraries provide all those functionalities and more as well:
That's a whole different story. There are a number of different database server types and protocols, and that's really not my field, so I don't know what to recommend. Certainly, none of the above-mentioned libraries do that.
Dim Adapter As New OleDbDataAdapter
Dim Command As New OleDbCommand
Dim xFrom As String = dtpFrom.Value.ToString.Substring(0, dtpFrom.Value.ToString.IndexOf(" "))
Dim xTo As String = dtpTo.Value.ToString.Substring(0, dtpTo.Value.ToString.IndexOf(" "))
sqlQuery = MainQuery ...