SQL: Build Complex SQL Queries by Andy Vickler Paperback Book

C++: C++ Common used Libraries by Vickler, Andy [Paperback]

SQL: Advanced SQL Query optimization techniques by Vickler, Andy [Paperback]

R Programming: R Data Analysis and Statistics by Vickler, Andy [Paperback]

SQL: Learn SQL Basics For Beginners by Vickler, Andy [Paperback]

R Programming: R Basics for Beginners by Vickler, Andy [Paperback]

Cobol: Cobol Database Interaction by Vickler, Andy [Paperback]

PHP: Advanced PHP functions by Vickler, Andy [Paperback]