All demo courses will be found here.
Introduction to Data Warehousing establishes a knowledgeable foundation of Data Warehousing concepts, terminologies and design methodologies to provide a candidate with an all-encompassing overview and general understanding on the subject. Try the demo.

This is the introduction to physical data warehousing using SQL as the DBMS (Database management System).  You will be learning t-SQL syntax to create, insert, select and manipulate data.

Data modelling is the formalisation and documentation of existing processes and events that occur during the application software design and development.  Data modelling techniques and tools capture and translate complex system designs into easily understood representations of the data flows and processes, creating a blueprint for construction and/or re-engineering.