What is SQL Server clusters
Important in high availabilityhttp://www.brentozar.com/archive/2012/02/introduction-sql-server-clusters/
http://stackoverflow.com/questions/1163216/database-cluster-and-load-balancing
http://stackoverflow.com/questions/tagged/cluster-computing
Difference between identifying and non-identifying relationships
http://stackoverflow.com/questions/762937/whats-the-difference-between-identifying-and-non-identifying-relationships
Hi/Lo Algorithm
http://stackoverflow.com/questions/282099/whats-the-hi-lo-algorithm
Heaps
Tables without clustered indexes.
https://msdn.microsoft.com/en-us/hh213609.aspx
Date Warehousing
http://blogs.msdn.com/b/sqlcat/archive/2013/09/16/top-10-best-practices-for-building-a-large-scale-relational-data-warehous.aspx
Naming Conventions
http://stackoverflow.com/questions/7662/database-table-and-column-naming-conventions