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#SqlServer Interview question: What is Usage Based Optimization in SSAS? How is it performed?

Usage Based Optimization is the process of defining aggregation design based on the actual queries executed by the users/applications accessing the cube, which is captured using a log. Continue reading #SqlServer Interview question: What is Usage Based Optimization in SSAS? How is it performed?

.Net Interview question: What is LINQ?

Language Integrated Query (LINQ) adds the ability to query objects using .NET languages. The LINQ to SQL object/relational mapping (O/RM) framework provides the following basic features: Continue reading .Net Interview question: What is LINQ?

#Thresqlips series #XML, Auto & Path – Episode 2

Welcome back to the weekly #thresqlips¬†series comprising of three sql tips, definitions or “must-know”‘s that should be part of your database development vocabulary: Continue reading #Thresqlips series #XML, Auto & Path – Episode 2

SSAS Interview question: What are aggregates? What is the purpose of defining an aggregation design in Analysis Services?

Aggregates are summarized values, each of which corresponds to a combination of an attribute from each dimension and a measure group. An aggregate in SSAS is the differentiating factor between OLAP and OLTP, and is the fundamental principle of SSAS/OLAP, which offers blazing fast performance. Continue reading SSAS Interview question: What are aggregates? What is the purpose of defining an aggregation design in Analysis Services?

Sql Server Interview questions: What is the XML datatype?

 

The XML datatype holds and understands valid XML streams pretty much the same way that integers hold numbers with no decimal points, varchars hold strings of varying length, and the Geography datatype holds a position on the earth.  Continue reading Sql Server Interview questions: What is the XML datatype?