
Explore the difference between OLTP and OLAP, define data warehouse concepts, and learn ETL with SSIS to load fact and dimension tables, enabling MDX-based reporting.
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In this video lesson i have explained what is Hierarchy, how to create hierarchy and what is the purpose of Hierarchy
In this video you will learn terminologies used in MDX such as
Dimension, Attribute or Attribute Hierarchy , User Defined Attribute Hierarchy, Members ,Children,Level,Measure Group and Measure.
I will also write first MDX command in this video
In this video you will learn how to modify an existing cube which means how you will be going to add Measures and Dimensions into an existing cube.
Explore advanced MDX concepts using sets and tuples to combine measures like sales amount with calendar year, handle nulls with non empty, and distinguish cross join from union.
Learn how to represent members as key or name in MDX, using the ampersand to toggle representations, with Australia as a key and Germany in a set.
Explore the MDX having and where clauses to filter data. Learn that where filters the cube before the result set, while having filters the result set after its creation.
Learn to use the filter condition to restrict cube data, compare it with the having condition introduced in 2005, and write predicates with sets, current member checks, and in-string tests.
Explore the mdx sum function, its syntax with a set expression and optional numeric expression, and learn how to compute total sales and percentage contributions using calculated members.
Copy the calculated member expression to SQL Server Data Tools, name it dimsdale's territory sales territory country total sales Australia and Canada, apply euro format, and deploy the demo cube.
Explore static and dynamic named sets, including query-scoped and session-scoped variants, to produce top five products by internet sales and observe caching effects.
The full form of MDX is Multi Dimensional eXpression. This is used to query OLAP cube. It means you can select or retrieve the data from OLAP cube using MDX . In this course i have used SQL Server Analysis Services technology to fetch the data using MDX queries.
To make it more clear i can say , we write SQL commands to select the data from the database . In the same way we write MDX queries to select the data from OLAP cube.
In this online MDX Training video Course, following are the course contents which are covered
•Structure of the cube
•How MDX Queries Fetch the data from the cube
•How to create a basic cube
•What is the purpose of Hierarchy
•How to create hierarchies
•How to modify the existing cube
•Terminologies - Children,Member and Level
•Set - { }
•Tuple - ( )
•Default measure
•Filter condition
•Having condition
•Where condition
•Difference between where and having condition in MDX
•Calculated Member
•Named set
Orderset - One example of named set
The result of a Tuple will return a Set
Decide when to create named set and calculated member
•Query scoped and Session scoped Calculated Member
•Query scoped and Session scoped Namedset
Allmembers
Static and Dynamic Named Set
In this MDX video tutorial ,quiz, lab exercises and demonstration exercises are also included. With all these practice activities participant will feel more confident and will be able to write basic MDX scripts by himself or herself. If participant is working in a company where MDX scripts are prewritten then participants will be able to understand those scripts after learning this course.
But i will not stop only to this course , very soon i will release MDX Part 2 which will have advanced MDX queries and functions . After that course participant will be able to write complex MDX commands and feel more confident in writing MDX commands.