Data Warehouse terms
This post describes the different useful Data Warehouse terms which are closely associated with Kimbal Data Warehousing approach.
- Measure It is a numeric value in reporting and analysis. Example: Price,Balance or Inventory. Measures come from data sources. Measure is characterized by grain.
- Dimension A dimension is a collection of related values called members. example: 2008 is a member of Time. It can be described as an “axis of analysis”. In a query, dimension can be part of the query result. The most fundamental dimension is Time, which is essential in any context. Dimensions are typically master data entries.
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No commentsImportance of Data Warehousing and its Design
This post explains about what Data warehousing is and why we should care about it and then speaks about importance of using in enterprises and its design. It is important to understand the what data warehousing is all about, As a database developer you are likely to be involved with Data warehousing in one way or the other.
Data Warehousing Defined:
Data warehousing is a methodological approach for organizing and managing enterprise data to provide a trustworthy,consistent, integrated data foundation for an enterprise’s data-driven applications.
Importance
Data warehousing is must for running an enterprise of any size to make intelligent decisions. It enables the competitive advantage.Data warehousing is essentially tells about data and its relationships and it is foundation for Business Intelligence(BI). It clearly draws the distinction between data and information.
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No commentsPIVOT & UNPIVOT Operators in SQL Server 2008
PIVOT is a new T-SQL operator introduced in SQL Server 2008 which can be used to rotate rows into columns and can create a crosstab query. You can specify the PIVOT operator in FROM clause of your query.
Using PIVOT
Specify the desired values that you want to see in SELECT statement and FROM clause contains the PIVOT statement. Let us take an example
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No commentsDate & Time Data Types in SQL Server 2008
The four new data types for storing dates and times in SQL Server 2008 are
- Date
- Time
- DateTime2
- DateTimeoffset
This post discuss about new date time data types and new date time related functions introduced in SQL Server 2008.
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No commentsT-SQL TIP in SQL Server 2008
You love this if you write a lot of T-SQL code. This tip I can say as T-SQL language syntax enhancement. The following are the enhancements in T-SQL
- Now We can declare and initialize the variables with single statement.
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No commentsIntroducing DotnetSizzler.com
Dear Readers,
I have come up with a new BLOG DotnetSizzler that serves as a center that offers my services and is a platform for discussion and sharing of Tips & Tricks, Design Principles, Best practices, updates and techniques pertaining to Microsoft Technologies.
Major Stress will be on code snippets on .NET Technologies. I am to share the projects that I have lead and wish to continue as a freelance programmer.
I promise you to keep both my BLOGS DotnetSizzler and Techbubbles interesting, up to date and informative. I thank you for your support and hope you will continue the same.
Be sure to check the DotnetSizzler and feel free to add your comments, suggestions and questions.
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No commentsMERGE Statement in SQL Server 2008
There has been significant T-SQL improvements in SQL Server 2008. This post explores the most notable changes in T-SQL introduced in SQL Server 2008.
The MERGE Statement
As name says, It combines Insert,Update, and Delete operations along with the Select operation which provides the source and target data for merge. In earlier versions, We need to write separate multiple statements to achieve the same.
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1 commentCreating an Analysis Services Project in Visual Studio 2008
Microsoft SQL Server Analysis Services allows the developers to provide a unified access of data for analytical analysis and reporting. Developers can manage and aggregate the queries from multiple subject areas. This can be achieved by creating a cube in Visual Studio 2008. This post defines and explains the terms used in creating an analysis project in VS 2008.
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No commentsSilverlight sample in Visual Studio 2008
This post explains the tools required to start working with the Silverlight 3 in VS 2008. Also explains the sample Silverlight application building in Visual Studio 2008 environment.
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No commentsTable Expressions in SQL server
Table Expressions are sub-queries where a table is expected. There are two types of table expressions. This post explains how to use the Table expressions and their advantages.
- Derived tables
- Common Table Expressions
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