Archive for the 'SQL server' Category
Importance 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 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 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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No commentsSQL server Joins or Subqueries?
Select statements that use join operator and join statements can be written in Subqueries and similarly Subqueries can be written in Joins. Writing the Select statements with Join operator can help database engine to find more efficient strategy for retrieving the appropriate data. However each having their own advantage over other. Some problems can be easily solve with Subqueries and some can be solve with Joins. More about SQL Joins can read here.
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No commentsSQL Server Reports Integration with SharePoint 2007
This post explains how to Deploy the SQL server Reports to Office SharePoint Server 2007. SQL Server Reporting Services can operate in two modes, either in Native Mode or Share Point Integration Mode.
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No commentsReport Builder 2.0 in SQL Server 2008
Report builder 2.0 is a report authoring tool that we can use to design and publish reports. We can specify the data source, what data to display on report and which layout you prefer to see the report. When you run the report, the report processor takes all the information you specified and retrieves the data and generates each page as you view it. This post explains step-by-step details of creating the report using Report Builder 2.0.
Using Report Builder you can
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