Technical Article

Statistics Used by the Query Optimizer in Microsoft SQL Server 2008

Microsoft SQL Server 2008 collects statistical information about indexes and column data stored in the database. These statistics are used by the SQL Server query optimizer to choose the most efficient plan for retrieving or updating data. This paper describes what data is collected, where it is stored, and which commands create, update, and delete statistics. By default, SQL Server 2008 also creates and updates statistics automatically, when such an operation is considered to be useful. This paper also outlines how these defaults can be changed on different levels (column, table, and database).

External Article

Creating a table with horizontal partitioning in SQL Server

During the planning phase I found out about the new partitioning feature in SQL Server 2005 and later editions of SQL Server. It is a vast topic with several associated operations and configurations involved. In this tip I will share what I learned about partitioning, show an example to implement horizontal table partitioning along with a comprehensive list of related benefits and considerations.

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Who am I?

By Steve Jones - SSC Editor

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Question of the Day

Who am I?

If I want to track which login called a stored procedure and use the value in an audit, what function can I use to replace the xxx below? 

create procedure AddNewCustomer
  @customername varchar(200)
AS
BEGIN
    DECLARE @added VARCHAR(100)
    SELECT @added = xxx

    IF @customername IS NOT NULL
      INSERT dbo.Customer
      (
          CustomerName,
          AddedBy 
      )
      VALUES
      (@customername, @added)
END

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