The Microsoft SQL Server 2005 Performance Dashboard Reports are used to monitor and resolve performance problems on your SQL Server 2005 database server. The SQL Server instance being monitored and the Management Studio client used to run the reports must both be running SP2 or later. Common performance problems that…Read More
Microsoft has released a tool called the Microsoft SQL Server Best Practices Analyzer. With this tool, you can test and implement a combination of SQL Server best practices and then implement them on your SQL Server. The SQL Server 2005 Best Practices Analyzer gathers data from Microsoft Windows and SQL…Read More
Index Scan retrieves all the rows from the table. Index Seek retrieves selective rows from the table.
This question is asked many times to me. What is difference between DISTINCT and GROUP BY? A DISTINCT and GROUP BY usually generate the same query plan, so performance should be the same across both query constructs. GROUP BY should be used to apply aggregate operators to each group. If…Read More