Archives: December 2013
To optimize the performance of your database, you need to monitor and tune. You determine the performance baseline, how SQL Server is currently performing, through monitoring. Your optimization process includes making changes and then monitoring their effect. This means adjusting two overlapping performance areas, that is, database server performance and… Read more
SQL Server databases are the backbone of many enterprise applications, and good Transact-SQL (T-SQL) code is the best way to maximize SQL Server performance. Therefore, it is important for SQL developers to follow T-SQL best practices and guidelines when writing code. This article highlights some common T-SQL best practices to… Read more
Microsoft Windows Azure SQL Database, commonly known as SQL Azure, is a relational database in the cloud that is part of the Windows Azure platform. Although Windows Azure SQL Database is built on the SQL Server platform, there are differences you should consider when performing an Azure SQL Database migration. Read more
A critical part of database design and management is index design. Index design involves balancing space requirements and the resource overhead required to keep indexes up-to-date compared to the performance improvements resulting from the indexes. You can either use dynamic management functions (DMFs) and views (DMVs) or Database Engine Tuning… Read more
An execution plan is the sequence of operations SQL Server query optimizer performs to run the statements. The SQL Server query optimizer creates an execution plan before it actually runs a query. As per Microsoft Book Online, “Execution plans graphically display the data retrieval methods chosen by the SQL Server… Read more
Many database servers store confidential data, which must be protected from unauthorized access when it’s transmitted across the network and stored on the server. SQL Server provides support for encrypted connections, encrypting data, encrypting database and for encrypted storage.
Bulk transfers are a common way of importing large amounts of data into, or exporting large amounts of data out of, SQL Server databases. SQL Server supports bulk transfers run from an operating system command line or the SQL Server command processor. When performing bulk transfers, you must consider the… Read more
A trigger is a specialized stored procedure that activates (executes) in response to an event. There are two basic trigger types, ie data manipulation language (DML) trigger and data definition language (DDL) trigger, based on the type of event that causes them to fire. For example, a data manipulation language… Read more
SQL Server Integration Services (SSIS) security is based around several layers that provide a rich and flexible security environment. These layers of security include the use of digital signature, package properties, SQL Server database roles and operating system permissions.