Some of you might just be starting out as a database administrator and need to know what a basic Transact-SQL query is for Microsoft SQL Server 2012, others might already be creating database objects. Either way, we put together a list of a few terms regarding Microsoft SQL Server that any database administrator should know.
- Transact-SQL (T-SQL): Central to SQL Server, T-SQL is a set of programming extensions from Sybase and Microsoft allowing all applications to communicate with SQL Server (regardless of the user interface of the application) by sending T-SQL statements to the server.
- Query: SQL code is written as a query statement and then performed against a database. All SQL queries perform data operations, including selecting, inserting/updating, or creating data objects. Clauses begin each query statement, such as SELECT, UPDATE, CREATE, or DELETE.
- SQL Azure: Service of Microsoft extending SQL server capabilities to the cloud allowing users to make relational queries against stored data.
- Relational Database: A collection of two-dimensional tables storing certain types of data that is organized to minimize duplication and data anomalies. The stored data is altered using the programming language SQL.
- High Availability (HA): Masking the effects of a hardware or software failure, downtime for users is minimized by allowing continued access to applications.
- Aggregate Functions:: Determines various statistics on sets of values by calculating a set of values and returning a single value.
- Recovery Model: Database property that defines the level of data recovery needed, including whether the transaction log requires backing up and what kinds of restore operations are available.
- Dynamic Management Views (DMVs): Look into the SQL Server and monitor its health and performance of the server, diagnose any problems, and adjust performance as needed.
- Extensible Markup Language (XML): Markup language that sets rules for encoding documents so that they can be read by both human and machine.
- Common Language Runtime (CLR): Provides an execution environment for .NET framework code, runs the code, and allows the programming languages to use the same representation.
Visit the SQL library at Microsoft for a complete list of SQL terminology.
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