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Learnnowonline Sql Server 2012 T Sql Working With Data

Автор: Bo0mB0om » 31 августа 2016
Learnnowonline Sql Server 2012 T Sql Working With Data

LearnNowOnline - SQL Server 2012: T-SQL Working with Data
English | 12/3/2012 | mp4 | H264 800x600, 1024x768 | AAC 1 ch | 1 hr 18 min | 132 MB


When you retrieve data with a SELECT statement, SQL returns a result set. However, any actions you take on that data (besides just looking at it) involve data manipulation queries that use one of the following three T-SQL statements: INSERT, UPDATE, or DELETE. SQL queries that use these statements are sometimes known as action queries. You'll learn about the basic uses of these statements. When you modify data in SQL Server, it is important to understand how isolation levels and locking can affect performance and concurrency. You'll learn about these concepts and how they can affect T-SQL code you write, as well as mitigating measures you can take to avoid problems.
Prerequisites
This course assumes that you have at least a basic familiarity with the concept of relational databases and a basic understanding of what SQL Server is and the high-level tools in it, as well as how to create and manage objects using Management Studio. You should also have a basic understanding of how SQL Server implements security, including its authentication and authorization schemes, and how to assign permissions on securable objects to principals.

Learnnowonline Sql Server 2012 T Sql Working With Data

Learnnowonline Sql Server 2012 T Sql Working With Data

Learnnowonline Sql Server 2012 T Sql Working With Data

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