The inventor of the relational model Edgar Codd proposed the theory of normalization with the introduction of First Normal Form and he continued to extend theory with Second and Third Normal Form. Later he joined with Raymond F. Boyce to develop the theory of Boyce-Codd Normal Form.
Theory of Data Normalization in Sql is still being developed further. For example there are discussions even on 6th Normal Form. But in most practical applications normalization achieves its best in 3rd Normal Form. The evolution of Normalization theories is illustrated below
1st Normal Form >> 2nd Normal Form >> 3rd Normal Form >>4th Normal Form >> 5th Normal Form >>6th Normal Form
Database Normalization Examples –
Assume a video library maintains a database of movies rented out. Without any normalization all information is stored in one table as shown below.
Further We shall discuss on different normal forms in detailed:
Microsoft is excited to announce a new preview for the next version of SQL Server (SQL Server v.Next). Community Technology Preview (CTP) 1.4 is available on both Windows and Linux. In this preview, they added the ability to schedule jobs using SQL Server Agent on Linux. We can try the preview in your choice of development and test environments now: www.sqlserveronlinux.com.
Key CTP 1.4 enhancements
The primary enhancement to SQL Server v.Next on Linux in this release is the ability to schedule jobs using SQL Server Agent. This functionality helps administrators automate maintenance jobs and other tasks, or run them in response to an event. Some SQL Server Agent functionality is not yet enabled for SQL Server on Linux. To learn more and see sample SQL Server Agent jobs, you can read detailed blog titled “SQL Server on Linux: Running scheduled jobs with SQL Server Agent” or attend an Engineering Town Hall about “SQL Server Agent and Full Text Search in SQL Server on Linux.”
The mssql-server-linux container image on Docker Hub now includes the sqlcmd and bcp command line utilities to make it easier to create and attach databases and automate other actions when working with containers. For additional detail on CTP 1.4, please visit What’s New in SQL Server v.Next, Release Notes and Linux
In addition, SQL Server Analysis Services and SQL Server Reporting Services developer tools now support Visual Studio 2017. They are available for installation from the Visual Studio Marketplace providing the option for automatic updates going forward.
Get SQL Server v.Next CTP 1.4 today!
Try the preview of the next release of SQL Server today! Get started with the preview of SQL Server with our developer tutorials that show you how to install and use SQL Server v.Next on macOS, Docker, Windows, and Linux and quickly build an app in a programming language of your choice.
Sign up for the Early Adoption Program (EAP) — The EAP is designed to help customers and partners evaluate new features in SQL Server v.Next, and to build and deploy applications for SQL Server v.Next on Windows and Linux.
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