Wednesday 13 July 2011

Genesis of Sql server from 1989(creation) till date……..

Hiii friend’s m back with my technical post hope u all like it. Depending on my profession i thought to write something related to SQL server and keeping in mind that it's my 1st technical blog post so let’s pen down history of SQL server from creation-till date...

Microsoft SQL training is important to IT professionals interested in knowing how to work on the product. A history of Microsoft SQL server is also very important. Basically, the code for MS SQL came from the Sybase SQL Server, which was the first database Microsoft attempted. It competed against Sybase, IBM and Oracle. Then, Sybase, Microsoft, and Ashton-Tate worked together to create the first version of the SQL Server. It ended up being pretty much the same as the third edition of the Sybase SQL Server. Then, the Microsoft SQL Server 4.2 was available in 1992. When the 4.21 version was available it was at the same time as Windows NT 3.1. The first version of SQL that did not include any assistance from Sybase was the Microsoft SQL Server v6.0.

When Windows NT made an appearance Sybase and Microsoft moved on to pursue their own interests. This allowed Microsoft to negotiate exclusive rights to the versions of SQL that were written for Microsoft systems. The Sybase server actually changed its name to Adaptive Server Enterprise to keep it from being confused with the Microsoft version. Many revisions have been made without assistance from Sybase since the two parted ways. The first database server written on GUI was a complete change from the Sybase code.
In the ten years since release of Microsoft's previous SQL Server product (SQL Server 2000), advancements have been made in performance, the client IDE tools, and several complementary systems that are packaged with SQL Server 2005. Performance has been improved, complementary systems are now available with the system, and client IDE tools are included. Some of the new systems included are Analysis Services, ETL, and messaging technologies like notification services and service broker.
SQL Server 2005 (codename Yukon), released in October 2005, is the successor to SQL Server 2000. It included native support for managing XML data, in addition to relational data. For relational data, T-SQL has been augmented with error handling features (try/catch) and support for recursive queries with CTEs (Common Table Expressions). SQL Server 2005 has also been enhanced with new indexing algorithms, syntax and better error recovery systems.

SQL Server 2005 introduced "MARS" (Multiple Active Results Sets), a method of allowing usage of database connections for multiple purposes.

SQL Server 2005 introduced DMVs (Dynamic Management Views), which are specialized views and functions that return server state information that can be used to monitor the health of a server instance, diagnose problems, and tune performance.

SQL Server 2005 introduced Database Mirroring, but it was not fully supported until the first Service Pack release (SP1).

After approx. 5 years release of Sql server 2005 the great SQL Server 2008 R2 (formerly codenamed SQL Server "Kilimanjaro") was announced at TechEd 2009, and was released to manufacturing on April 21, 2010.SQL Server 2008 R2 adds certain features to SQL Server 2008 including a master data management system branded as Master Data Services, a central management of master data entities and hierarchies. Also Multi Server Management, a centralized console to manage multiple SQL Server 2008 instances and services including relational databases, Reporting Services, Analysis Services & Integration Services.
SQL Server 2008 R2 includes a number of new services, including Power Pivot for Excel and SharePoint, Master Data Services, Stream Insight, Report Builder 3.0, Reporting Services Add-in for SharePoint, a Data-tier function in Visual Studio that enables packaging of tiered databases as part of an application, and a SQL Server Utility named UC (Utility Control Point), part of AMSM (Application and Multi-Server Management) that is used to manage multiple SQL Servers
The next release of SQL Server, code-named Denali, is right around the corner. This version of SQL is one of my favorite of all the releases which came with huge improvements when it arrived in 2011 with its CTP1 release. As mentioned it’s my favorite of all so I will get deep into its detailed feature in my next post.

Over all Summary of SQL evolution:

In 1988, Microsoft released its first version of SQL Server. It was developed jointly by Microsoft and Sybase for the OS/2 platform.

  • 1993 – SQL Server 4.21 for Windows NT
  • 1995 – SQL Server 6.0, codenamed SQL95
  • 1996 – SQL Server 6.5, codenamed Hydra
  • 1999 – SQL Server 7.0, codenamed Sphinx
  • 1999 – SQL Server 7.0 OLAP, codenamed Plato
  • 2000 – SQL Server 2000 32-bit, codenamed Shiloh (version 8.0)
  • 2003 – SQL Server 2000 64-bit, codenamed Liberty
  • 2005 – SQL Server 2005, codenamed Yukon (version 9.0)
  • 2008 – SQL Server 2008, codenamed Katmai (version 10.0)
  • 2010 – SQL Server 2008 R2, Codenamed Kilimanjaro (aka KJ)
  • Next – SQL Server 2011, Codenamed Denali
Please provide all your suggestions based on the same. Finally thanks all readers for reading my first technical post & Feel free to comment your opinions and suggestions….

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