Jul 31, · SQL Server Pricing and LicensingOperating System: Windows XP. Apr 29, · Download SQL Server day Trial Software. Microsoft SQL Server is a database platform for large-scale online transaction processing (OLTP), data warehousing, and e-commerce applications; it is also a business intelligence platform for . Nov 05, · At #SQLPASS this week, Microsoft unveiled a couple of new editions that got a lot of attention, but there’s some really interesting things going on if you dig a little deeper. Standard Edition: Now with Backup Compression SQL Server introduced backup compression, but it was only available in Enterprise Edition. At the time, Enterprise.
SQL Server 4. SQL Server 6. About the time Windows NT was released in July , Sybase and Microsoft parted ways and each pursued its own design and marketing schemes. Microsoft negotiated exclusive rights to all versions of SQL Server written for Microsoft operating systems. SQL Server 7. Data pages were enlarged from 2k bytes to 8k bytes. Extents thereby grew from 16k bytes to 64k bytes. Although there were pre-release versions of SQL as well as Windows compiled for Alpha, these were canceled and were never commercially released.
SQL Server [ edit ] SQL Server included more modifications and extensions to the Sybase code base, adding support for the IA architecture now out of "mainstream" support . These include: Client tools, such as Enterprise Manager, would still need to be run from bit x86 clients. It included native support for managing XML data, in addition to relational data. For this purpose, it defined an xml data type that could be used either as a data type in database columns or as literals in queries.
XML is converted to an internal binary data type before being stored in the database. Specialized indexing methods were made available for XML data. When the data is accessed over web services, results are returned as XML. SQL Server has also been enhanced with new indexing algorithms, syntax and better error recovery systems.
Data pages are checksummed for better error resiliency, and optimistic concurrency support has been added for better performance. Permissions and access control have been made more granular and the query processor handles concurrent execution of queries in a more efficient way. Partitions on tables and indexes are supported natively, so scaling out a database onto a cluster is easier. NET Framework. Automatic failover requires a witness partner and an operating mode of synchronous also known as high-safety or full safety.
Prior to SP1, it was not enabled by default, and was not supported by Microsoft. SQL Server also includes support for structured and semi-structured data, including digital media formats for pictures, audio, video and other multimedia data. In current versions, such multimedia data can be stored as BLOBs binary large objects , but they are generic bitstreams. Intrinsic awareness of multimedia data will allow specialized functions to be performed on them.
Backing up and restoring the database backs up or restores the referenced files as well. According to a Microsoft technical article, this simplifies management and improves performance. A "Round Earth" data type GEOGRAPHY uses an ellipsoidal model in which the Earth is defined as a single continuous entity which does not suffer from the singularities such as the international dateline, poles, or map projection zone "edges". It also includes Resource Governor that allows reserving resources for certain users or workflows.
It also includes capabilities for transparent encryption of data TDE as well as compression of backups. However, the x64 platform would continue on in force. It was released to manufacturing on March 6, Whilst small tables may be entirely resident in memory in all versions of SQL Server, they also may reside on disk, so work is involved in reserving RAM , writing evicted pages to disk, loading new pages from disk, locking the pages in RAM while they are being operated on, and many other tasks.
By treating a table as guaranteed to be entirely resident in memory much of the 'plumbing' of disk-based databases can be avoided. SQL Server also enhances the Always On HADR solution by increasing the readable secondaries count and sustaining read operations upon secondary-primary disconnections, and it provides new hybrid disaster recovery and backup solutions with Microsoft Azure, enabling customers to use existing skills with the on-premises version of SQL Server to take advantage of Microsoft's global datacenters.
In addition, it takes advantage of new Windows Server and Windows Server R2 capabilities for database application scalability in a physical or virtual environment. Microsoft provides three versions of SQL Server for downloading: The RTM version is SQL Server is supported on x64 processors only.
It is no longer supported on x86 processors.
SQL Server 4. SQL Server 6. About the time Windows NT was released in July , Sybase and Microsoft parted ways and each pursued its own design and marketing schemes. Microsoft negotiated exclusive rights to all versions of SQL Server written for Microsoft operating systems. SQL Server 7.