Hi, Here are some Differences between SQL Server 2008/R2 and 2012.

Sr. No.

SQL Server 2008

SQL Server 2012

1 Exceptions handle using TRY….CATCH Unique Exceptions handling with THROW
2 High Availability features as Log Shipping, Replication, Mirroring & Clustering New Feature ALWAYS ON introduced with addition of 2008 features.
3 Web Development and Business Intelligence Enhanced with business intelligence features. Excel PowerPivot by adding more drill and KPI through. In Addition with SQL server 2008, Web Development and Business Intelligence Enhanced with business intelligence features and Excel PowerPivot by adding more drill and KPI’s.
4 Could not supported for Windows Server Core Support. Supported for Windows Server Core Support
5 Columnstore Indexes not supported. New Columnstore Indexes feature that is completely unique to SQL Server. They are special type of read-only index designed to be use with Data Warehouse queries. Basically, data is grouped and stored in a flat, compressed column index, greatly reducing I/O and memory utilization on large queries.
6 PowerShell Supported Enhanced PowerShell Supported
7 Distributed replay features not available. Distributed replay allows you to capture a workload on a production server, and replay it on another machine. This way changes in underlying schemas, support packs, or hardware changes can be tested under production conditions.
8 PowerView not available in BI features PowerView is a fairly powerful self-service BI toolkit that allows users to create mash ups of BI reports from all over the Enterprise.
9 EXECUTE … with RECOMPLIE feature Enhanced EXECUTE with many option like WITH RESULT SET….
10 Maximum numbers of concurrent connections to SQL Server 2008 is 32767 SQL server 2012 has unlimited concurrent connections.
11 The SQL Server 2008 uses 27 bit bit precision for spatial calculations.
The SQL Server 2012 uses 48 bit precision for spatial calculations
12 TRY_CONVERT() and FORMAT() functions are not available in SQL Server 2008
TRY_CONVERT() and FORMAT() functions are newly included in SQL Server 2012
13 ORDER BY Clause does not have OFFSET / FETCH options for paging ORDER BY Clause have OFFSET / FETCH options for paging
14 SQL Server 2008 is code named as Katmai. SQL Server 2012 is code named as Denali
15 In SQL Server 2008, audit is an Enterprise-only feature. Only available in Enterprise, Evaluation, and Developer Edition. In SQL Server 2012,support for server auditing is expanded to include all editions of SQL Server.
16 Sequence is not available in SQL Server 2008
Sequence is included in SQL Server 2012.Sequence is a user defined object that generates a sequence of a number
17 The Full Text Search in SQL Server 2008 does not allow us to search and index data stored in extended properties or metadata. The Full Text Search in SQL Server 2012 has been enhanced by allowing us to search and index data stored in extended properties or metadata. Consider a PDF document that has “properties” filled in like Name, Type, Folder path, Size, Date Created, etc. In the newest release of SQL Server, this data could be indexes and searched along with the data in the document itself. The data does have to be exposed to work, but it’s possible now.
18 Analysis Services in SQL Server does not have BI Semantic Model
Analysis Services will include a new BI Semantic Model (BISM). BISM is a

(BISM) concept. 3-layer model that includes: Data Model, Business Logic and Data Access

19 The BCP not support –K Option. The BCP Utility and SQLCMD Utility utilities enhanced with -K option, which allows to specify read-only access to a secondary replica in an AlwaysOn availability group.
20 sys.dm_exec_query_stats  sys.dm_exec_query_stats  added four columns to help troubleshoot long running queries. You can use the total_rows, min_rows, max_rows and last_rows aggregate row count columns to separate queries that are returning a large number of rows from problematic queries that may be missing an index or have a bad query plan.

Other more precious features will be added with this document very soon.
J

Advertisements
Comments
  1. Jay says:

    really helpfull..

    Like

  2. shoyab says:

    thanks . Its very helpful

    Like

  3. softwareengineer916 says:

    Great Post…Really awesome….Thank you

    Like

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s