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Msdn sql server 2012 enterprise edition download full#
Msdn sql server 2012 enterprise edition download download#

XEvents enhancement for read routing failure for an Availability Group - Currently the read_only_rout_fail XEvent only gets fired if there is a routing list present, but none of the servers in the routing list is available for connections.New DMF to replace DBCC INPUTBUFFER - A new Dynamic Management Function sys.dm_input_buffer that takes the session_id as parameter is introduced to replace DBCC INPUTBUFFER.IFI support messages in SQL Server Error Log - Indicate in the error log that Database Instant File Initialization is enabled/disabled.TempDB file and file size information in SQL Error Log - If size and auto growth is different for TempDB data files during startup, print the number of files and trigger a warning.To see if a database has been generated from a call to clone database you can use the following command, select DATABASEPROPERTYEX('clonedb', 'isClone').The return value of 1 is true, and 0 is false. Cloned databases should not be used in production environments. The call is performed with DBCC clonedatabase ('source_database_name', 'clone_database_name'). New DBCC command for cloning a database - Clone database is a new DBCC command added that allows power users such as CSS to trouble shoot existing production databases by cloning the schema and metadata, without the data.The SP has now been changed to set the correct compatibility level for the distribution database. The level change was due to an issue in sp_vupgrade_replication stored procedure. Setting correct compatibility level for distribution database - After Service Pack Installation the Distribution database compatibility level changes to 90.

Can be useful when troubleshooting connectivity scenarios while, for example, deploying TLS 1.2

Add protocol tracing to SSL negotiation steps - Add bit trace information for successful/failed negotiation, including the protocol etc.

Better memory grant/usage diagnostics - New query_memory_grant_usage XEvent (backport from Server 2016 SP1).

This improvement introduces new XEvent action/filter columns equivalent to query_hash and query_plan_hash except they are defined as INT64 which can help correlating queries between XE and DMVs. Since SQL server does not have "unsigned bigint", casting does not always work.

DMV defines them as varbinary(8), while XEvent defines them as UINT64.

Better correlation between diagnostics XE and DMVs - Query_hash and query_plan_hash fields are used for identifying a query uniquely.

Enhanced diagnostics in showplan XML - Showplan XML has been enhanced to expose information about enabled trace flags, memory fractions for optimized nested loop join, CPU time, and elapsed time.

Msdn sql server 2012 enterprise edition download full#

SP4 introduces a new Registry key, which supports the creation of a full dump for Replication Agents. The default behavior requires complex troubleshooting steep for unhandled exceptions.

Full dumps support for Replication Agents - Today if replication agents encounter an unhandled exception, the default behavior is to create a mini dump of the exception symptoms.

Supportability and diagnostics improvements

Change Tracking Cleanup - Improved change tracking cleanup performance and efficiency for Change Tracking side tables.

Enable > 8TB for Buffer Pool - Enable 128-TB Virtual address space for buffer pool usage.

Memory objects partitioned by node can by further promoted to be partitioned by CPU, where the number of partitions equals number of CPUs.

The number of partitions equals the number of NUMA nodes. Unpartitioned memory objects can be dynamically promoted to be partitioned by node. The goal of dynamic promotion is to prevent potential bottlenecks and automatically partition a thread safe memory object. Dynamic Memory Object Scaling - Dynamically partition memory objects based on number of nodes and cores to scale on modern hardware.An improved cleanup procedure aims to eliminate some of these blocking or deadlock scenarios. Improved distribution agent cleanup procedure - An oversized distribution database caused blocking and deadlock situation.

Msdn sql server 2012 enterprise edition download download#

Service Pack 4 release notes Download pages The Service Packs are available online only, not on the installation media, and can be downloaded as follows: Each service pack is cumulative of prior service packs. This topic contains the aggregated release notes of the four service packs for SQL Server 2012.

Applies to: SQL Server (all supported versions)