Alwayson availability groups failover monitoring - Part 1

There are a lot of ways to monitor AG, sql server errorlog, window event log, cluster log......, here I list...

Gap issue in SQL Server 2012 IDENTITY column

Found a gap issue when using IDENTITY column in SQL Server 2012, every time I restarted sql server service, the current...

Find out orphan database file on disk

Sometimes you detach databases,  or you delete a database which is in restoring status,  the data and log file will...

trace flag for backup and restore operation

1. 3004
show the internal backup/restore operation for every step.
ex.
dbcc traceon(3004,3605,-1)
GO

3605 means output the message to errorlog. you can use 3604...

SQL Server 2012 AlwaysOn Availability Groups setup scripts - Part 1

Here are some scripts which can be used for setting up 2 nodes AlwaysOn Availability Groups, you can make your own...

SQL Server 2012 AlwaysOn Availability Groups setup scripts - Part 2

3. Install SQL Instance
   a) Configure the firewall setting on both 2 nodes.
echo Default Instance
netsh advfirewall firewall add rule name="SQLServer"...

SQL Server 2012 AlwaysOn Availability Groups setup scripts - Part 3

4. Setup 2 nodes alwayson availability group 
    a) Enable alwayson on both 2 nodes
enable-sqlalwayson -Path "SQLSERVER:\SQL\SQL2012-01\DEFAULT"
enable-sqlalwayson -Path "SQLSERVER:\SQL\SQL2012-02\DEFAULT"

    b) Restore...

Huge collection of Free Microsoft eBooks

I must share it, there are many useful resource

http://blogs.msdn.com/b/mssmallbiz/archive/2013/06/18/huge-collection-of-free-microsoft-ebooks-for-you-including-office-office-365-sharepoint-sql-server-system-center-visual-studio-web-development-windows-windows-azure-and-windows-server.aspx?Redirected=true

http://blogs.msdn.com/b/mssmallbiz/archive/2012/07/27/large-collection-of-free-microsoft-ebooks-for-you-including-sharepoint-visual-studio-windows-phone-windows-8-office-365-office-2010-sql-server-2012-azure-and-more.aspx

http://blogs.msdn.com/b/mssmallbiz/archive/2012/07/30/another-large-collection-of-free-microsoft-ebooks-and-resource-kits-for-you-including-sharepoint-2013-office-2013-office-365-duet-2-0-azure-cloud-windows-phone-lync-dynamics-crm-and-more.aspx

Thank you , Eric

use Table Variables in transaction

when using table variable, please note table variable doesn't support transaction rollback. here is the words from BOL

Because table variables...

Limit running Powershell script under specific path with AppLocker

Say if you have a management server or a script repository server, sometimes users save/test/run their script from different path,...