Knowledge Sharing

Today we get a request to install SQL server reporting services for 4 of 8 of the instances on a server.
As usual we pick our sql 2012 dump and start installing. When we reached to Add feature page of installation we were not able to see 4 of 8 instances in drop down as in screen shot

Difference Between varchar(max) and varchar(8000)

Script for Multiple Restore in one shot SQL server

Windows update can't check for updates because the service is not running

Patching does have its own issues, hard to predict

This time I was doing windows updates

Control panel --> System and security --> Windows update -->check for updates

The image file is valid , but is for a machine type other than the current machine

While patching SQL server 2005 SP1 to SP2, we face below error

Error: The image file is valid , but is for a machine type other than the current machine

This error clearly states that patch file is good, the issue is with my machines

SQL Server System Databases

Many people does know about system databases but no one remembers detailed version and get confuse in tricky questions. So I have put this in points

Master Database :

Script To Reindex Database In Sql Server

A file activation error occurred. The physical file name may be incorrect.

Copy all files from one drive to other via SQL Server Script xp_cmdshell

Copy all files from one drive to other via SQL Server Script using Robocopy

SQL Server ACID Properties

Difference Between Mutex vs Semaphore

SQL Server Full Job History

EXECUTE permission was denied on the object ‘xp_cmdshell’, database ‘mssqlsystemresource’, schema ‘sys’

Replication Doubts:

The list of trace flags available for SQL Server

How To Increase Performance Of Slow Insert In SQL Server

Restore Latest Backup in SQL Server

How do list files ,date and size inside a folder using SQL Server

How to delete Transaction log file in SQL server : Demo

How To Read Default Trace In Sql Server

SQL Script To Get Available And Free Disk Space From SQL Server

Cannot create a row of size XXXX which is greater than the allowable maximum row size of 8060

When dbcc checkdb last run OR Frequency of checkdb

'Cannot execute as the database principal because the principal "##MS_PolicyEventProcessingLogin##" does not exist

How to get list of databases from multiple servers using Powershell script

Cannot use special principal dbo

Error: Cannot use special principal dbo: Error 15405

Script to find sql server version on multiple instances using Power shell

Script to find sql server version on multiple instances using Power shell

How To Find Server details using SQL Query

Power Shell Script To Read Registry Of Multiple Server

How To Run Single Script on Multiple Servers

HOW TO DONATE ORGANS

Failed to run patch request for instance: (exit code: -2068709375) : Single Node Cluster Patching !!

Single Node Cluster Patching

Frequently used DMV's in SQL Server

The media family on device '' is incorrectly formed. SQL Server cannot process this media family

What is the Difference Between Rebuild and Reorganize indexes ; Interview Question

The SQL Server failover cluster instance 'instance name' was not correctly detected. The instance was discovered on the local node but it was not found to be active.

Could not clear 'DIFFERENTIAL' bitmap in database 'database name' because of error 9002

SQL Server Management Studio (SSMS) Keyboard Shortcuts

Server Side Trace vs Client Side Trace

SQL Server Job details in SQL 2000 , SQL 2005 , SQL 2008

Query is running slow from client sql server, Real Time Performance Issue

What Is The Difference Between Checkpoint And Lazy Writer : Interview Question

Why SQL Server SPID is blocking itself

Hi All

Issue: SPID is blocking itself

Description: On one of our server SQL 2005 i have run one maintainence (update statistics)job in morning hours on a businessday and as it should not create any issues i was monitoring server health. After executing job i found spid 64(belongs to job) is blocking itself.and after some time it went off

How to restore system databases on lower build

knowledge sharing : Restoring System databases on different build

Issue :

Datafiles and log files are lost on Uat server due to OS issue
------> Sql server is down
------> All data and log files lost including system database
------> Only backups are available

What is Statistic in Sql Server Part - 2

What is Statistic in Sql Server Part - 3

Affects of Snapshot Isolation Level and Tempdb datafile full

Affects of Snapshot Isolation Level on Tempdb

Last weekend we face an issue where we got alert due tempdb datafile is 95.05% full, which is as usual for weekend but there is one thing unusual we found that log file was only 4 % full.

We thought there could be 2 possible reasons.

1. Sorting.
2. Row versioning

Pages

Yes ! Auto update stats causing Performance issues??

Interview Question : Does sp_updatestats update the statistics of a table if I just run it or does it use specific formula??

Server Side Trace vs Client Side Trace