SQL-Tips and Tricks | Varinder Sandhu

SQL Server – Single Instance vs. Multiple Instances

Varinder Sandhu — Fri, 24 Jul 2015 12:14:00 +0000

Single Instance Pros Only one instance needs to be administered on the single machine. There is no duplication of components or processing overhead, such as having to run multiple database engines on the same computer. This means that the overall performance of a server with a single instance may be

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Unable to connect the SQL Server Instance – 26 – Error Locating Server/Instance Specified

Varinder Sandhu — Fri, 21 Nov 2014 10:16:00 +0000

Problem\Issue: User is not able to connect the SQL Server Named Instance ServerName\InstanceName Additional Error Messages: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is

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SQL Server – How to read the SQL Server Error log files using TSQL

Varinder Sandhu — Tue, 11 Nov 2014 10:04:51 +0000

There is undocumented system stored procedure sp_readerrorlog which allows us to read the SQL Server error log files directly using T-SQL. This procedure has total 7 parameters as given below: Parameter Values First Parameter Value of error log file you want to read: 0 = current, 1 = Archive #1,

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SQL Server – Database mirroring vs Log Shipping

Varinder Sandhu — Tue, 29 Jul 2014 13:24:35 +0000

I would like to start this topic with very common question for database administrators. Question: What is difference between the Database Mirroring and Log Shipping? Which is preferable solution? Database Mirroring: Database mirroring is functionality in the SQL Server engine that reads from the transaction log and copies transactions from

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SQL Server – Backend version is not supported to design database diagrams or tables. (MS Visual Database Tools)

Varinder Sandhu — Thu, 10 Jul 2014 08:28:22 +0000

Error Messages : This backend version is not supported to design database diagrams or tables. (MS Visual Database Tools) Cause : The database to which you are connected does not allow schema modification with the Visual Database Tools. Resolution : Be sure you are connected to the correct database or

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SQL Server – Unattended Installation of SQL Server 2012 Using Command Line

Varinder Sandhu — Mon, 30 Jun 2014 12:45:01 +0000

Many times we face a requirement to perform the unattended installation of SQL Server. In this post we will see the steps to perform the unattended installation of SQL Server 2012 using command line. There are two ways to install the unattended installation of SQL Server 2012 using command line.

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SQL Server – Understanding of SQL Server Role and Database Role

Varinder Sandhu — Fri, 21 Mar 2014 11:27:11 +0000

SQL Server supports the two authentication mode as Windows authentication mode and Mixed authentication mode. Once the user is authenticated, SQL server will allow access to the user based on the permission that user has. All the user permissions are based on Server Role and Database Role. So let try

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SQL Server – Migrate/Transfer Maintenance Plan from one Instance to another

Varinder Sandhu — Fri, 14 Feb 2014 07:09:40 +0000

There are very few simple steps to migrate/ transfer the maintenance plan from one SQL Server instance to another. Maintenance Plan is nothing but SSIS package which SQL Server creates and deploys it under MSDB Database. I have created one maintenance plan to for the demonstration; you may migrate/ transfer

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SQL Server – How Like operator work with datetime

Varinder Sandhu — Tue, 12 Feb 2013 17:25:11 +0000

Today, my one of the friend shared a very interesting fact about like operator. With the help of this post I am sharing with you all. We need to convert it to character data while comparing with the like operator. Let‘s check with example Like operator with datetime Like Operator

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SQL Server – Change the Authentication Mode – Enable sa login

Varinder Sandhu — Fri, 25 Jan 2013 15:48:23 +0000

During the installation of SQL Server if you choose the windows authentication mode and sa login is disabled. With the help of following steps you can change the authentication mode from windows to SQL Server authentication mode. Change the Authentication Mode In SQL Server Management Studio Object Explorer, right-click the

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