POST POST

DEC
17
2015

SQL Server Aliases

ORIGINALLY POSTED TO: http://blog.simontimms.com/2015/12/17/sql-server-alias/

Ever run into that problem where everybody on your team is using a different database instance name and every time you check out you have to update the config file with your instance name?

Boy have I seen some complicated solutions around this involving reading from environments and having private, unversioned configuration files. One of the developers on my team recommended using SQL Server Aliases to solve the problem. I fumbled around with these for a bit because I couldn't get them to work. Eventually, with some help, I got there.

Let's say that you have an instance on your machine called sqlexpress but that your project needs an instance called sqlexpress2012. The first thing is to open up the SQL Server Configuration Manager. The easiest way to do this is to run

SQLServerManager13.msc

where the 13 is the version number of SQL server so SQL 2014 is 12 and SQL 2016 is 13. That will give you

SQL Server Configuration Manager

The first thing to check is that your existing instance is talking over TCP/IP.

Enable TCP/IP

Then click on the properties for TCP/IPO and in the IP Addresses tab check for the TCP Dynamic Ports setting

Dynamic ports

Make note of that number because now we're going to jump to the alias section.

Aliases

Right click in there and add a new alias

In here we are going to set the alias name to the new name we want to use. The port number is what we found above, the protocol is TCP/IP and the server is the existing server name. You then have to repeat this for the 64 bit client configuration and then restart your SQL server. You should now be able to use the new name, localhost\sqlexpress2012 to access the server.


Simon Timms

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