https://community.esri.com/t5/geodatabase-questions/changing-sql-instance-name-with-a-cname-what-is/m-p/1091101#M7322 <P>In general, you can rename the server and not damage a geodatabase. Altering the database name would invalidate a registered geodatabase, though .&nbsp;</P><P>You might need to change your connection files if the new name can't be found by Microsoft's connection library using the old name.</P><P>- V</P> Sun, 22 Aug 2021 16:56:03 GMT VinceAngelo 2021-08-22T16:56:03Z https://community.esri.com/t5/geodatabase-questions/changing-sql-instance-name-with-a-cname-what-is/m-p/1089433#M7318 <P>I.T. is wondering if they can give the SQL database instance a cname when they upgrade SQL server onto a new server. The services I have published are referencing an sde connection&nbsp; from a sql instance that does not have a cname. The new instance will be aliased as the original instance.</P><P>What, if anything,&nbsp; will happen to my services that use the existing registered database connections if a cname is used? Will the connection break? I am using Enterprise 10.8.&nbsp;&nbsp; SQL server is being upgraded form 2014 to 2019.</P> Mon, 16 Aug 2021 20:50:38 GMT https://community.esri.com/t5/geodatabase-questions/changing-sql-instance-name-with-a-cname-what-is/m-p/1089433#M7318 ChrisJensen 2021-08-16T20:50:38Z https://community.esri.com/t5/geodatabase-questions/changing-sql-instance-name-with-a-cname-what-is/m-p/1091101#M7322 <P>In general, you can rename the server and not damage a geodatabase. Altering the database name would invalidate a registered geodatabase, though .&nbsp;</P><P>You might need to change your connection files if the new name can't be found by Microsoft's connection library using the old name.</P><P>- V</P> Sun, 22 Aug 2021 16:56:03 GMT https://community.esri.com/t5/geodatabase-questions/changing-sql-instance-name-with-a-cname-what-is/m-p/1091101#M7322 VinceAngelo 2021-08-22T16:56:03Z