Microsoft SQL Server License

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[Error Message] The SQL Server product key is not valid. To proceed, re-enter the product key values from the Certificate of Authenticity (COA) or SQL Server packaging. [Details] Microsoft.SqlServer.Configuration.SetupExtension.InvalidPidException: The SQL Server product key is not valid. To proceed, re-enter the product key values from the Certificate of Authenticity (COA) or SQL Server packaging.

SELECT * FROM sys.dm_db_persisted_sku_features;

ECLARE @Version NVARCHAR(128) 
SET @Version = 
    CONVERT(NVARCHAR(128),SERVERPROPERTY ('ProductVersion'))
SELECT
  CASE
     WHEN @Version like '11%'   THEN 'SQL SERVER 2012'
     WHEN @Version like '12%'   THEN 'SQL SERVER 2014'
     WHEN @Version like '13%'   THEN 'SQL SERVER 2016'    
     ELSE 'Unknown'
  END AS 'Sql Server Version Name',
  SERVERPROPERTY('ProductVersion') AS ProductVersion,
  SERVERPROPERTY('Edition') AS Edition,
  SERVERPROPERTY('ProductLevel') AS ProductLevel

See also

• SQL Server, SQL Server Management Studio, Microsoft SQL Server License, MDS

https://www.sqlshack.com/sql-server-edition-upgrade/