DBA - Backup All TDE Certificates For All Databases ON Sql Server

When we try to de-attach a database on which TDE is enabled  and try to restore, we get this error "Cannot Find Server Certificate with Thumbprint", We have to take the backup of certificate from source server and create on destination server and then we can attach database successfully.

The code can be used to generate backup certificates for all the databases on server.

USE MASTER
GO
DECLARE @CerName VARCHAR(500)

DECLARE @FolderLocation VARCHAR(100)
SET @FolderLocation='C:\Scripts\Keys\'
DECLARE CUR CURSOR FOR
  SELECT name
  FROM   sys.certificates
  WHERE  name NOT LIKE '##%'
OPEN CUR
FETCH NEXT FROM CUR INTO @CerName
WHILE @@FETCH_STATUS = 0
  BEGIN
      DECLARE @SQL NVARCHAR(MAX)

      SET @SQL=''
      SET @sql = 'BACKUP CERTIFICATE '+ @CerName
      SET @sql = @sql + ' TO FILE = '''+ @FolderLocation
                 + @CerName + '.cer'''+ CHAR(10)
      SET @SQL=@SQL + 'WITH PRIVATE KEY ( FILE='''
               + @FolderLocation + @CerName + '.key'','+ CHAR(10)
               + 'ENCRYPTION BY PASSWORD='''
               + CAST(NEWID() AS VARCHAR(50)) + ''')'
               + CHAR(10) + 'GO'

      PRINT @sql

      FETCH NEXT FROM CUR INTO @CerName
  END

CLOSE CUR
DEALLOCATE CUR

CREATE Certificate from Backup Copy

CREATE CERTIFICATE CertificateName

FROM FILE='C:\Scripts\Keys\CertificateName_TDECert.cer'

WITH PRIVATE KEY(FILE='C:\Scripts\Keys\Certificate_TDEKey.key',

DECRYPTION BY PASSWORD='Password$')