IF EXISTS (SELECT * FROM sys.columns where object_id = OBJECT_ID(N'AKUZ.T_CDA_DGN_SPECIFIED_DEGREE_OF_VALIDITY_AKENEO') and name = 'DiagnosisDescription')
	UPDATE AKUZ.T_CDA_DGN_SPECIFIED_DEGREE_OF_VALIDITY_AKENEO SET [DiagnosisDescription] = '' WHERE [DiagnosisDescription] IS NULL
	ALTER TABLE AKUZ.T_CDA_DGN_SPECIFIED_DEGREE_OF_VALIDITY_AKENEO ALTER COLUMN [DiagnosisDescription] varchar(max) NOT NULL
GO