IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'EST_PED_VD' AND COLUMN_NAME = 'NM_FRM' AND COLLATION_NAME <> 'SQL_LATIN1_GENERAL_CP1_CI_AS')
BEGIN 
	ALTER TABLE EST_PED_VD ALTER COLUMN NM_FRM	VARCHAR	(155)  COLLATE SQL_LATIN1_GENERAL_CP1_CI_AS
END