IF not EXISTS( SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'otherProperties' AND  COLUMN_NAME = 'Url')
begin
	alter table otherProperties add Url	nvarchar(1000)
end;
IF not EXISTS( SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'otherProperties' AND  COLUMN_NAME = 'Sharh')
begin
	alter table otherProperties add Sharh	nvarchar(max)
end;
IF not EXISTS( SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'otherProperties' AND  COLUMN_NAME = 'Thumbnail')
begin
	alter table otherProperties add Thumbnail	nvarchar(1000)
end