How to find NULL values in a Table - topic by Mathuram

I have a table of having 260 columns in that i need to retrieve the records having NULL values. I had seen my DDL also, few of the columns having NULL Constraint, so i left those columns in my query. My Query is   SEL * FROM TableName WHERE CN1 is NULL or CN2 is NULL or CN3 is NULL... or CN260 is NULL   Is there any other method to find the NULL values from all the columns?