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              Find out a particular column throughout the database in PostgresqlPreviously got a situation where I needed to get t by Nitika.Verma
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SQL query to add column's values, containing null values
                      Write a sql query  to add column's value , containing null values also in records. But the sum of the added columns must be numeric only. Output cannot be null. It can be achieve by two ways.
SELECT (COALESCE(Column1, 0) + COALESCE(Column2, ... 
                       
        
        
