Can A BigDecimal Be Null? You either never allow null values in database, application or view and initialize everything with new BigDecimal(0) or perform null checks on every usage for nullable values. How do you do null check for BigDecimal? You need a check for null values before the comparison. You may use this function
Which Aggregate Function Returns A Count Of All Non Null Values Returned By A Value Expression? The sum() and total() aggregate functions return sum of all non-NULL values in the group. If there are no non-NULL input rows then sum() returns NULL but total() returns 0.0. Which aggregate function can return NULL values? Aggregate functions,
What Does Question Mark Mean In Kotlin? In Kotlin, the “billion dollar mistake” has been solved by forcing the programmer to express nullability explicitly in the type of a variable. By appending a question mark to the type, we let the compiler (and other programmers) know that the variable is nullable. What does :: mean
What Is Different Between Null And Undefined? null is a special value meaning “no value”. null is a special object because typeof null returns ‘object’. On the other hand, undefined means that the variable has not been declared, or has not been given a value. IS NULL === undefined? As you can see so far,