Question

What is Null? What happens when your perform arithmetic calculations on NULL values?


It is for 25 points!!


Who will answer first i will mark His/Her answer as brainliest answer!!


DO NOT COPY FOR NET!! LAZY ANSWERS WILL DELETED ON SPOT!!

Answer 1

Hi friend,

NULL or null pointer is a character with numeric value 0 and is generally used for an uninitialized, undefined, empty, meaningless value or byte which has all its bits set to 0.

It can also be thought of a literal that does not refer to any object.

If NULL values are involved in arithmetic operations or when we perform our arithmetic calculations on NULL values, the result will be numeric NULL values.

Hope it helps!

Answer 2

Nul is a special mark

it use in to indicate that a data value doesn't indicated in data base. .
SQL Null serves to fulfil the requirement that all true relational database management systems (RDBMS) support a representation of "missing information and inapplicable information".

that is a symbol (ω) greek omega lowercase used for represent null in data base theory ..


when NULL values are involved in arithmetic operations, the result will be numeric NULL values.