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Bermet Bermet
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6 years ago
Explain what is meant by a null value. Is a null value the same as a value of zero?
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#1
6 years ago
Essentially, setting the value in a given field to null is similar to not entering a value in the field at all. Nulls are used when a value is missing, unknown, or inapplicable. It is not the same as a blank or zero value, both of which are actual values. For example, a value of zero in the Balance field for a particular customer indicates that the customer has a zero balance. A value of null in a customer's Balance field, on the other hand, indicates that, for whatever reason, the customer's balance is unknown.
Bermet Author
wrote...
#2
6 years ago
Good answer
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