What is a null value and how does it affect arithmetic or string operations in SQL statements?
What will be an ideal response?
A null value is a column value that does not exist. An arithmetic or string concatenation operation evaluates to null if one of the input columns is null. For example, the expression 10 multiplied by null equals null. In addition, combining a text string with a null value results in a null value.
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Answer the following statement true (T) or false (F)
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Answer the following statement true (T) or false (F)
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The high-speed connection point between networks.
What will be an ideal response?