IBM
A2090-560 · Question #133
A2090-560 Question #133: Real Exam Question with Answer & Explanation
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Question
When creating a table, you can specify a column constraint for each individual column of either "NULL" or "NOT NULL". When column values are later evaluated within a query statement, which of these is true?
Options
- A0 is equal to null, the empty string ( '' ) is equal to null.
- B0 is equal to null, the empty string ( '' ) is not equal to null.
- C0 is not equal to null, the empty string ( '' ) is equal to null.
- D0 is not equal to null, the empty string ( '' ) is not equal to null.
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