1.

The NULL value also means ___________(a) value equal to zero(b) unknown value(c) negative values(d) a large valueI have been asked this question by my college director while I was bunking the class.My enquiry is from MySQL Setup topic in chapter General MySQL Use of MySQL

Answer»

The correct ANSWER is (b) unknown value

The EXPLANATION is: The NULL value in MYSQL is a SPECIAL value. It represents ‘no value’ or an ‘unknown value’. A NULL value can’t be compared like NORMAL known values since it gives undesirable results.



Discussion

No Comment Found

Related InterviewSolutions