what is null value?

Answer Posted / mohit gupta

Null is a value that is unavailable, unassigned and unknown.

Is This Answer Correct ?    3 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is Virtual Private Database in Oracle?

624


How to write date and time literals in oracle?

555


How to export several tables together?

568


What is Java Pool in Oracle?

604


How to find the duplicate rows count from employees table in oracle?

554






What is a initialization parameter file in oracle?

584


What are the different types of partitions in oracle?

496


Explain how are indexes update?

623


How can we find out the duplicate values in an oracle table?

609


How to resolve name conflicts between variables and columns?

572


How to use "if" statements on multiple conditions?

723


What is an anonymous block?

625


How to define default values for formal parameters?

598


How to delete a column in an existing table in oracle?

603


How to add another datafile to a tablespace?

578