what is null value?
Answers were Sorted based on User's Feedback
Answer / ashu_deepu
most generally confuse the null value with zero.
but zero is different then null.
null can be understand as unknown value.
Is This Answer Correct ? | 3 Yes | 1 No |
Answer / mohit gupta
Null is a value that is unavailable, unassigned and unknown.
Is This Answer Correct ? | 3 Yes | 2 No |
Answer / guneetinder singh
Null is not a value but we can say it is unknown.
Is This Answer Correct ? | 4 Yes | 4 No |
Null value is that value which is neither zero or space or
any character.This value is defined by Oracle server, and
hence cannot be described.Also every null value generated
by server is unique than another..hence we cannot compare
it with character, numeric or date functions.
Is This Answer Correct ? | 4 Yes | 4 No |
Answer / kuldeep singh
Null value is that value which is neither zero or space or
any character.null is not a value its just a concept to
avoid all values.
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / bharat_itstud
null value is a value i.e. unavalable, unknown & it is
equal to nothing.....
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / sachin
A null value is not defined,applicable,available,known .
It can be a blank space or it can be a zero but it is not
equal to either zero or blank space......
Is This Answer Correct ? | 0 Yes | 1 No |
What is recycle bin in Oracle?
In the oracle version 9.3.0.5.0, what does each number shows?
What is a Garbage Collection? and what is full recursive Garbage collection?
Table1- have two column filename data AFGDFD-20112011 hi how r u bsdasd-23042011 name shoud be in bold Now i want output like filename data AFGDFD hi how r u bsdasd name shoud be in bold Kindly answer this
i deleted 4 records form the table.after i have applied commit .now i want to get back those records.how?
How to rename an index?
What is a Public Synonyms ?
What do you understand by a database object?
How do we switch from init.ora file to asp file?
I have a table that log salary-increase-process have fields: autoid, old_salary, acctno and table EMP: acctno, name, salary I want to list count increase-salary of employees, each have old_salary, new_salary. Help me with SELECT statement, please!
How to get last row id?
21. Using a set operator, display the client number of all clients who have ever placed an order and whose whose name does not contain the string Sm.