What Is Null?

1.	What Is Null?
Answer» ORACLE has a specific VALUE called null which is neither EQUAL nor not equal to any value. In addition, null is neither true nor false. A value can be CHECKED for null using SPECIAL operator called IS NULL or IS NOT NULL Oracle has a specific value called null which is neither equal nor not equal to any value. In addition, null is neither true nor false. A value can be checked for null using special operator called IS NULL or IS NOT NULL

Answer»

ORACLE has a specific VALUE called null which is neither EQUAL nor not equal to any value. In addition, null is neither true nor false.
A value can be CHECKED for null using SPECIAL operator called IS NULL or IS NOT NULL

Oracle has a specific value called null which is neither equal nor not equal to any value. In addition, null is neither true nor false.
A value can be checked for null using special operator called IS NULL or IS NOT NULL

Discussion

No Comment Found

Related InterviewSolutions

Can You Import Objects From Oracle Version 7.3 To 9i?
Suppose A Column Has Many Repeated Values. Which Type Of Index You Should Create On This Column?
If A Table Has Few Rows, Should You Create Indexes On This Table?
How Do You Capture An Exception In Oracle?
What Is Recursive Sql?
What Are Different Types Of Cursors?
Can You Pivot The Results Of A Query?
What Is Null?
What Is Execute Immediate?
What Is A Database Link? What Is The Difference Between A Public And A Private Database Link? What Is A Fixed User Database Link?

What Is Null?

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment