When we can declare a column as Unique and Not Null both at
the same time. What is the use pf Primary Key then?
- 2 Answers
- 16169 Views
- Accenture, Unisoft Infotech, I also Faced
- E-Mail Answers
Answer Posted / thanga prabu.n
Unique Key creates Non-Cluster index in default,
But in Primary Key creates Cluster index in default
| Is This Answer Correct ? | 16 Yes | 1 No |
Post New Answer View All Answers
How do I run a query in pl sql developer?
What is a variable in sql?
Describe different types of general function used in sql?
How consistent is the view of the data between and within multiple sessions, transactions or statements ?
Define implicit and explicit cursors.
Enlist the characteristics of pl/sql?
Is left join faster than inner join?
What are the advantages of indexing?
What is a system versioned table?
Explain the uses of database trigger.
What is meant by truncate in sql?
How do I order by ascending in sql?
How many aggregate functions are available there in sql?
What are the different parts of a package?
Does sap use sql?
