Interested to Buy Any Domain ? << Click Here >> for more details...
what is unique key?
- 14 Answers
- 26912 Views
- Amazon, Cap Gemini, Infosys, Wipro, I also Faced
- E-Mail Answers
Answer Posted / guest
It is a constraint used to avoid duplication of values
within the row of a specified column or set of columns in a
table. It can also allow null values
| Is This Answer Correct ? | 20 Yes | 5 No |
Post New Answer View All Answers
Where is the export dump file located?
Explain what are the different type of segments?
How do you store pictures in a database?
How to define an anonymous procedure without variables?
Explain the use of record option in exp command.
How to use in conditions in oracle?
HI Friends Myself Manoj,i am from bengaluru.i have 1 yr of exp in PLSQL but not upto the mark..now attending interviews but m not able to clear even 1 round..i have attended 3 interviews till today.purpose of writing this query is,i want to know the intreview topics that interviewer going to ask frequently,mainly SCENARIO based questions.IF anybody have any PLSQL projects please give it to me,it will helps me alot.Thanks for your patience.
Why is oracle used?
How to set up autotrace for a user account?
What are a query and state the different types of queries and their uses?
How to get a create statement for an existing table?
How do we represent comments in oracle?
What is the difference between sharding and replication?
What is truncate oracle?
WHAT IS THE DEFINITION OF DEFAULT CUSTOMER IN AR?
