Interested to Buy Any Domain ? << Click Here >> for more details...
what is the difference between primary key & foreign key?
- 57 Answers
- 137472 Views
- CTS, Infosys, La Multi, Sparsh, Wipro, I also Faced
- E-Mail Answers
Answer Posted / o p yadav
primary key is the unique value,but its not nul values..
this kry is avoided dublicate values
foreign key is always references the primary key and allow null value.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What are the data types in oracle?
In Oracle Applications We are Using Sub Ledger Accounting. When we Transfer the Data all modules (AP,AR,CE,FA) to SLA We done Some customizations? What are They??
How many file formats are supported to export data?
How to convert characters to numbers in oracle?
Which dictionary tables and/or views would you look at to diagnose a locking issue?
How to create an oracle database manually?
How to recover a dropped table in oracle?
What is materialized view in Oracle?
what are the advantages of running a database in archive log mode?
What are the general rules on data consistency?
What is oracle join syntax?
Can we store images in oracle database?
What is the difference between translate and replace in oracle?
What are group functions in oracle?
How to execute the package in oracle?
