Interested to Buy Any Domain ? << Click Here >> for more details...
what is primary key,unique key, foreign key? can u teach me
in simple language?
- 44 Answers
- 187585 Views
- Banking, CMC, CTS, HCL, Infosys, Keggfarms, SkyEss, Sunrise, TCS, Web Synergies, Wipro, I also Faced
- E-Mail Answers
Answer Posted / kavita ahuja
primary key is an attribute or set of attribute of a table
that uniquely identified each record whereas foreign key is
the attribute that is used to create relation between two
tables.and the values for foreign key must match with the
values of primary key to which it refers.
| Is This Answer Correct ? | 21 Yes | 12 No |
Post New Answer View All Answers
Explain database partitioning. What is its importance?
If the master device is full, how do I make the master database bigger?
What is ase database?
What is the relationship that exists inside in E-R diagram?
How to shrink a database?
Does facebook use graph database?
I have single column in a file. Input 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 my output is file 1 have 1,2,3,10,11,12 file 2 have 4,5,6,13,14,15 and file 3 have 7,8,9 how is it possible in datastage
What is a database call?
What are database connection details?
What is database server and how it works?
What is aws documentdb?
What is ole db used for?
What are different types of clusters present?
What is the use of default key?
i applied prompt on country when i run report it shows list of all countries but want it to show only four countries name
