what is the difference between primary key and unique key?
- 2 Answers
- 3724 Views
- KTree, TCS, I also Faced
- E-Mail Answers
Answer Posted / karishma39malik@gmail.com
primary key means... a key that is unique among all keys.. n
has no duplicate values and no repeated columns...
unique key is a key defined uniquely among all keys...
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
how to convert infix expression to prefix expression?
qtp 9.2 14 days demo version was expired.I uninstalled how to reinstall this again
Which design patterns have you used?
You are given some denominations of coins in an array (int denom[])and infinite supply of all of them. Given an amount (int amount), find the minimum number of coins required to get the exact amount. What is the method called?
Tag for turning an image into a hyperlink is
When we have two versions of the dot net installed how does the compiler know which version of DLL it has to select to an application.
What is the purpose of
What do you understand by modular programming?
Hai, My name is nisha.I have NIC exam.If anybody Knows NIC previous paper pattern pls send me to nishanairp@gmail.com
can u send some model papers how computer awareness questions are asked in goverment jobs(oriental insurance)to my mail id me.priyankapadma@rediff.com
how to hide prompts
What's the difference b/w Table & Templete in Smartform?
what are the 3 forms of a prolog term
What is the use of Differ interface check box in Ship confirm?
How to connect to ms word wit VB ojective is to prepare s/w to generate question paper , selects questions randomly from the ms access , database
