what is the difference between primary key and foreign key?

Answer Posted / aaa

combination of columns is called primary key and columns in
one table whose primary key matches with other table is
foreign key

Is This Answer Correct ?    0 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

c ka base kya hota hai? what is communication?

4721


hi ,,,,I m going to attend corporate bank exam of specialist IT officer, I don't Know What type of question arise in interview..some suggest me my email id is surinder.singh.btech@gmail.com

1563


Hi I want to know how API gravity has been come up with in Oil Industry, especially figures in the following formula: API=(141.5/SG)-131.5

1646


I am looking for NIC Scientific Officer / Engineer-SB (Programmer)Sample papers or any portion of questions/ syllabus plz, send me on sengupta.pranab@gmail.com. Regards PRANAB

1938


what is node class?

1748






Is Diesel staorage tank ( 800 litres) cleaning procedure is available with any body

1585


why unix commands simpler rather than complex task

2378


what is the use of typedef in c language?

1548


what is the program to find out the smallest word in a sentence? like if the sentence is : this is my room. then out put will be : is

1320


Tell me about urself? asked me qstns on my resume what about higher studies any plans? where do u find urself after 3-4

1614


Do you have any tips for using 3G phones?

1436


Client server applications

1168


How to control the Relative humidity in Air handling unit in Pharmaceutical company ,the AHU is comprised with DX system(Cooling coil) and dry heaters. We are facing the RH issue low side and higher side.

902


CSS corp interview process and placement papers

1495


Hello sir i finished my BE computer 2009 batch. I'm not gud at programming like 0 knowledge and i'm not interested in it too . Except this programming field is anyother option to afford into a new one ??????? can anyone help me plz

1602