what is the difference between primary key & foreign key?

Answer Posted / gajendra jain

A table can have only one Primery key but it can have any number of Foreign key.

Is This Answer Correct ?    0 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How to connect asp pages to oracle servers?

571


What are the system predefined user roles?

585


What are the different types of modules in oracle forms?

556


How to bring a tablespace offline?

540


How many types of auditing in Oracle?

566






What are the different windows events activated at runtime ?

2408


What do you mean by a deadlock?

515


How to grant create session privilege to a user in oracle?

568


Tab A A B ------ 1 A 2 B 3 C Tab B A B ----- 4 D 5 E 6 F Generate the value into B table from A table. Only table A has the value. Write the SQL query to get B table value.

1260


What is the best way to do multi-row insert in oracle?

561


What is a schema in oracle?

542


What are the common oracle dba tasks?

620


State the difference between a primary key and foreign key?

515


What is bind variable in oracle 11g?

587


Explain cascading triggers.

573