Why there is a need to use primary key in database, JAVA Programming

Assignment Help:

Why there is a need to use primary key in database ?

Primary key is a constraint basically used in datdabase to uniquely identify the records in the database.


Related Discussions:- Why there is a need to use primary key in database

Array, public class Tester { static void test(int[] a) { int[] b = new in...

public class Tester { static void test(int[] a) { int[] b = new int[2]; a = b; System.out.print(b.length); System.out.print(a.length); } public static void main(String[] arg

Java error handling mechanism, Errors: When a dynamic linking failure or ...

Errors: When a dynamic linking failure or some other "hard" failure in the virtual machine happens, the virtual machine gives an Error. Typical Java programs could not find Error

What is the difference between SOA and a Web Service, Normal 0 ...

Normal 0 false false false EN-US X-NONE X-NONE

Program that receives two integer inputs from a user, Question 4 Write ...

Question 4 Write a program that receives two integer inputs from a user, an ending value, lastvalue and column, column. The program will display all numbers from 1 to lastvalue

Can a human doctor be replaced through an expert system, Can a human doctor...

Can a human doctor be replaced through an Expert System? Give reasons to support your answer. Expert System is a computer system that simulates the knowledge and expertise of a

Explain any five buzz words in java, Question 1 Explain any five buzz word...

Question 1 Explain any five buzz words in Java Question 2 Explain exception classes and also explain common exceptions in java Question 3 Explain primitive and abstract data t

What is a local member and a class variable, What is a local, member and a ...

What is a local, member and a class variable? Variables declared within a method are "local" variables. Variables declared within the class i.e not within any methods are "m

The tic-tac-toe program, Instructions Modify the program so that the co...

Instructions Modify the program so that the computer will generate moves for the ‘O' player (it must continue to accept user input for ‘X'). A simple way to do this is to use a

Custom website technical specification document, Custom Website Technical S...

Custom Website Technical Specification Document A Solution provider / System Architect to interpret and speak with me and build business functional needs and a set of research d

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd