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

Describe exception classes, Java Programming 1. Discuss any five buzz w...

Java Programming 1. Discuss any five buzz words in Java. 2. Describe exception classes and also explain common exceptions in java. 3. Describe primitive and abstract data

Calculates number of negative and positive numbers in array, Question 3 ...

Question 3 Using this line: var posneg : array [1..15] of integer; Write a program that calculates the number of negative and positive numbers in the array. Users will

Program to insert item in tree, public class TreeTest {     public static v...

public class TreeTest {     public static void main(String args[])     {         Tree t = new Tree ();         System.out.println("Populating");         t.insertItem(1);         t

What is aop(aspect oriented programming)?, Separating your business logic w...

Separating your business logic with other functionality such as services, Loggers etc, making classess more cohesive.

Need an engineer for flex reporting tool, Need an engineer who has knowledg...

Need an engineer who has knowledge working on Flex Reporting tool. Who knows how data needs to be taken care of from DB, SharePoint, ERP and then process using logic/intelligence u

program to brute force search, Introduction As an alternative to the B...

Introduction As an alternative to the Binary Search algorithm, also it could be done by the brute-force method given below. public static int rank(int key, int[] a) {     f

Explain different advice types in spring, 1) Around : org.aopalliance.inter...

1) Around : org.aopalliance.intercept.MethodInterceptor 2) Before : org.springframework.aop.BeforeAdvice 3)  After : org.springframework.aop.AfterReturningAdvice 4) Throws

Implement relationship using a java program, Implement relationship using a...

Implement relationship using a java program. Assume each course has a course title, code, subject and number of credits while each student has a name, registration number, list of

How to returning multiple values from methods, How to Returning Multiple Va...

How to Returning Multiple Values From Methods ? It is not probable to return more than one value from techniques. You cannot, for example, return the licensePlate, speed and m

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