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

Difference between inheritance and polymorphism, Question 1: a) What is...

Question 1: a) What is the meaning of an object-oriented programming? b) List eight simple types of data in Java c) Explain how objects and classes are closely related.

What is numeric promotion, What is numeric promotion? Numeric promotion...

What is numeric promotion? Numeric promotion is the conversion of a smaller numeric type to a larger numeric type, so that integer and floating-point operations may take place.

What is my personal agent, What is "My Personal Agent"? My personal age...

What is "My Personal Agent"? My personal agent is a computer programme which work automatically and have voice interface.

Develop program using interactive brokers api, Develop Program using Intera...

Develop Program using Interactive Brokers API Project Description: We require a Matlab function using the Interactive Brokers API for real time trading with three arguments:

Web application using javascript-xml and css, Journal of how you came to AU...

Journal of how you came to AUB Write a web application using JavaScript, XML and CSS that contains a journal of major events and places on your journey to Bond University. The

Life span of variables, While you declare a variable in a function, the var...

While you declare a variable in a function, the variable can be accessed within that function only.  While you exit the function, the variable is destroyed.  These variables are ca

Describe interfaces in java langauge, Describe Interfaces in java langauge?...

Describe Interfaces in java langauge? Interfaces are the further level of abstraction. An interface is like a class along with nothing but abstract methods and final, static fi

What is switchaction, The SwitchAction class gives a means to switch from a...

The SwitchAction class gives a means to switch from a resource in one module to another resource in a dissimilar module. SwitchAction is useful only if you have multiple modules in

What is an aspect, An aspect is the cross-cutting functionality that you ar...

An aspect is the cross-cutting functionality that you are executing. It is the aspect of your application you are modularizing. An example of an aspect is logging. Logging is somet

Develop a 3d rolling alarm clock, Need to develop a 3D rolling alarm clock ...

Need to develop a 3D rolling alarm clock (Android) Project Description: I want an android app as 3D rolling alarm clock It should have sound effect when setting the alarm

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