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

What are logic- or time-bombs, What are Logic- or Time-Bombs ? It execu...

What are Logic- or Time-Bombs ? It execute the payload while predetermined event occurs. For instance use kind's particular phrase and particular data is reached.

Instance of a SyntaxTree object is null. I don''t know why.?, I have been w...

I have been working on my compiler''s parser now. And for some reason i cant make my parse tree printer to work. SyntaxTree keeps on showing as null when i invoke the print() metho

What is alternate text, What is Alternate Text ? The APPLET element ca...

What is Alternate Text ? The APPLET element can have an ALT attribute. An ALT attribute is used through a browser which understands the APPLET tag but for some purpose cannot

I need java expert with tomcat tuning experience, I need Java expert with t...

I need Java expert with tomcat tuning experience Project Description: Require a Java expert to fix memory issues with tomcat. Skills required: Java, Apache

Tasks with the classes Currency, In this assignment you work on a set of ta...

In this assignment you work on a set of tasks with the classes Currency, Money and Bank. Money and Currency You have been given a template for the Currency and Money classes (Lab1.

Explain what is local variable, Explain what is Local Variable ? Declar...

Explain what is Local Variable ? Declaring variables (using the var keyword) inside a function forms them local. They are available only inside the function and hold no meaning

Exception handling in EJB, Java has two kinds of exceptions: 1. Checked ...

Java has two kinds of exceptions: 1. Checked exception: handled from java.lang.Exception but not java.lang.RuntimeException. 2. Unchecked exception: handled from java.lang.Ru

JAVA APPLET GAMES, WHAT IS THE INTRODUCTION OF JAVA APPLET GAMES IN CONNECT...

WHAT IS THE INTRODUCTION OF JAVA APPLET GAMES IN CONNECT4

What is the purpose of garbage collection in java, What is the purpose of g...

What is the purpose of garbage collection in Java, and when is it used? The purpose of garbage collection is to identify and discard objects that are no longer required by a pr

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