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

Write a function that draws a cow , Write a function that draws a cow at a ...

Write a function that draws a cow at a certain location on the screen, and use the function to draw a herd of cows

Write a program on clearing rectangles, Write a program on clearing Rectang...

Write a program on clearing Rectangles ? It is also potential to clear a rectangle that you've drawn. The syntax is exactly what you'd expect: public abstract void clearRect

Difference between boolean & operator and && operator, How can we define th...

How can we define the difference between the Boolean & operator and the && operator ?

Difference between static and non-static variable, What is the difference b...

What is the difference between static and non-static variables? A static variable is associated with the class as a whole rather than with specific instances of a class. Non-st

What is overloading explain with an example, What is Overloading explain wi...

What is Overloading explain with an example? Overloading is while the similar method or operator can be used on several different kinds of data. For example the + sign is used

Applet program, file download from server using applet and tomcat server

file download from server using applet and tomcat server

Concurrent Programming, Problem 1 A savings account object holds a non-nega...

Problem 1 A savings account object holds a non-negative balance, and provides deposit(k ) and withdraw(k ) methods, where deposit(k ) adds k to the balance, and withdraw(k ) subtra

Java and Arrays, AskWrite an application that uses an Array to store 10mess...

AskWrite an application that uses an Array to store 10messages of type String. You will store this Array with 10 messages of your choosing. For example, a message could be “I love

Data access objects (DOA) in JDBC, Business Objects represent the data cl...

Business Objects represent the data client. They are the objects that need access to the datasource to obtain and store data. Data Access Objects abstract the relying data access i

Explain multi dimentional arrays in java, Explain multi dimentional arrays ...

Explain multi dimentional arrays in java? So far all these arrays have been one-dimensional. That is, a single number could locate any value in the array. Therefore sometimes 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