Tags MySQL Oracle Database

Animals & Plants Arts & Entertainment Auto Beauty & Health Books and Literature Business Electronics Engineering & Technology Food & Drink History Hobbies Jobs & Education Law & Government Math People & Society Science Social Studies Sports Travel & Places

0

Subjects>Electronics>Computers

What are the properties of primary key?

Anonymous

∙ 12y ago

Updated: 12/11/2022

data cannot be repeated

Wiki User

∙ 12y ago

Still curious? Ask our experts.

Chat with our AI personalities

Rene

Change my mind. I dare you.

Chat with Rene

Rafa

There's no fun in playing it safe. Why not try something a little unhinged?

Chat with Rafa

Blake

As your older brother, I've been where you are—maybe not exactly, but close enough.

Chat with Blake

Add your answer:

Earn +20 pts

Q: What are the properties of primary key?

Write your answer...

Submit

Still have questions?

imp

Trending Questions

Does primary storage consists of RAM and ROM chips? what is least likely to be considered an important component of effective student instruction involving the use of interactive software? Who is the inventors of early computing device? How do you measure a half a pint of sour cream? How much area does a portable air conditioning unit keep cool? Can I connect any devices other then computers to my network hub or switch? How do you find the tow capacity of a 2004 Liberty? What are the components of a project plan? Where is the ip address on my TCL ROKU TV LOCATED? How many hackers are there? What are disadvantages of low tillage? What does erectile dysfunction mean? What is the specific use of Alien Ware laptops? Is there a replacement fiber optic motor for decorations? Can you execute a shell script if you do not have read permission for the file containing the script? Is there a converter from PDF to JPGE? What do you do when a file is corrupted on Linux? Where do permanently deleted files go and How can you delete them in the place where they are? DOS software uses a user interface and menus that users control with the keyboard? Download driver creative no10225 vf-0040?

Related Questions

What is the primary key for the properties table?

Primary key is to set property ID as the primary key for the properties table.

What are properties of a primary key?

The properties of primary key are as follows: 1. It should be unique. 2. It should be not null.

Which field MS Access will not allow you to delete?

A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.A primary key field.

When was Primary Health Properties created?

Primary Health Properties was created in 1995.

Can super key be as primary key?

I think super key is treated as the primary key because in a table their will be only one primary key.

What are the importance of primary key?

Importance of primary key

What does the primary key in a data base do?

We know that primary key is the one that is not null and is always unique. A primary key uniquely identifies a record in a table.

What are the advantage of primary key?

Primary key that is used to identify a record uniquely. Primary key is a key that always unique and not null. A system generated primary key is called surrogate key.Primary key is the one which is always unique and not null. Advantage of primary key that it helps in identifying a tuple uniquely.

How you create or assign primary key?

A primary key is never null and is also unique . Example of primary key is create table emp (ecode integer NOT NULL PRIMARY KEY);

Why do you designate one of the candidate key of relation to be the primary key?

We designate one of the candidate key of a relation to be a primary key because that primary key is use for any foreign key references.

What is the key difference between a primary and secondary amine in terms of their chemical properties and reactivity?

The key difference between a primary and secondary amine is the number of carbon atoms attached to the nitrogen atom. In a primary amine, there is one carbon atom attached to the nitrogen, while in a secondary amine, there are two carbon atoms attached. This difference affects their chemical properties and reactivity. Primary amines are more reactive than secondary amines because the lone pair of electrons on the nitrogen atom is more available for reactions in primary amines.

Candidate key and primary key differnece?

All Primary keys are definitely Candidate Keys. A Candidate key is one which can be used as a Primary key that is not null and unique. That is one of the candidate keys can be chosen as a primary key.A Candidate key is a Unique Key and it can be used to find out any particular Tuple (row) in a table. The following are the differences between A Candidate key and a Primary Key: 1) A Unique key can be null but not a Primary key 2) On a table we can have only 1 primary key but 'N' number of unique keys.

Still have questions?

imp

Resources

Top Categories

Product

Company

Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.