answersLogoWhite

0

strong entity : in this the attributes must have values for instance .

weak entity : in this the attributes may or may not have values for instance .

User Avatar

Wiki User

14y ago

What else can I help you with?

Related Questions

What is the difference between single-valued attributes and simple attributes?

single valued attribute are one character in a record


What is the difference between a mandatory and optional referendum?

A mandatory referendum is required by law for certain issues, while an optional referendum is not required but may be held at the discretion of the governing body. In a mandatory referendum, the public must vote on the issue, whereas in an optional referendum, the governing body decides whether to seek public input through a vote.


What is the difference between a mandatory relationship and optional relationship?

A mandatory relationship is when you HAVE to do it. Kind of like when people are "arranged". An optional relationship is where you have the right to chose.


What is the difference between a compulsory counterclaim and a permissive counterclaim in legal proceedings?

In legal proceedings, a compulsory counterclaim is required to be brought up by the defendant, while a permissive counterclaim is optional and can be brought up at the defendant's discretion.


How do you find the difference between two arrays in Java?

for arrays you can list the different arrays and what attributes that you give to them.


What is the difference between a prerequisite and a recommended course?

prerequisite is required


Is there any difference between competence and competency?

A definition of 'Competence': "Demonstrating the knowledge, skills, experience, and attributes necessary to carry out a defined function effectively." A definition of 'Competency': "The description of the knowledge, skills, experience and attributes necessary to carry out a defined function effectively." In other words competencies describe what has to be done and how well. Competence is doing the required things to the required standard. Competence in a job therefore means being competent at all aspects of each function (competency) required to be performed within the role. See http://www.customs.govt.nz/about/Careers/Requirements/Preparing+a+Competency+Based+CV+for+Job+Applicants/What+is+the+difference+between+Competencies+and+Competence.htm


What is the difference between voluntary insurance?

Voluntary insurance is optional and typically offered by employers to employees to supplement their core benefits. It allows employees to choose additional coverage based on their individual needs. In contrast, mandatory insurance is required by law or an employer, and employees must participate in the coverage provided.


What is the difference between a Camry LE and a Camry XLE?

XLE has automatic heated lether seats, heated mirrors (sometimes optional) and sometimes climate control. Also XLE has V6, when for CE it was optional.


What is the difference between include and require?

include is optinal and you have to have required things.


What is the primary difference between rating scales and ranking scales?

ranking deals with multi choice and rating is fixed with attributes


What is the difference between strength and hardness?

The difference between strength and hardness is that the strength refers to the force that is present between the bonds. Strength attributes to how strong or weak the force between the bonds. Hardness refers to the nature of the force, which basically is how rigid or flexible the bonds between particles.