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.
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.
In Database Analysis and Design; the relationship in an ERD can only be mandatory or optional between two entities. Mandatory is where both entities must be present, whereas with optional, you don't always need two entities.
The difference between Mandatory and Optional Triggers is that Optional ones say 'you can', Mandatory ones don't. Mandatory ones must be carried out if possible, even if you don't want to.Man-Eater Bug's effect is a Mandatory Trigger, it must activate, even if the only thing it can destroy is itself.
Rationing is a Mandatory thing during a war Dieting is optional R U SERIOUS? WHO ASKED THAT?
directory and mandatory
Mandatory means you have to do it, no questions asked. Necessary means its good to do it but you don't have to but they recommend it.
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The difference between line relationship and staff relationship is that, line relationship receives command from the top management, while staff relationship is managed by all staff.
Indian pharmacopoeia is mandatory in India for registering medicinal products and British pharmacopoeia is mandatory in MHRA.
A symbiotic relationship is a relationship between 2 organisms. Socialism is a form of government.
The difference is what it is
Structure refers to the physical characteristics or arrangement of components, while function refers to the purpose or role of those components. The relationship between structure and function is that the structure of an object or organism often determines its function - the way something is built or organized influences how it works or what it does. For example, the shape of a bird's wings is structured for flight, which is its function.