define the terms i entity type ii entity
Define the terms i) Entity type ii) Entity set
Entity type: An entity type describes a collection of entities that have the similar attributes.
Entity set: The set of all entities of the similar type is termed as an entity set.
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define null valuesin some cases a certain entity may not have an applicable value for an attribute or if we do not know the value of an attribute for
q what is the kind of reproduction that occurs in roundworms what usual feature do nematode sperm cells havenematodes reproduce sexually the nematode
q what are the major human diseases caused by roundwormsthe major human diseases caused by nematodes are ancylostomiasis ascariasis hookworm
explain roughness width and roughness width cut offroughness width - roughness width is the distance parallel to the normal surface between
define the terms i entity type ii entity setentity type an entity type describes a collection of entities that have the similar attributesentity set
q nematode identity card how are nematodes characterized according to examples of representing beings type of symmetry basic morphology germ layers
what is meant by the degree of relationship setthe degree of relationship type is the number of participating entity
define the terms i key attribute ii value set key attribute an entity type usually has an attribute whose values are exact from each individual
q what are the few examples of annelidsearthworms lugworms and leechesq which are the morphological features that differentiate the beings of the
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