Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Entities,”Can be objects, events, concepts[…]
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Attributes,”EllipseMay be candidate or primary identifiers, multivalued
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Attributes,”EllipseMay be candidate or primary[…]
Read morerelationships,”DiamondDegree- unary/ recursive, binary
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.relationships,”DiamondDegree- unary/ recursive, binary ternaryCardinality-[…]
Read moreCardinality possibilities
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Cardinality possibilities Mandatory onemandatory manyoptional[…]
Read moreThree types of maximum cardinality
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Three types of maximum cardinality[…]
Read moreIdentifiers / key
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Identifiers / key an attribute[…]
Read moreCandidate identifier/keys
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Candidate identifier/keys an attribute or[…]
Read morePrimary identifier vs. alternate identifier,”(e.g., ID vs. first, middle
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Primary identifier vs. alternate identifier,”(e.g.,[…]
Read moreCriteria for identifiers,”-won’t change in value-will not be null-Avoid intelligent identifiers (e.g., containing locations or people that might change)-In general, substitute new, simple keys for long
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Criteria for identifiers,”-won’t change in[…]
Read moreDon’t want name as primary identifier
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Don’t want name as primary[…]
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