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Hey, I need help . For each of the following constraints give a one-sentence explanation of what the constraint implies, and why it is required.
Hey, I need help . For each of the following constraints give a one-sentence explanation of what the constraint implies, and why it is required. The relations are given below
Given the relations below: relations Collection(CID, date, SID) Tuples here represent entire collections from a field trip, where CID is the collection ID, date is the starting date of the field trip, and SID is the staff ID of the collector Collected(CID, AN) A tuple here represents the fact that collection CID includes artifact number AN. A single collec- tion usually contains multiple artifacts, and a single artifact may be aggregated from more than one collection Artifact(AN, species, type, location, SID) Tuples here represent single artifact collected in the field. AN is the artifact number, species is the scientific species name, type is one of tissue, image, model, or live, location is where it was collected, and SID is the staff number of the technician who maintains this artifact. Publish ed(AN, journal, date) A tuple here represents the fact that artifact AN was mentioned in scholarly publication journal with publication date date. Staff(SID, name, email, rank, date) These tuples represent a member of the institute's scientific staff. SID is the staff ID, name is their full name, email is their profession al email, rank is one of technician, student, pre-tenure, or tenured, and date is the date when they attained that rank. COL(family) A singleton tuple here means that family is a scientific zoological family name that appears in the Catalogue of Life Genus(genus, family) A tuple here means that genus is in family family. Species(species, genus) A tuple here means that species is in genus genus For each of the following constraints give a one sentence explanation of what the constraint implies, and why it is required Tispecies(Artifact) - Tspecies(Species) = 0. Trank(Staff) {'technician', 'student', 'pre-tenure', 'tenure'). Tfamily (Genus) family (COL) = 0. Tigenus (Species) Tigenus (Genus). TCID(Collected) = TCID(Collection), TAN(Artifact) = TAN(Collected). Tsip(Collection) Tsip(Staff). Tsip Arti fact) C TSID(Staff). Ttype (Artifact) {'tissue','image', modell, live} TAN(Published) STAN(Artifact)Step by Step Solution
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