Web1. name → address decomposition on fd1 2. name → gender decomposition on fd1 3. name → rank transitivity on 1. and fd2 4. name, gender → salary 3. & pseudo-transitivity on fd2 WebJul 3, 2024 · Find the canonical cover of FD {A->BC, B->AC, C->AB} in DBMS. Canonical cover is called minimal cover which is called the minimum set of FDs. A set of FD FC is called canonical cover of F if each FD in FC is a Simple FD, Left reduced FD and Non-redundant FD. Simple FD − X->Y is a simple FD if Y is a single attribute.
Candidate Key Finding Candidate Keys Examples
http://cis.csuohio.edu/~sschung/cis611/ENACh11-Further-Dependencies_Chap16.pdf WebApr 19, 2024 · A portal for computer science studetns. It hosts well written, and well explained computer science and engineering articles, quizzes and practice/competitive … pa siis access
DBI202-Lab-2-Submit.docx - Lab 2 Functional dependencies...
WebAB → C is a nontrivial dependency. Since C cannot determine A and B. C → D is a nontrivial dependency. Since D cannot determine C. D → A is a trivial dependency. Since D → A and C → D leads to C → A and AB → C and C → A lead to AB → A which is clearly a trivial dependency. AB, BC, and BD are the keys to the given relation (AB ... WebA hierarchical data model is a data model in which the data is organized into a graph-like structure. d. None of the others. a. QN=9 (6806) A person who is responsible for the structure or schema of the database is called: a. an end user. b. a database administrator. c. a database analyst. d. all of the others. Webrelation for each partial key with its dependent attribute(s). Make sure to keep a relation with the original primary key and any attributes that are fully functionally dependent on it Third No transitive dependencies. Relation should be in second normal form and should not have a non-key attribute functionally determined by pa siis application