Functional dependencies play a crucial role in database design, normalization, and ensuring data integrity. They help to identify and eliminate redundant data and provide a basis for organizing tables and defining relationships. Functional dependencies can be used to determine candidate keys, which are ...
What are Armstrong's Axioms in Functional Dependency in DBMS?Armstrong axioms are a complete set of inference rules or axioms, introduced and developed by William W. Armstrong in 1974. The inference rules are sound which is used to test logical inferences of functional dependencies. The axiom ...
Several prominent DMBSs that I know continue using the SQL-92 rule, while another one detects functional dependencies due to keys only. I think MySQL is now the DBMS with the most complete implementation, inferring functional dependencies from keys, equalities, and in views. We...
DBMS Functional Dependencies Aptitude Questions and Answers (Multi Choice Questions) – in this section functional dependencies aptitude questions and answers from freshers and experienced.
DBMS - Tuple Relational Calculus (TRC) DBMS - Row Oriented Vs. Column Oriented Data Stores DBMS - Join Operation Vs. Nested Query DBMS - Armstrong's Axioms DBMS - Dependency Preserving Decomposition DBMS - Thomas Write Rule DBMS - Equivalence of Functional Dependencies DBMS - Timestamp Ordering ...