Computers and Technology, 07.06.2021 02:20, abdominguez8077
Database
1. Let A4, A5, and A6 be attributes in a relation R. If both of these functional dependencies hold: A4 β A5 and A5 β A6, then A4 β A6holds, because of the rule.
2. The fact that the value of a foreign key attribute must exist in another set of one or more key attributes in another table, is called a(n) .
3. Any set of attributes that allows us to identify unique rows (tuples) in a given relation are known as super keys. Out of these super keys we can always choose a proper subset among these which can be used as a key. Such keys are known as keys. If there is a combination of two or more attributes which is being used as the primary key then we call it as a key.
Answers: 3
Computers and Technology, 23.06.2019 09:00, jeremytheprimerapper
Which best compares appointments and events in outlook 2010appointments have a subject man, and events do notappointments have a specific date or range of dates, and events do notappointments have a start and end time of day, and events do notappointments have a location option, and events do not
Answers: 2
Computers and Technology, 24.06.2019 02:40, homework1911
Has anyone seen my grandma shes been gone for 4 years already
Answers: 1
Computers and Technology, 24.06.2019 13:00, juuuuuu42
George heard about the benefits of a data warehouse. he wants to try implementing one for his organization. however, he is afraid that transferring data to the data warehouse will affect transaction time. which element ensures that transactions are not affected when moving data to a warehouse? when data is transferred to a data warehouse, the a area frees the source system to continue transaction processing.
Answers: 2
Database
1. Let A4, A5, and A6 be attributes in a relation R. If both of these functional dependenc...
Mathematics, 10.12.2020 22:40
Mathematics, 10.12.2020 22:40
English, 10.12.2020 22:40
Mathematics, 10.12.2020 22:40
Mathematics, 10.12.2020 22:40
Arts, 10.12.2020 22:40
SAT, 10.12.2020 22:40
History, 10.12.2020 22:40