(a) What is a multivalued dependency in DBMS? (b) Give an example. What is data granularity? What does a big data architect do? What are the differences of storage architecture between DBMS and OODBMS? What is the difference between a database Field and a database Record?
What is strategic architecture? (a) What is a multivalued dependency in DBMS? (b) Give an example. What is interaction coupling? What is MVVM architecture? What are the components of event-based architecture? What is RSTP in networking?
Transitive Dependency.A functional dependency between three attributes where the second depends on the first and the third depends on the second. Due to transitivity, the third attribute is dependent on the first. Multivalued Dependency.A dependency where multiple values depend on one attribute. ...
The first goal during data normalization is to detect and remove all duplicate data by logically grouping data redundancies together. Whenever a piece of data is dependent on another, the two should be stored in proximity within that data set. By getting rid of all anomalies and organizing unstr...
In 4NFF, R should be (no multi-valued dependency exists). Unable to undergo lossless decomposition (join dependency) PJNF (Project-Join Normal Form) Example Consider the database tableRbelow having the schemaR (supplier, product, consumer). The primary key is a combination of all three attrib...
What is dependency injection in PHPn - Dependency injection is a procedure where one object supplies the dependencies of another object. Dependency Injection is a software design approach that allows avoiding hard-coding dependencies and makes it possibl
Often, databases that are being normalized with the target of 3NF end up in 4NF, because this multivalued dependency problem is inherently obvious when you properly identify primary keys. However, the 3NF version of these entities would have worked, although it isn't necessarily the most efficien...
This is an example of multivalued dependency: An item depends on more than one value. In this example, the course depends on both lecturer and book. Thus, 4NF states that a table should not have more than one of these dependencies. 4NF is rarely used outside of academic circles. ...
What is Data? Data is a collection of a distinct small unit of information. It can be used in a variety of forms like text, numbers, media, bytes, etc. it can be stored in pieces of paper or electronic memory, etc. Word 'Data' is originated from the word 'datum' that means 'sing...
Database management system is software that is used to manage the database. OurDBMSTutorial includes all topics of DBMS such as introduction, ER model, keys, relational model, join operation,SQL, functional dependency, transaction, concurrency control, etc. ...