Which statement is NOT CORRECT when mapping the above EER model to a relational model? AIRLINE CUSTOMER O.N FLIGHT ON COMMERCIAL FLIGHT flightNR PRIVATE FLIGHT A new relation should be created to model the EER relationship type between customer and commercial flight. A new relation should be created to model the EER relationship type between flight and airline.correct O The total EER specialization can be mapped to the relational model without loss of semantics. The Airline's primary key should be included as a NOT NULL foreign key in the relation 'Flight!
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
Please written by computer source
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
