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What is Relational calculus?
Relational calculus is a Non- Procedural language.
Define the terms 1) physical schema 2) logical schema. Physical schema: The physical schema explains the database design at the physical level, which is the lowest level of abs
find the name of supplier who supply some red part
Support by Adding Indexes Multiple indexes can be used to access a data file by multiple access paths. In such a scheme only single copy of the data is consider, only the numbe
State as Location within a Program In this traditional approach, location of control inside a program totally defines the program state. Any finite state machine may be implem
CAR SALE (Car_id, Option_type, Option_listprice, Sale_date, Option_discountedprice) This relation refers to options installed in cars (e.g., cruise control) that were sold at a de
How can you connect to the MySQL Server? In order to connect to the MySQL server it is necessary to give the username and password so this be able to done with The following
Consider entity type Employee with attributes empNumber (this is unique), empName, and the year when he/she was hired. An employee can either be a technical employee, a marketing e
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
Give an example of multiple inheritance. One example of multiple inheritance is a committee for students affair which include faculty and administrative staff member.
Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
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