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Explain I command in QBE ?
I : It is the command in QBE that is used to insert tuple (s) into the database
find the name of supplier who supply some red part
What is meant by computing the closure of a set of functional dependency? The closure of F denoted by F + is the set of functional dependencies logically implied by F.
What are the typical phases of query processing
explain thee diffrent types of data models
Attributes attached to an entity can be of various types. Simple The attribute that cannot be further separated into smaller parts and shows the basic meaning is known as a
Define Network DBMS The NDBMS is built primarily on a one-to-many relationship, but where a parent-child representation between the data items cannot be ensured. This may occur
Consider the following database schema: STAFF(StaffNo, fName, lName, Position, sex, dob, branchNo) BRANCH(BranchNo, Street, City) Assume the following for the above database
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
Differentiate OO development from structured development. Structured approach of problem solving is based upon the idea of decomposition of system into subsystem. In this appro
HOW MANY TYPES OF VIEWS
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