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Question 1 Indexes are ocasionally defines on a single field of a file called an indexing field. List and describe the different types of indexes
Question 2 Consider a book is written by a particular author. And you have to explain to someone about the relationship that exists between the author and the book. Normally you can draw a diagram and show the relation. These diagrams are called entity-relationship diagram in which book is one entity, author is one entity, and the relationship that exists between the two entities is written. Likewise explain the various notations used to represent the ER diagram.
Question 3 Consider a banking database (select the tables and fields of your choice). Now apply all the operations of relational algebra and find the result.
An object-oriented design process 1. Define the context and modes 2. Designs the system architecture 3. Identifies the principal system objects 4. Identifies concurrency in
Prepare Heart Failure Registry database How are you today? Please I would like you to design a Heart Failure registry where doctors will log in to enter information about their
What is Thread splitting A thread of control is a path by which a set of state diagrams on that a single object is active at a time. Objects are shared between threads
Explain algorithm of ER To Relational Mapping ? ER-to-Relational Mapping Algorithm: 1) Step 1: Mapping of regular entity types: For each strong entity type E, form a relatio
Shared lock or Read Lock It is requested by a transaction that needs to just read the value of data item. A shared lock on a data item does not permit an exclusive lock
how oracle can be used
WHAT IS MEANT BY E-R MODEL
let us consider a table having 2200 records and the fixed size of the table to be considered as 25.then how many numbers of table is requredto perform horizontal fragmentation
Define the Two Phase Locking Protocol This is a protocol that is used to make sure serializability of transactions. This protocol needs that every transaction issue lock and u
various techniques of hashing?
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