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Some disadvantages of File Oriented System?
Objectives After reading this part, you should be able to: Modify, create, and delete database schema objects; Update database using SQL command; Retrieve data f
Oracle & Distributed Databases 1. Differentiate between PL/SQL functions and procedures. 2. Draw the diagram of logical structure of oracle database and explain it in brief.
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please give me introduction to full data in D B M S in a short assignment
If the deletion violates referential integrity constraint, then three alternatives are available: Default option: - refuse the deletion. It is the job of the DBMS to describ
Implementation of association as an object Implement as a separate association object, independent of either class, as in Figure. An association object is a group of pairs
Views in relational algebra: 1. Basic expression contains either a) A relation in the database. b) A constant relation. 2. General expressions are madde out of sma
Describe Database state in details? Database state: The actual data within the database at a particular moment in time is known as a database state.
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What is Primary key? Primary Key - Primary key is one of the candidate keys which uniquely identifies each row in the relation.
The typical file-oriented system is supported by a conformist operating system. Permanent records are stored in a variety of files and a number of different application programs are written to extract records from and add records to the appropriate files.
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