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What is Oracle databse structure?
Oracle database structure: The relational model has three main aspects:
Structures: Structures are well-defined objects which store the data of a database. Structures and the data contained inside them can be manipulated through operations.
Operations: Operations are clearly described actions which permit users to manipulate the data and structures of a database. The operations on a database must adhere to a pre- described set of integrity rules.
Integrity Rule: Integrity rules are the laws in which govern those operations is permitted on the data and structures of a database. Integrity rules protect the data and the structures of a database.
An ORACLE database has both a physical and a logical structure. Through separating physical and logical database structure, the physical storage of data could be managed without affecting the access to logical storage structures.
State the definition of association An association is a structural relationship which specifies that objects of one thing are connected with objects of another. In UML, asso
What are the factors to be taken into account when choosing a RAID level? A) Monetary cost of extra disk storage requirements. B) Performance requirements in terms of number
discuss the purpose of the concurrency control?
Law Associates is a large legal practice based in Sydney. You have been asked to design a data model for the practice based upon the following specification: The practice emplo
Example : Create a sequence named SEQSS that starts at 105, has a step of 1 and can take maximum value as 2000. CREATE SEQUENCE SEQSS START WITH 105 INCREMENT BY 1 MAX VA
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Describe the term- State Diagram State Diagram: An object could receive a sequence of the input instructions. The state of the object can differ depending upon sequence of in
List and explain the memory constructs of the Oracle 12c databases?
A field-groups statement or an insert statement reverses storage space and transfers values. False.
Explain the two types of participation constraint. 1. Total: The participation of an entity set E in a relationship set R is said to be total if each entity in E participates i
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