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Hierarchical model is also known by? A hierarchical model is also known as a Tree structure.
In an E-R diagram an entity set is represent by? In an E-R digram entity set is represted by rectangle.
(1) Insert into PERSON Violated constraint: - Key constraint Reason: - Primary key 1 already exists in PERSON. Dealing: - DBMS could ask the user to provide valid PER
What are the categories of SQL command? SQL commands are separated in to the following categories: 1. Data - Definitition Language 2. Data Manipulation language 3. Dat
The Conceptual Level or Global level The conceptual level presents a logical view of the complete database as a unified whole. It permits the user to bring all the data in th
What are the features of embedded SQL? Explain. Embedded SQL - SQL could be implemented within two ways. It can be used interactively or embedded in a host language or throu
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
Describe the shadow paging technique.
Explain Transaction manager and their work? Transaction Manager: Ensure the database remains in a constant (correct) state despite system failure, and in which concurrent trans
Illustrate how you can use QBE to perform logical AND and OR operation
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