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Explain Network Model in DBMS?
Network Model - It was formalised within the late year of 1960s through the Database Task Group of the Conference on Data System Language (DBTG/CODASYL). It uses two various data structures to represent the database entities and relationships among the entities, namely record type and set type. In the network model, the relationships as well as the navigation by the database are predefined at database creation time.
In which format database schema is written ? Data base schema is written in the DDL format.
what is data link layer
Describe the candidate key functions ? Candidate Key and Alternate Key: In some instances, an entity will have more than one attribute which can serve as a primary key. Any key
What are the disadvantages of relational data ? Disadvantages • Performance - If the number of tables among that relationships to be established are large and the tables t
What is DBMS and what are functions of DBMS? DBMS consist of collection of integrated data and set of program to admission those data. The functions performed by a typical
Different stages of DDLC ?
Hi is anyone well versed in accounting information systems available now to help me work through an important assignment due tomorrow at noon?
ddlc
Problem 1 What is a Data Warehouse? Mention its advantages 2 Explain the Top-Down and Bottom-up Data Warehouse development Methodologies 3 What is Data Transformation? Ex
Define the step - Rearranging the Execution Order for Efficiency As we know that algorithm and data structure are closely related to one another, but data structure is conside
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