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Why older data models are being replaced by new data modelling 100 words accepted#
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
Q. Describe how an ER schema can be represented by relation schemas and constraints arising from ER design can be mapped to constraints on a relation schema. The entity rela
limitations and benefits in database tecknowlagy
Explain the Role of a database administrator a. Defining the Schema The DBA describes the schema which consists of the structure of the data in the application. The DBA
Explain the Query Processing Data Query Processing permits a user to report or analyze structured and unstructured data pulled from multiple data sources.
The State of NewYork certifies firefighters throughout state and keep track all of them, as well as of the state’s fire departments. Each fire department has unique department numb
What are the DBMS languages? Briefly explain? Data Definition language (DDL):A database schema is specified through a set of definitions expressed through a special language
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
explain the level architectures of the database management system
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