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Questions and Answers
Which of the following best describes a database management system (DBMS)?
Which of the following best describes a database management system (DBMS)?
- A system that extracts data from internal and external databases
- A system that ensures data uniformity and accuracy
- A system that gathers and integrates data across organizational systems
- A system that allows users to create, read, update, and delete data in a relational database (correct)
What is the purpose of master data management (MDM)?
What is the purpose of master data management (MDM)?
- To perform CRUD operations on data
- To provide a logical relationship among tables
- To extract data from internal and external databases
- To ensure data uniformity and accuracy (correct)
What is a primary key in a database table?
What is a primary key in a database table?
- A field that provides a logical relationship among tables
- A field that is used to perform CRUD operations on data
- A field that uniquely identifies a given entity in a table (correct)
- A field that appears as an attribute in another table
What is a foreign key in a database table?
What is a foreign key in a database table?
What is the purpose of extraction, transformation, and loading (ETL) in data management?
What is the purpose of extraction, transformation, and loading (ETL) in data management?
Which of the following entities are commonly integrated across organizational systems in master data management (MDM)?
Which of the following entities are commonly integrated across organizational systems in master data management (MDM)?
What is the purpose of a primary key in a database table?
What is the purpose of a primary key in a database table?
What does a foreign key in a database table represent?
What does a foreign key in a database table represent?
What does the acronym ETL stand for in data management?
What does the acronym ETL stand for in data management?
What are the main functionalities provided by a database management system (DBMS)?
What are the main functionalities provided by a database management system (DBMS)?
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Study Notes
Database Management System (DBMS)
- A database management system (DBMS) is a software system that allows you to define, create, maintain, and manipulate databases.
Master Data Management (MDM)
- The purpose of master data management (MDM) is to ensure that an organization's shared master data assets, such as customer, product, and supplier data, are accurate, complete, and consistent across all systems.
Primary Key in a Database Table
- A primary key in a database table is a unique identifier for each record, allowing for efficient and accurate data retrieval and manipulation.
- The primary key's purpose is to uniquely identify each record in a database table.
Foreign Key in a Database Table
- A foreign key in a database table represents a field that references the primary key in another table, establishing a relationship between the two tables.
- A foreign key is used to link data between tables, enabling data integrity and consistency.
Extraction, Transformation, and Loading (ETL)
- The purpose of extraction, transformation, and loading (ETL) in data management is to extract data from multiple sources, transform it into a standardized format, and load it into a target system, such as a data warehouse.
- ETL stands for extraction, transformation, and loading.
Master Data Management (MDM) Integration
- In master data management (MDM), customer, product, supplier, and other relevant entities are commonly integrated across organizational systems.
Database Management System (DBMS) Functionalities
- A database management system (DBMS) provides main functionalities, including data definition, data manipulation, data querying, and data security.
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