Podcast
Questions and Answers
What is the primary purpose of Normalization in SQL?
What is the primary purpose of Normalization in SQL?
- Ensure data is stored logically (correct)
- Store data illogically
- Cause Insertion Anomalies
- Increase data redundancy
Which stage of relational databases design involves importing and converting data from the old system into the new database?
Which stage of relational databases design involves importing and converting data from the old system into the new database?
- Normalization
- ER Modeling
- Data conversion (correct)
- Testing
What is the purpose of ER Modeling in database design?
What is the purpose of ER Modeling in database design?
- Store data illogically
- Reduce data redundancy
- Define data elements and relationships (correct)
- Cause Deletion Anomalies
Which database element serves as the primary unit of organization and storage of data?
Which database element serves as the primary unit of organization and storage of data?
What is the objective of testing in the implementation stage of relational databases design?
What is the objective of testing in the implementation stage of relational databases design?
What does Normalization in SQL aim to eliminate?
What does Normalization in SQL aim to eliminate?
What is the recommended approach before sketching out tables and columns for a database project?
What is the recommended approach before sketching out tables and columns for a database project?
What is a database requirement?
What is a database requirement?
What is the purpose of work shadowing in the context of a database project?
What is the purpose of work shadowing in the context of a database project?
In a database, what are data requirements primarily focused on?
In a database, what are data requirements primarily focused on?
What is the primary purpose of initial interviews with chief stakeholders in a database project?
What is the primary purpose of initial interviews with chief stakeholders in a database project?
What do most databases need to generate, according to the text?
What do most databases need to generate, according to the text?
What is the purpose of the planning stage in the database development life cycle?
What is the purpose of the planning stage in the database development life cycle?
Which stage of the database design process involves implementing the logical model of a database?
Which stage of the database design process involves implementing the logical model of a database?
Why is it important for a database system to go through a development life cycle?
Why is it important for a database system to go through a development life cycle?
What distinguishes the logical model stage from the physical model stage in database design?
What distinguishes the logical model stage from the physical model stage in database design?
In the context of database design, what does the system definition stage primarily focus on?
In the context of database design, what does the system definition stage primarily focus on?
Why might the steps in the development life cycle not have to be followed religiously on small database systems?
Why might the steps in the development life cycle not have to be followed religiously on small database systems?
What is the primary function of a column in a database?
What is the primary function of a column in a database?
In a database schema, what does the conceptual model primarily focus on?
In a database schema, what does the conceptual model primarily focus on?
Which database model distinguishes between the hardware's specifications and the OS initiated by the database?
Which database model distinguishes between the hardware's specifications and the OS initiated by the database?
What is the purpose of an external model in a database schema?
What is the purpose of an external model in a database schema?
Which element in a database schema gives access to just a single owner who can modify objects within it?
Which element in a database schema gives access to just a single owner who can modify objects within it?
What does each column in a table have that determines the type of data it can store?
What does each column in a table have that determines the type of data it can store?
What is the purpose of a primary key in a database?
What is the purpose of a primary key in a database?
In a relational database, what kind of relationship is established between tables using primary and foreign keys?
In a relational database, what kind of relationship is established between tables using primary and foreign keys?
Which type of relationship in a database links one table record to more than one record from another table?
Which type of relationship in a database links one table record to more than one record from another table?
What role does a foreign key play in database design?
What role does a foreign key play in database design?
Which type of relationship involves many records from one table being linked to many records in another table?
Which type of relationship involves many records from one table being linked to many records in another table?
What is the primary purpose of using primary and foreign keys in a relational database?
What is the primary purpose of using primary and foreign keys in a relational database?
