Database Design Stages and Relationships

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No records in one table can relate to records in another table.
Each record in one table relates to multiple records in another table. (correct)
Each record in the second table relates to multiple records in the first table.
Each record in both tables must relate to one record only.

<p>It organizes data to minimize redundancy and improve integrity. (C)</p> Signup and view all the answers

<p>Establish a clear understanding of data requirements. (A)</p> Signup and view all the answers

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Identifying the information needed in the database.

Organizing the data into tables and columns.

Specifying details like data types and relationships.

Translating the logical design into a specific database management system.

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A one-to-one relationship occurs when each record in one table can only be related to a single record in another table.

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Requirement Analysis: Understanding user needs and database purpose.
Conceptual Design: Creating an abstract model, often using an Entity-Relationship (ER) diagram.
Logical Design: Converting the ER model into a structured format, typically a relational schema.
Physical Design: Defining data storage on hardware, including indexing and partitioning.

One-to-One: A single record in one table relates to a single record in another table.
One-to-Many: A single record in one table relates to multiple records in another table.
Many-to-Many: Multiple records in one table relate to multiple records in another table; often handled using a junction table.