Is this statement true or false:

A database schema can have a many-to-many relationship directly between 2 tables.

Question

Is this statement true or false:

A database schema can have a many-to-many relationship directly between 2 tables.

BlackTom AI · Accepted Answer

When evaluating whether a database schema can have a direct many-to-many relationship between two tables, we need to consider how relational databases model such associations.
Option 1: True. This statement would imply that two tables can reference each other in a many-to-many fashion without an intermediate structure. In practice, most relational databases require an intermediate table (a junction or associative table) to implement a many-to-many relationship, because a direct foreign key in each table cannot capture multiple associations between the same two entities. 
Option 2: False. This reflects the standard modeling approach: a direct many-to-many link between two tables is not supported by a simple pair of foreign keys; instead, you introduce a third table that holds foreign keys to both tables, with one row representing a single association between a row in the first table and a row in the second. This junction table can also carry additional attributes about the relationship itself if needed. 
Additional detail: Without a junction table, you could attempt to encode many-to-many links in one table using arrays or repeated fields, but that breaks normalization principles and queryability. Proper normalization for relational databases typically mandates a separate linking table to express the many-to-many relationship cleanly. 
Therefore, the statement described in Option 1 contradicts the conventional relational design, supporting the view captured in Option 2 as the accurate representation of how to model such relationships.

4510_COMP_SCI_X_0019 Quiz 9

Is this statement true or false: A database schema can have a many-to-many relationship directly between 2 tables.

View Explanation

Log in for full answers

Similar Questions

In the figure shown below, which attribute is a composite attribute in the Member table?

For the relationship represented in the figure, which of the following is true?

Which criteria is useful in selecting a primary key from among several candidate keys?

In the figure shown below, which attribute is a derived attribute in the Member table?

Using the Entity Relationship Diagram you have drawn on your piece of paper for the Hamilton Island 'BoatRaceResults' Table, answer the following question. Which is a Foreign Key of the BoatRaceResults table?

Using the Entity Relationship Diagram you have drawn on your piece of paper for the Hamilton Island 'BoatRaceResults' Table, answer the following question. Which would be the best choice for a primary key of the BoatRaceResults table?

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler