Use the following data model for this question: Fish fish_id name DailyCatch catch_id date Fish_Catch fish_catch_id catch_id fish_id Which of the following is a situation where an OUTER JOIN could be useful?     When a fisherman wants to see only the fish that she has not caught When a fisherman wants to see all fish in the database including those that she has caught and those that she has not caught before When a fisherman wants to see only fish in the database that she has caught When a fisherman wants to see the fish that belong to a certain species

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Use the following data model for this question:

Fish

fish_id
name

DailyCatch

catch_id
date

Fish_Catch

fish_catch_id
catch_id
fish_id


Which of the following is a situation where an OUTER JOIN could be useful?

 
 
  • When a fisherman wants to see only the fish that she has not caught

  • When a fisherman wants to see all fish in the database including those that she has caught and those that she has not caught before

  • When a fisherman wants to see only fish in the database that she has caught

  • When a fisherman wants to see the fish that belong to a certain species

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