Which types of joins is used to produce the query?A)Right JoinB)Left JoinC)Inner JoinD)Natural Join RoomRoom_BookingRoomNo Room_Status101 Ready102 Ready103 Ready104 Ready105 MaintenanceCustomerIDRoomNo Checkin Checkout231101 4/6/2021 5/6/2021122102 12/8/2021 14/8/2021|44104 15/8/2021 16/8/202112101 10/6/2021 11/6/202155102 13/9/2021 14/9/2021QueryRoomNo Room_Status CustomerID Checkin Checkout101 Ready101 Ready102 Ready102 Ready103 Ready104 Ready105 Maintenance231 4/6/202112 10/6/2021122 12/8/202155 13/9/20215/6/202111/6/202114/8/202114/9/202144 15/8/202116/8/2021

Incorrect options A. Right join is a join that lists each row of a table available on the right side…

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Which types of joins is used to produce the query? A)Right Join B)Left Join C)Inner Join D)Natural Join

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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Concept explainers

Multiple Table

In a database, a table is used to store data in the form of rows and columns. Rows are aligned horizontally and identified by one or more values in a specific column. Columns are vertically aligned and identified by a unique column name.

Question

Which types of joins is used to produce the query?

A)Right Join

B)Left Join

C)Inner Join

D)Natural Join

Room
Room_Booking
RoomNo Room_Status
101 Ready
102 Ready
103 Ready
104 Ready
105 Maintenance
CustomerID
RoomNo Checkin Checkout
231
101 4/6/2021 5/6/2021
122
102 12/8/2021 14/8/2021|
44
104 15/8/2021 16/8/2021
12
101 10/6/2021 11/6/2021
55
102 13/9/2021 14/9/2021
Query
RoomNo Room_Status CustomerID Checkin Checkout
101 Ready
101 Ready
102 Ready
102 Ready
103 Ready
104 Ready
105 Maintenance
231 4/6/2021
12 10/6/2021
122 12/8/2021
55 13/9/2021
5/6/2021
11/6/2021
14/8/2021
14/9/2021
44 15/8/2021
16/8/2021

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