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Software ==> | SQL (203 exercises) |
Topic ==> | Calculations (18 exercises) |
Level ==> | Average difficulty |
Subject ==> | SQL training |
This exercise is provided to allow potential course delegates to choose the correct Wise Owl Microsoft training course, and may not be reproduced in whole or in part in any format without the prior written consent of Wise Owl.
This will generate the database that you'll need to use in order to do this exercise (remember to refresh your list of databases to see it!). Note that any files provided are only to be used for exercises published on this website, and may not be reused or distributed in any form without the prior written permission of Wise Owl.
If you don't have a copy of the Music_01 database, follow the instructions at the following link to create it: www.wiseowl.co.uk/sql/exercises/standard/using-sql-server/5257/
Write a query to select the following fields from the Album table:
We don't have sales information for every album.
Use the ISNULL function to show the message No sales figures provided for albums which don't have any sales information. You'll need to control the data type of the US_sales_(m) column to make this work.
Some of the results you should see.
Write another query to show the following fields from the Tour table:
You can divide Attendance by Shows to calculate the answer in the fourth column.
Use the ISNULL function to replace any nulls in the Avg_show_attendance column with the phrase Not enough data.
The fourth column shouldn't contain any more nulls.
Write another query to show the following columns from the Venue table:
Some of the venues you should see.
Add a calculated column to work out the construction cost in pounds sterling. At the time of writing, 1 US dollar is worth 0.8 British pounds. Replace any nulls with the phrase No cost data.
Some of the results you should see.
Save the script as It's Never Null in Hull.sql and then close it.
You can find other training resources for the subject of this exercise here:
Kingsmoor House
Railway Street
GLOSSOP
SK13 2AA
Landmark Offices
99 Bishopsgate
LONDON
EC2M 3XD
Holiday Inn
25 Aytoun Street
MANCHESTER
M1 3AE
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