ALL SOFTWARE EXERCISES
- EXERCISES HOME PAGE (813)
- Access 2010 (66)
- Access VBA Macros (17)
- Advanced VBA (29)
- Excel 2010 (83)
- Excel 2013 (10)
- Excel 2016 (0)
- Excel VBA Macros (37)
- Power BI - Excel 2013 (25)
- Power BI - Excel 2016 (23)
- Power BI Desktop (26)
- PowerPivot 2010 (26)
- Report Builder 3.0 (42)
- SQL (156)
- SSAS - multidimensional (21)
- SSAS - tabular (29)
- SSIS Integration Services (40)
- SSRS Reporting Services (53)
- Visual Basic (45)
- Visual C Sharp (65)
- WPF - Visual C# (20)
ACCESS 2010 EXERCISES
Exercise: Expressions - error in population density
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.
The answer to the exercise will be included and explained if you attend one of more of the courses listed below!
You need a minimum screen resolution of about 700 pixels width to see our exercises. This is because they contain diagrams and tables which would not be viewable easily on a mobile phone or small laptop. Please use a larger tablet, notebook or desktop computer, or change your screen resolution settings.
Open the database in the above folder.
Create a new field called Density which calculates the population density of each country (in a moment we will compare this with the one which is already in the table):
Density is equal to Population/SquareMiles
Save this query as PopulationDensity, then close it down.
Create another query based on the first one which includes a new field showing the error between the PeoplePerSquareMile field report and the Density field that you have calculated:
Use the ABS function to return the absolute value of the error
Sorting as above should revealt that the biggest error reported is for Libya, but that most countries' population densities are correctly calculated.
Save your query as PopulationDensityErrors, then close it and the database down.