WISE OWL EXERCISES
- Simple Queries (4)
- Setting criteria using WHERE (5)
- Calculations (7)
- Calculations using dates (4)
- Basic joins (8)
- More exotic joins (2)
- Aggregation and grouping (8)
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- Subqueries (5)
- Stored procedures (5)
- Variables (8)
- Parameters and return values (11)
- Testing conditions (1)
- Looping (3)
- Scalar functions (6)
- Transactions (5)
- Creating tables (5)
- Temporary tables and table variables (9)
- Table-valued functions (6)
- Derived tables and CTEs (13)
- Dynamic SQL (4)
- Pivots (2)
- Triggers (2)
- Archived (70)
SQL | Calculations using dates exercise | Use the DATENAME function and CASE to display full dates
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You can learn how to do this exercise if you attend the course listed below!
- Go into SQL Server Management Studio;
- Open the SQL file you've just unzipped (you can press CTRL + O to do this); then
- Execute this script.
This will generate the database that you'll need to use in order to do this exercise (note that the database and script 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).
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Create a query to show the full dates for any event:
The first few events, in chronological order.
To get the suffix, you'll need to use a CASE statement based on the day number for any date.
Save this query as Query suffices (marvelling at the wordplay involved in the title), then close it down.
Why do we need to use the CASE function?
What's wrong with this:
SELECT EventName, EventDate, ( (DATENAME(Weekday, EventDate)) + ' ' + (DATENAME(day, EventDate)) + 'th ' + (DATENAME(month, EventDate)) + ' ' + (DATENAME(year, EventDate)) ) AS 'Full Date'
ORDER BY EventDate