EXERCISE TOPIC▼
SQL EXERCISES▼
SQL 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)
- Views (5)
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- Variables (8)
- Parameters and return values (11)
- Testing conditions (1)
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- Scalar functions (6)
- Transactions (5)
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- Table-valued functions (6)
- Derived tables and CTEs (13)
- Dynamic SQL (4)
- Pivots (2)
- Triggers (2)
- Archived (70)
SQL | Archived exercise | Showing eg FRANCE HAS 6 LETTERS
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You can learn how to do this exercise on the relevant Wise Owl classroom training course (sadly for the moment only in the UK).
Software ==> | SQL (198 exercises) |
Version ==> | Any version of SQL Server |
Topic ==> | Archived (70 exercises) |
Level ==> | Harder than average |
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If you haven't already got it set up in SQL server, restore the Historical Events database from the above folder.
Create a query to list out country names as follows:

This is harder than it looks!
Save this query as Length of country name, and close it down.