WISE OWL EXERCISES
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)
- 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)
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- Archived (70)
SQL exercises on SUBQUERIES
This page lists the 5 exercises about Subqueries in SQL on our website:
| Software: | SQL |
| Version: | Any version of SQL Server |
| Topic: | Subqueries |
| Level: | Relatively easy |
| Course: | Introduction to SQL |
| Exercise: | Use a subquery to show events which happened since the last one for a particular country occurred. |
| Software: | SQL |
| Version: | Any version of SQL Server |
| Topic: | Subqueries |
| Level: | Relatively easy |
| Course: | Introduction to SQL |
| Exercise: | Use subqueries to filter with aggregates. |
| Software: | SQL |
| Version: | Any version of SQL Server |
| Topic: | Subqueries |
| Level: | Average difficulty |
| Course: | Introduction to SQL |
| Exercise: | Using sub queries filter the select statement. |
| Software: | SQL |
| Version: | Any version of SQL Server |
| Topic: | Subqueries |
| Level: | Average difficulty |
| Course: | Introduction to SQL |
| Exercise: | Create a correlated subquery to list out all countries having more than 8 events. |
| Software: | SQL |
| Version: | Any version of SQL Server |
| Topic: | Subqueries |
| Level: | Harder than average |
| Course: | Introduction to SQL |
| Exercise: | Use two subqueries to list all events in neither the last 30 countries or the last 15 categories. |
You can search our full list of SQL exercises here, or why not have a look at our other SQL training resources?
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