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)
- 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)
- Dynamic SQL (4)
- Pivots (2)
- Triggers (2)
- Archived (70)
SQL | Setting criteria using WHERE exercise | Find anomalies in the table of events by combining criteria
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The answer to the exercise will be included and explained 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.
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Write as many of the following queries as your mean trainer gives you time for:
|Query to show||Returns|
|Events which aren't in the Transport category (number 14), but which nevertheless include the word Train in the EventDetails column.||4 rows|
|Events which are in the Space country (number 13), but which don't mention Space in either the event name or the event details columns.||6 rows|
|Events which are in categories 5 or 6 (War/conflict and Death/disaster), but which don't mention either War or Death in the EventDetails column.||91 rows|
Save this query listing possible anomalies as Primeval, then close it down.
Where can i find the solutions of these exercises?
where exercise = 'sql'
1st query should not return 4 rows but 1
select * from tblEvent
where EventDetails like '% train %' and CategoryID != 14
i guess your query is:
EventDetails like '%train%'
which is incorrect as it will return words such as training...etc