WISE OWL EXERCISES
- Simple Queries (4)
- Setting criteria using WHERE (5)
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- 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 | Archived exercise | Convert trainer id list into trainer name list
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.
You can learn how to do this exercise on the relevant Wise Owl classroom training course (sadly for the moment only in the UK).
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If you haven't already done so, run the stored procedure in the above folder to generate a database of training courses and delegates.
Write some sort of query, somehow, which takes in any comma-delimited id string of trainer ids as input:
An example of a typical input
Your query should, somehow, turn this into a comma-delimited string of trainer names:
What this input would produce
You can use any method you like - the model answer combines a multi-statement table-valued function and a stored procedure, but as with all things SQL there are probably lots of other, better approaches!
Optionally, save your query as Trainer names.sql, then close it down.