WISE OWL EXERCISES
SQL EXERCISES
SQL EXERCISES
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- Archived (70)
SQL | Archived exercise | Count how many people by status - vbls
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The answer to the exercise will be included and explained if you attend the relevant Wise Owl course (sadly, only in the UK for now).
Software ==> | SQL (198 exercises) |
Version ==> | Any version of SQL Server |
Topic ==> | Archived (70 exercises) |
Level ==> | Average difficulty |
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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.
The tblPersonStatus table contains two rows as follows:

A person is either current or obsolete!
By linking the tblPerson table to this tblPersonStatus table, create a simple query to show the number of people who still work at their companies:

A suggestion for what the query could look like
By declaring and using two variables (called @NumberCurrent and @NumberObsolete, perhaps?) create a query to show how many people there are in the database for each of the two statuses (stati?) Current and Obsolete:

What the result of running your query should look like
Optionally, save this query as Count persons by status.sql, then close it down.