Exercise: Using variables to filter a stored procedure

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Category ==> SQL  (192 exercises)
Topic ==> Variables  (8 exercises)
Level ==> Average difficulty
Course ==> Advanced SQL
Before you can do this exercise, you'll need to download and unzip this file (if you have any problems doing this, click here for help). Once you've done this:
  1. Go into SQL Server Management Studio;
  2. Open the SQL file you've just unzipped (you can press CTRL + O to do this); then
  3. Execute this script.

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The aim of this exercise is to generate a list of events that occurred in the year that you were born:

Searching by year

This shows the events for 1991, an especially good vintage.

To do this, first create two appropriately named variables to store the first date of your year of birth and the last,  then use these variables to filter your results to show only events occurring between these two dates.

Use the BETWEEN operator to show dates that occur on or after the first day and on or before the last.

Change the value of your variables to a different year's start/end, and rerun your query to check that it gives the correct events:

Events for 1964

The events occurring in 1964, for example (an even better vintage year, as it happens).

 

Thought: wouldn't it be nice if you could make a stored procedure pick up on different dates each time that you ran it?  If only we could pass these variable values in as, say, parameters ...

Optionally save this as It was a good year.sql, then close it down.

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