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POQuery in Access (adding missing values)
 

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    <p>I've got two tables, <strong>Guides</strong> and <strong>Availability</strong>. <strong>Guides</strong> is a list of guides, and <strong>Availability</strong> is a list of dates for which information is known about a particular guide. For instance <em>03/03/14 - Guide 3 - Available</em> or <em>05/03/14 - Guide 1 - Busy</em>. If a guide's availability on a particular day isn't know yet, there isn't an entry in <strong>Availability</strong> at all for that day.</p> <p>I want to write a query that will return a list of the statuses of all the guides during the next three days. If the status isn't known it will say <em>Unknown</em>.</p> <p>I'm sure in SQL this task is definitely doable, but I am constrained by having to write a Web App in Access 2013. This means I must use the query editor in Access. Can anyone with expertise offer some guidance? If anything is unclear in the question, do say so.</p> <pre><code>Example query output: 03/03/2013 - Guide 1 - Busy 03/03/2013 - Guide 2 - Unknown 03/03/2013 - Guide 3 - Unknown 04/03/2013 - Guide 1 - Available 04/03/2013 - Guide 2 - Available 04/03/2013 - Guide 3 - Unknown 05/03/2013 - Guide 1 - Unknown 05/03/2013 - Guide 2 - Unknown 05/03/2013 - Guide 3 - Unknown Table: Guides Guide 1 Guide 2 Guide 3 Table: Availability 03/03/2013 - Guide 1 - Busy 04/03/2013 - Guide 1 - Available 04/03/2013 - Guide 2 - Available </code></pre> <p><em>P.S.: Someone has suggested I might need to make a third table listing all the dates for the next 10 years. This wouldn't be a problem if it helps with a solution</em></p>
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    1. COWhat data source shall the db engine use to give you rows with Mar 5 2013 dates? That date is not present in either of your tables, but it must come from somewhere. Do you have a separate calendar table with one row per date? If not, would you be willing to create one?
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    2. COIs there relation between guide and availability table?
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    3. CO@HansUp I don't mind creating a table with a long list of dates if that is necessary. However I would prefer to do it with a second query if that is also possible.
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