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lab.md

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+#Lab - MySQL
+
+## Goal
+
+Find out how many flights go from NYC to Paris
+
+## Stretch Goals
+
+- Do this so that just the number appears as the result of only one SQL statement
+- Which airlines travel from NYC to Paris?
+- Find all the flights that leave NYC.  Give me a list of how many go to each destination city.
+
+## Hints
+
+- The routes table has a column called `origin_id` and another called `destination_id`.  These map to the `id` column in the airport table.
+- You're going to have to use the airports table twice in the same SQL statement.  In order to tell which airport is the `destination` and which is the `origin`, you're going to have to temporarily rename the airports table like so:
+
+	```sql
+		/* note that once you rename a table, you MUST refer to it by its new name */
+		SELECT * FROM airports AS origin WHERE origin.city = 'New York';
+		/* later on in the SQL statement, when dealing with the destination, you should do the same for airports AS destination */
+	```