init

Author: jamesquinlan

sql/joins1.sql

@@ -0,0 +1,43 @@
+-- +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+-- Description:	How many flights on Christmas to Chicago 
+--  			(ORD) from LGA?
+-- 
+-- Course: 		Intro. to Database
+-- Author: 		Quinlan, J.
+-- Date:		2023-04-13
+-- +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+use nycFlights;
+
+SELECT 
+    distinct P.tailnum, CONCAT(P.manufacturer, ' ', P.model) AS Plane, P.seats, F.dest
+FROM
+    Planes AS P
+        INNER JOIN
+    Flights AS F ON P.tailnum = F.tailnum where origin = 'JFK';
+    
+    
+    
+-- =================================    
+SELECT 
+    distinct P.tailnum, CONCAT(P.manufacturer, ' ', P.model) AS Plane,  P.seats
+FROM
+    Planes AS P
+        INNER JOIN
+    Flights AS F ON P.tailnum = F.tailnum where origin = 'JFK' and dest = 'ATL';
+    
+    
+-- ===================================
+
+SELECT 
+    COUNT(seats) AS Flights,
+    ROUND(AVG(seats), 0) AS Seats,
+    COUNT(seats) * ROUND(AVG(seats), 0) as Volume
+FROM
+    (SELECT DISTINCT
+        P.tailnum, P.seats
+    FROM
+        Planes AS P
+    INNER JOIN Flights AS F ON P.tailnum = F.tailnum
+    WHERE
+        origin = 'JFK' AND dest = 'ATL') AS X;

sql/joins2.sql

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+-- +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+-- Description:	How many flights on Christmas to Chicago 
+--  			(ORD) from LGA?
+-- 
+-- Course: 		Intro. to Database
+-- Author: 		Quinlan, J.
+-- Date:		2023-04-13
+-- +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+use nycFlights;
+SELECT 
+    visib, wind_speed, wind_gust
+FROM
+    Flights AS F
+        INNER JOIN
+    Weather AS W ON F.origin = W.origin
+WHERE
+    F.dep_delay > 60 AND F.origin = 'JFK';