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select * from warehouses;
select * from boxes where Value>150;
select distinct contents from boxes;
select avg(value) from boxes;
select warehouse, avg(value) from boxes group by warehouse;
select warehouse, avg(value)
from boxes
group by warehouse
having avg(value)> 150;
select boxes.code, warehouses.location
from boxes join warehouses
on boxes.Warehouse = Warehouses.Code;
SELECT Boxes.Code, Location
FROM Warehouses
INNER JOIN Boxes ON Warehouses.Code = Boxes.Warehouse;
select Warehouse, count(*)
from boxes
group by warehouse;
SELECT Code
FROM Warehouses
WHERE Capacity <
(
SELECT COUNT(*)
FROM Boxes
WHERE Warehouse = Warehouses.Code
);
select Boxes.code
from boxes join Warehouses
on boxes.warehouse = warehouses.code
where warehouses.location = 'Chicago';
SELECT Code
FROM Boxes
WHERE Warehouse IN
(
SELECT Code
FROM Warehouses
WHERE Location = 'Chicago'
); |