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[英]How can i make a query of two different objects in the same column of one table, relationed to different columns in another table?
[英]how can i join the two different query statement,which contain different table ,column name
SELECT
bookingReference,
SUM(amount)
FROM
rates_Booking
WHERE date BETWEEN '2016-09-01' AND '2016-09-30'
GROUP BY bookingReference;
SELECT booking_type.`name` as booking_type
FROM booking_type
LEFT JOIN booking ON booking_type.`name`=booking.booking_type;
我想加入兩個表。 我想要這樣的結果:
column1 column2 column3
----------
bookingReference sum(amount) booking_type
----------
0993979-00 £500 booking
----------
我假設第一個和第二個數據集之間有一些連接列。 在這種情況下,我所做的只是在預訂參考列上加入兩者(假設該列在兩個數據集中)。 用所給的信息量真的很難確定。 但是如果有一個引用列,那么它將是一個簡單的內部連接
SELECT
A.bookingReference,SUM(A.amount), booking_type.`name` as booking_type
FROM
rates_Booking A
inner join booking_type B ON A.bookingReference = B.bookingReference
left join booking ON booking_type.`name`=booking.booking_type
WHERE date BETWEEN '2016-09-01' AND '2016-09-30'
GROUP BY A.bookingReference,booking_type.`name`;
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