I’m having two classes Experience and ExperienceReservation : The experience containt a foreign key named HostId and the ExperienceReservation contains only the experienceId ! i’m trying to return the list of each Reservation for only hosts so i want to ...
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I want to join two tables, with a regex match. This is what I want to do: SELECT elem, purl FROM my_table RIGHT JOIN other_table ON ( ...
I have two tables: product_trades with columns timestamp, product_id, price product_state with columns timestamp, symbol, fair_value What I want to do: for each product_trades, I want to get the last know fair_value. So I think the right way to do is a asof ...
I have access to my corporate Oracle database, I am granted SELECT TABLE right only. I have 2 tables containing the following data. The only fields that link the 2 tables are DEPT_ID AND SECTOR_ID. as you can see below ...
I read that MySQL does not support EXCEPT, and the workaround is to use LEFT JOIN. THIS IS MY QUERY: (SELECT ManufacturerID FROM ComputerManufacturers INNER JOIN Computers ON (Computers.ID = ComputerManufacturers.ComputerID AND Computers.IsLaptop = 1)) EXCEPT (SELECT ManufacturerID FROM ComputerManufacturers INNER JOIN Computers ON ...
Consider the following dataset Ranges id first last type 1 A C T 2 A C X 3 B E T 4 A B Y Letters Letter Type A T A X B T C Ts F Ts D T E T B X A Z B Z C W Where the caveat is that over time some types have changed, but are "equivalent" so to speak. Specifically in this case, type Y is also Z and type X is also W. Also, ...
I’m trying to use a query for updating rows in my table with key-value pairs. So the row where column-value is key updates with value. For this I tried to use: UPDATE access_keys SET global_id=a.global_id FROM access_keys INNER JOIN (VALUES (1,123),(2,321)) ...
I have 2 tables: Person and House with 1-n relation. I want to the result return as picture below: Row always have a Person column with a null House ...
I want to join two tables but only want to get one row from the right table for every row of the left column. and the left table column should be the latest rows by DateTime. example if two entries ...
To better illustrate my problem picture the following data set that has Rooms that contain a "range" of animals. To represent the range, each animal is assigned a sequence number in a separate table. There are different animal types and ...