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History of Science and Math

Q&A for people interested in the history and origins of science and mathematics

DECLARE @transactions TABLE(transaction_id INT, customer_id INT, wallet_id INT, 
                  money_in INT, money_out INT);

INSERT INTO @transactions VALUES
(1,  1, 1, 10, 0),
(2,  1, 1, 10, 0),
(3,  1, 1,  0, 3),
(4,  1, 2,  3, 0),
(5,  1, 2,  0, 1),
(6,  1, 2,  0, 3),
(7,  1, 2,  0, 1),
(8,  2, 3, 12, 0),
(9,  2, 3,  5, 0),
(10, 2, 3,  0, 9),
(11, 2, 3,  0, 6),
(12, 3, 4,100, 0),
(13, 3, 4,  0, 40),
(14, 3, 4,  0, 20),
(15, 3, 4,  0, 40);

--SELECT * from transactions;

Select *, sum(money_in) over(partition by wallet_id) as tot_in from @transactions

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