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CREATE TABLE
CREATE TABLE
CREATE FUNCTION
CREATE TRIGGER
CREATE FUNCTION
CREATE TRIGGER
exchange_id buy_curr_code sell_curr_code rate inserted_at
1 11 22 1.2 2023-01-25 10:00:00+00
2 22 33 1.3 2023-01-25 11:00:00+00
3 11 33 1.6 2023-01-25 12:00:00+00
INSERT 0 3
UPDATE 1
UPDATE 1
exchange_id buy_curr_code sell_curr_code rate inserted_at
3 11 33 1.6 2023-01-25 12:00:00+00
1 11 22 0.66 2023-01-25 13:00:00+00
2 22 33 0.77 2023-01-25 14:00:00+00
SELECT 3
exchange_id rate inserted_at
1 1.2 2023-01-25 10:00:00+00
2 1.3 2023-01-25 11:00:00+00
3 1.6 2023-01-25 12:00:00+00
1 0.66 2023-01-25 13:00:00+00
2 0.77 2023-01-25 14:00:00+00
SELECT 5