17 lines
280 B
SQL
17 lines
280 B
SQL
SET TRANSACTION ISOLATION LEVEL REPEATABLE READ;
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BEGIN TRANSACTION T1
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SELECT
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SUM(Cena)
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FROM
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Wycieczki
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-- STEP 1 RUN ABOVE
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UPDATE Bilety
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SET cena = cena * 2
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WHERE
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kraj = 'Ateny'
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-- STEP 3 RUN BETWEEN 1 AND 3
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COMMIT TRANSACTION T1
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