17 lines
282 B
MySQL
17 lines
282 B
MySQL
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SET TRANSACTION ISOLATION LEVEL REPEATABLE READ;
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BEGIN TRANSACTION T2
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SELECT
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SUM(Cena)
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FROM
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Bilety
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-- STEP 2 RUN ABOVE
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UPDATE Wycieczki
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SET cena = cena * 2
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WHERE
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kraj = 'Bangkok'
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-- STEP 4 RUN BETWEEN 2 AND 4
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COMMIT TRANSACTION T2
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