17 lines
261 B
SQL
17 lines
261 B
SQL
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE;
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BEGIN TRANSACTION
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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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INSERT INTO
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Wycieczki
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VALUES
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('Honolulu', 2000)
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-- STEP 4 RUN BETWEEN 2 AND 4
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COMMIT TRANSACTION
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