35 lines
1.1 KiB
Plaintext
35 lines
1.1 KiB
Plaintext
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-- Checks that each user has never twice either the same scene or the same recommendation style
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SELECT count(*) = 0
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FROM
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Experiment as E1,
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Experiment as E2,
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CoinCombination as C1,
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CoinCombination as C2
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WHERE
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E1.user_id = E2.user_id
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AND E1.id != E2.id
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AND E1.coin_combination_id = C1.id
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AND E2.coin_combination_id = C2.id
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AND (E1.recommendation_style = E2.recommendation_style OR C1.scene_id = C2.scene_id);
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-- Checks that a CoinCombination is never used more than 3 times (except for the tutorial)
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SELECT count(*) = 0
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FROM (
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SELECT count(CoinCombination.id)
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FROM Experiment, CoinCombination
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WHERE Experiment.coin_combination_id = CoinCombination.id AND scene_id != 1
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GROUP BY Experiment.coin_combination_id
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HAVING count(CoinCombination.id) > 3
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) AS T;
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-- Checks that the CoinCombination for a tutorial is only used once
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SELECT count(*) = 0
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FROM (
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SELECT count(CoinCombination.id)
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FROM Experiment, CoinCombination
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WHERE Experiment.coin_combination_id = CoinCombination.id AND scene_id = 1
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GROUP BY Experiment.coin_combination_id
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HAVING count(CoinCombination.id) != 1
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) AS T;
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