7 lines
325 B
MySQL
7 lines
325 B
MySQL
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-- recording -> genre mapping
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CREATE TABLE recordings_genres (
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recording_id VARCHAR(64) NOT NULL REFERENCES recordings(id) ON DELETE CASCADE,
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genre_id VARCHAR(64) NOT NULL REFERENCES genres(id) ON DELETE CASCADE
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);
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ALTER TABLE recordings_genres ADD CONSTRAINT recording_genre_uniqkey UNIQUE (recording_id, genre_id);
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