video_category

4 rows where v_uid = "v_g2jyv"

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Link v_uid c_uid
v_g2jyv,c_0951h v_g2jyv Hi-Def c_0951h
v_g2jyv,c_0tc2g v_g2jyv Variety c_0tc2g
v_g2jyv,c_s7xka v_g2jyv Sailor Uniform c_s7xka
v_g2jyv,c_s8q54 v_g2jyv Academy Uniform c_s8q54

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CREATE TABLE video_category (
  v_uid TEXT NOT NULL REFERENCES videos(uid)     ON DELETE CASCADE,
  c_uid TEXT NOT NULL REFERENCES categories(uid) ON DELETE CASCADE,
  PRIMARY KEY (v_uid, c_uid)
);
CREATE INDEX idx_video_category_c ON video_category(c_uid);