video_category

5 rows where v_uid = "v_uejjk"

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Link v_uid c_uid
v_uejjk,c_2usm9 v_uejjk Threesome / Foursome c_2usm9
v_uejjk,c_98rqh v_uejjk Cowgirl c_98rqh
v_uejjk,c_g1r8g v_uejjk Beautiful Girl c_g1r8g
v_uejjk,c_gnmto v_uejjk Uniform c_gnmto
v_uejjk,c_s8q54 v_uejjk 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);