video_category

4 rows where v_uid = "v_q5v9q"

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Link v_uid c_uid
v_q5v9q,c_33yzf v_q5v9q ハイビジョン c_33yzf
v_q5v9q,c_392vm v_q5v9q 4K c_392vm
v_q5v9q,c_3d92o v_q5v9q ギャル c_3d92o
v_q5v9q,c_4lfg6 v_q5v9q アナル c_4lfg6

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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);