video_category

5 rows where c_uid = "c_1a1dp"

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Link v_uid c_uid
v_14fpz,c_1a1dp v_14fpz Debut c_1a1dp
v_h743w,c_1a1dp v_h743w Debut c_1a1dp
v_kx95n,c_1a1dp v_kx95n Debut c_1a1dp
v_vupjh,c_1a1dp v_vupjh Debut c_1a1dp
v_zbykk,c_1a1dp v_zbykk Debut c_1a1dp

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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);