Schema Table: CREATE TABLE name_basics (nconst VARCHAR(45) NOT NULL, primaryName VARCHAR(45) NULL, birthYear YEAR(4) NULL, deathYear YEAR(4) NULL, age INT NULL, movieNum INT NULL, PRIMARY KEY (nconst)); CREATE TABLE title_episode (episodeID VARCHAR(45) NOT NULL, parentTconst VARCHAR(45) NULL, seasonNumber INT NULL, episodeNumber INT NULL, PRIMARY KEY (episodeID), CONSTRAINT parentTconst FOREIGN KEY (parentTconst) REFERENCES title_basics (tconst) ON DELETE NO ACTION ON UPDATE NO ACTION); CREATE TABLE title_principals (tconst VARCHAR(45) NOT NULL, ordering INT NULL, nconst VARCHAR(45) NULL, category VARCHAR(45) NULL, job VARCHAR(45) NULL, characters VARCHAR(45) NOT NULL, PRIMARY KEY (tconst, characters), CONSTRAINT nconst FOREIGN KEY (nconst) REFERENCES name_basics (nconst) ON DELETE NO ACTION ON UPDATE NO ACTION, CONSTRAINT tconst FOREIGN KEY (tconst) REFERENCES title_basics (tconst) ON DELETE NO ACTION ON UPDATE NO ACTION); CREATE TABLE title_ratings (tconst VARCHAR(45) NOT NULL, averageRating VARCHAR(45) NOT NULL, numVotes VARCHAR(45) NULL, PRIMARY KEY (tconst, averageRating), CONSTRAINT tconst FOREIGN KEY (tconst) REFERENCES title_basics (tconst) ON DELETE NO ACTION ON UPDATE NO ACTION); CREATE TABLE types (typeID INT NOT NULL, types VARCHAR(45) NULL, PRIMARY KEY (typeID)); CREATE TABLE types_collection (akasID INT NOT NULL, typeID INT NOT NULL, PRIMARY KEY (akasID, typeID), CONSTRAINT akasID FOREIGN KEY (akasID) REFERENCES title_akas (akasID) ON DELETE NO ACTION ON UPDATE NO ACTION, CONSTRAINT typeID FOREIGN KEY (typeID) REFERENCES type (typeID) ON DELETE NO ACTION ON UPDATE NO ACTION); Prompt: Add triggers to the above schema table that automatically updated when new data in inserted
Topic:
Software: SQLite
Schema Table:
CREATE TABLE name_basics (nconst VARCHAR(45) NOT NULL, primaryName VARCHAR(45) NULL, birthYear YEAR(4) NULL, deathYear YEAR(4) NULL, age INT NULL, movieNum INT NULL, PRIMARY KEY (nconst));
CREATE TABLE title_episode (episodeID VARCHAR(45) NOT NULL,
parentTconst VARCHAR(45) NULL, seasonNumber INT NULL,
episodeNumber INT NULL, PRIMARY KEY (episodeID), CONSTRAINT parentTconst FOREIGN KEY (parentTconst) REFERENCES title_basics (tconst) ON DELETE NO ACTION ON UPDATE NO ACTION);
CREATE TABLE title_principals (tconst VARCHAR(45) NOT NULL, ordering INT NULL, nconst VARCHAR(45) NULL, category VARCHAR(45) NULL,
job VARCHAR(45) NULL, characters VARCHAR(45) NOT NULL, PRIMARY KEY (tconst, characters), CONSTRAINT nconst FOREIGN KEY (nconst)
REFERENCES name_basics (nconst) ON DELETE NO ACTION ON UPDATE NO ACTION, CONSTRAINT tconst FOREIGN KEY (tconst) REFERENCES title_basics (tconst) ON DELETE NO ACTION ON UPDATE NO ACTION);
CREATE TABLE title_ratings (tconst VARCHAR(45) NOT NULL, averageRating VARCHAR(45) NOT NULL, numVotes VARCHAR(45) NULL,
PRIMARY KEY (tconst, averageRating), CONSTRAINT tconst FOREIGN KEY (tconst) REFERENCES title_basics (tconst) ON DELETE NO ACTION
ON UPDATE NO ACTION);
CREATE TABLE types (typeID INT NOT NULL, types VARCHAR(45) NULL, PRIMARY KEY (typeID));
CREATE TABLE types_collection (akasID INT NOT NULL, typeID INT NOT NULL, PRIMARY KEY (akasID, typeID), CONSTRAINT akasID FOREIGN KEY (akasID) REFERENCES title_akas (akasID) ON DELETE NO ACTION ON UPDATE NO ACTION, CONSTRAINT typeID FOREIGN KEY (typeID) REFERENCES type (typeID) ON DELETE NO ACTION ON UPDATE NO ACTION);
Prompt: Add triggers to the above schema table that automatically updated when new data in inserted.
Step by step
Solved in 2 steps