📄 chapter8_databasechanges.txt
字号:
ALTER TABLE Films
ADD DVDPrice DECIMAL(12,1);
UPDATE Films
SET DVDPrice = 12.99
WHERE FilmId = 2;
UPDATE Films
SET DVDPrice = 9.99
WHERE FilmId = 4;
UPDATE Films
SET DVDPrice = 15.99
WHERE FilmId = 6;
UPDATE Films
SET DVDPrice = 12.99
WHERE FilmId = 7;
UPDATE Films
SET DVDPrice = 2.99
WHERE FilmId = 8;
UPDATE Films
SET DVDPrice = 8.95
WHERE FilmId = 9;
UPDATE Films
SET DVDPrice = 12.99
WHERE FilmId = 11;
UPDATE Films
SET DVDPrice = 9.99
WHERE FilmId = 12;
UPDATE Films
SET DVDPrice = 12.99
WHERE FilmId = 15;
UPDATE Films
SET DVDPrice = 8.95
WHERE FilmId = 13;
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