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Week7 -SQL

  • Blog
  • Integer
    • smallint (2 byte)
    • integer (4 byte around 4 billion all positive)
    • bigint (8 byte)
  • Numeric
    • boolean
    • date
    • datetime
    • numeric(scale, precision)
    • time
    • timestamp
  • Real
    • real (4 byte)
    • double precision (8 byte)
  • Text
    • char(n)
    • varchar(n)
    • text

sqlite3 fromshi.db
CREATE TABLE 'registrants' ('id' integer, 'name' varchar(255), 'dorm' varchar(255));
INSERT INTO registrants (id, name, dorm) VALUES (1, 'Brian', 'A');
SELECT * FROM registrants WHERE dorm = 'A';
UPDATE registrants SET dorm = 'B' WHERE id = 1;
DELETE * FROM registrants WHERE id = 1;
SELECT * FROM Artist, Album WHERE Album.ArtistId = Artist.ArtistId;
SELECT * FROM Album where Title like '%Rock%';