CPSC-608 Database Systems Fall 2010 Instructor: Jianer Chen Office: HRBB 315C Phone: Notes #6

secondary storage (disks) in tables (relations) database administrator DDL language database programmer DML (query) language DBMS file manager buffer manager main memory buffers index/file manager DML complier DDL complier query execution engine transaction manager concurrency control lock table logging & recovery Database Compiler

CREATE TABLE ( ); CREATE VIEW AS ; CREATE ASSERTION CHECK ( ); CREATE TRIGGER CREATE INDEX ON ( ); DROP TABLE ; ALTER TABLE ADD ; ALTER TABLE DROP ; SELECT select-list FROM from-list WHERE conditions GROUP BY group-list HAVING conditions; (subquery) UNION (subquery); (subquery) INTERSECT (subquery); (subquery) EXCEPT (subquery); R CROSS JOIN S; R NATURAL JOIN S; R JOIN S ON ; INSERT INTO VALUES ( ); DELETE FROM WHERE ; UPDATE SET WHERE ;