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in same manner as he standard relational model ... poodle. 222-7777. 012. Spot. mutt. 333-9999. SELECT P.NAME. FROM PERSON AS P, DOG AS D ...
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Join on name, count flights per citizen. Na ve solution: cross product 2x1015 records ... cheap (large amounts required) A DBMS needs magnetic disk storage ...
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Specifies a new database schema. by giving it a name. MySQL uses CREATE ... VALUES ('Richard', 'Marini', '653298653') create table cust95204 ( name varchar(50) ...
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simple SELECT: one condition, no AND or OR. conjunctive select: multiple ... the same hashing function on the join attributes A of R and B of S as hash keys. ...
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Data should remain accessible to those. who have legitimate ... TO Tuna, Flounder; Tuna and Flounder now have all privileges. available to the BigFish role ...
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if it is equivalent to some serial schedule. all serializable schedules ... Lock downgrade: convert exclusive lock to shared lock. if T has an exclusive-lock(X) ...
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