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CREATE TABLE state_lookup
(state      VARCHAR2(2),
  state_desc VARCHAR2(30)) TABLESPACE student_data;
ALTER TABLE state_lookup
  ADD CONSTRAINT pk_state_lookup PRIMARY KEY (state)
  USING INDEX TABLESPACE student_index;
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INSERT INTO state_lookup VALUES ('CA', 'California');
INSERT INTO state_lookup VALUES ('NY', 'New York');
INSERT INTO state_lookup VALUES ('NC', 'North Carolina');
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 ---------------   Íâ¼ü×ֶδæÔÚÓÚStudents±íÖÐ
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CREATE TABLE students
(student_id&n


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