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CREATE CLUSTER personnel
( department_number NUMBER(2) )
SIZE 512
STORAGE (INITIAL 100K NEXT 50K);
--½¨Á¢¾Û¼¯±íemp:
CREATE TABLE emp
(empno NUMBER PRIMARY KEY,
ename VARCHAR2(10) NOT NULL
CHECK (ename = UPPER(ename)),
job VARCHAR2(9),
mgr NUMBER REFERENCES scott.emp(empno),
hiredate DATE
CHECK (hiredate < TO_DATE ('08-14-1998', 'MM-DD-YYYY')),
sal NUMBER(10,2) CHECK&nb
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