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Examine the command that is used to create a table: SQL> CREATE TABLE orders(oid NUMBER(6) PRIMARY KEY, odate DATE, ccode NUMBER (6), oamtNUMBER(10,2)) TABLESPACE users; Which two statements are true about the effect of the above command()

发布日期:2020-04-10

Examine the command that is used to create a table...
A

A CHECK constraint is created on the OID column.

B

A NOT NULL constraint is created on the OID column.

C

The ORDERS table is the only object created in the USERS tablespace.

D

The ORDERS table and a unique index are created in the USERS tablespace.

E

The ORDERS table is created in the USERS tablespace and a unique index is created on the OID columnin the SYSTEM tablespace.

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