Evaluate the set of SQL statements: CREATE TABLE dept (deptno NUMBER(2), dname VARCNAR2(14), 1oc VARCNAR2 (13)); ROLLBACK; DESCRIBE DEPT What is true about the set?()

A . The DESCRIBE DEPT statement displays the structure of the DEPT table. B . The ROLLBACK statement frees the storage space occupies by the DEPT table. C . The DESCRIBE DEPT statement returns an error ORA-04043: object DEPT does not exist. D . The DESCRIBE DEPT statement displays the structure of the DEPT table only if there is a COMMIT statement introduced before the ROLLBACK statement.

时间:2022-09-11 06:14:48 所属题库:1Z0-007题库

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