【2020年8月】Oracle OCP 071考试新题(-12题)CUUG内部题库
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我要咨询【2020年8月】Oracle OCP 071考试新题(-12题)CUUG内部题库
Choose the best answer.
Examine these statements:
CREATE TABLE alter_test (c1 VARCHAR2 (10),c2 NUMBER(10)) ;
INSERT INTO alter_test VALUES ('123', 123) ;
COMMIT ;
Which is true about modifying the columns in ALTER_TEST?
A) C1 can be changed to NUMBER (10) but c2 cannot be changed to VARCHAR2 (10).
B) C1 can be changed to VARCHAR2 (5) and C2 can be changed to NUMBER(12,2).
C) C1 can be changed to NUMBER (10) and C2 can be changed to VARCHAR2 (10).
D) C2 can be changed to VARCHAR2 (10) but C1 cannot be changed to NUMBER (10).
E) C2 can be changed to NUMBER(5) but C1 cannot be changed to VARCHAR2 (5).
2020年8月份Oracle OCP 071考试新题-12题)CUUG内部题库，钉钉群(35277291)Oracle金牌名师亲自题库解析
