【2020年8月】Oracle OCP 071考試新題(-12題)CUUG內部題庫
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我要咨詢【2020年8月】Oracle OCP 071考試新題(-12題)CUUG內部題庫
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考試新題-12題)CUUG內部題庫，釘釘群(35277291)Oracle金牌名師親自題庫解析
