Oracle.1Z0-051.175q(14)

OCP 11g 051题库

NOCYCLE;

SQL>CREATE TABLE ord_items

(ord_no NUMBER(4)DEFAULT ord_seq.NEXTVAL NOT NULL,

item_no NUMBER(3),

qty NUMBER(3) CHECK (qty BETWEEN 100 AND 200),

expiry_date date CHECK (expiry_date > SYSDATE),

CONSTRAINT it_pk PRIMARY KEY (ord_no,item_no),

CONSTRAINT ord_fk FOREIGN KEY(ord_no) REFERENCES orders(ord_no));

The command to create a table fails. Identify the reason for the SQL statement failure? (Choose all that

apply.)

A. You cannot use SYSDATE in the condition of a CHECK constraint.

B. You cannot use the BETWEEN clause in the condition of a CHECK constraint.

C. You cannot use the NEXTVAL sequence value as a DEFAULT value for a column.

D. You cannot use ORD_NO and ITEM_NO columns as a composite primary key because ORD_NO is also the FOREIGN KEY.

Answer: AC

QUESTION 32

Which CREATE TABLE statement is valid?

A. CREATE TABLE ord_details

(ord_no NUMBER(2) PRIMARY KEY,

item_no NUMBER(3) PRIMARY KEY,

ord_date DATE NOT NULL);

B. CREATE TABLE ord_details

(ord_no NUMBER(2) UNIQUE, NOT NULL,

item_no NUMBER(3),

ord_date DATE DEFAULT SYSDATE NOT NULL);

C. CREATE TABLE ord_details

(ord_no NUMBER(2) ,

item_no NUMBER(3),

ord_date DATE DEFAULT NOT NULL,

CONSTRAINT ord_uq UNIQUE (ord_no),

CONSTRAINT ord_pk PRIMARY KEY (ord_no));

D. CREATE TABLE ord_details

(ord_no NUMBER(2),

item_no NUMBER(3),

ord_date DATE DEFAULT SYSDATE NOT NULL,

CONSTRAINT ord_pk PRIMARY KEY (ord_no, item_no));

Answer: D

QUESTION 33

You want to create an ORD_DETAIL table to store details for an order placed having the following

business requirement:

1) The order ID will be unique and cannot have null values.

2) The order date cannot have null values and the default should be the current date.

3) The order amount should not be less than 50.