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Download Oracle Database SQL Exam Dumps
NEW QUESTION 36
View the exhibit and examine the structure of the SALES, CUSTOMERS, PRODUCTS and TIMES tables.
The PROD_ID column is the foreign key in the SALES tables, which references the PRODUCTS table.
Similarly, the CUST_ID and TIME_ID columns are also foreign keys in the SALES table referencing the CUSTOMERS and TIMES tables, respectively.
Evaluate the following CREATE TABLE command:
CREATE TABLE new_sales (prod_id, cust_id, order_date DEFAULT SYSDATE)
AS
SELECT prod_id, cust_id, time_id
FROM sales;
Which statement is true regarding the above command?
- A. The NEW_SALES table would not get created because the column names in the CREATE TABLE command and the SELECT clause do not match.
- B. The NEW_SALES table would get created and all the NOT NULL constraints defined on the specified columns would be passed to the new table.
- C. The NEW_SALES table would not get created because the DEFAULT value cannot be specified in the column definition.
- D. The NEW_SALES table would get created and all the FOREIGN KEY constraints defined on the specified columns would be passed to the new table.
Answer: B
NEW QUESTION 37
View the Exhibit and examine the structure of the CUSTOMERStable.
CUSTOMER_VUis a view based on CUSTOMERS_BR1 table which has the same structure as CUSTOMERStable.
CUSTOMERSneed to be updated to reflect the latest information about the customers.
What is the error in the following MERGEstatement?
- A. The CUSTOMER_IDcolumn cannot be updated.
- B. The INTOclause is misplaced in the command.
- C. The WHEREclause cannot be used with INSERT.
- D. CUSTOMER_VUcannot be used as a data source.
Answer: A
NEW QUESTION 38
Examine the description of the CUSTOMERStable:
You need to display last names and credit limits of all customers whose last name starts with A or B in lower or upper case, and whose credit limit is below 1000.
Examine this partial query:
Which two WHEREconditions give the required result? (Choose two.)
- A.
- B.
- C.
- D.
- E.
Answer: B,E
NEW QUESTION 39
In which three situations does a new transaction always start?
- A. When issuing a CREATE TABLE statement after a SELECT statement was issued in the same session
- B. When issuing a SELECT FOR UPDATE statement after a CREATE TABLE AS SELECT statement was issued in the same session
- C. When issuing a TRUNCATE statement after a SELECT statement was issued in the same session
- D. When issuing a CREATE INDEX statement after a CREATE TABLE statement completed unsuccessfully in the same session
- E. When issuing the first Data Manipulation Language (OML) statement after a COMMIT or ROLLBACK statement was issued in the same session
- F. When issuing a DML statement after a DML statement filed in the same session.
Answer: B,D,E
NEW QUESTION 40
Which three statements are true about the ALTER TABLE….DROP COLUMN….
command?
- A. A column can be dropped only if another column exists in the table.
- B. The column in a composite PRIMARY KEY with the CASCADE option can be dropped.
- C. A parent key column in the table cannot be dropped.
- D. A dropped column can be rolled back.
- E. A column can be dropped only if it does not contain any data.
Answer: A,B,C
NEW QUESTION 41
……
