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NEW QUESTION 30
Which two are true about the data dictionary?
- A. All users have permissions to access all information in the data dictionary by default
- B. The SYS user owns all base tables and user-accessible views in the data dictionary.
- C. Base tables in the data dictionary have the prefix DBA_.
- D. All user actions are recorded in the data dictionary.
- E. The data dictionary is constantly updated to reflect changes to database objects, permissions, and data.
Answer: B,E
NEW QUESTION 31
Which statement is true about transactions?
- A. A set of DDL statements executed in a sequence ending with a COMMITforms a single transaction.
- B. A combination of DDL and DML statements executed in a sequence ending with a COMMITforms a single transaction.
- C. Each Data Definition Language (DDL) statement executed forms a single transaction.
- D. A set of Data Manipulation Language (DML) statements executed in a sequence ending with a SAVEPOINTforms a single transaction.
Answer: C
Explanation:
Explanation/Reference:
References:
https://docs.oracle.com/database/121/CNCPT/transact.htm#CNCPT038
NEW QUESTION 32
You want to display the date for the first Monday of the next month and issue the following command:
What is the outcome?
- A. It executes successfully but does not return the correct result.
- B. In generates an error because TO_CHAR should be replaced with TO_DATE.
- C. In generates an error because rrrr should be replaced by rr in the format string.
- D. In generates an error because fm and double quotation marks should not be used in the format string.
- E. It executes successfully and returns the correct result.
Answer: E
NEW QUESTION 33
Examine the data in the ORDERS table:
Examine the data in the INVOICES table:
Examine this query:
SELECT order_ id, order_ date FROM orders
INTERSECT
SELECT order_ 1d, order_ date FROM invoices;
Which two rows will it return?
- A. 5 01-MAR-2019
- B. 4 01-FEB-2019
- C. 3 <null>
- D. 1 <null>
- E. 3 01-JAN-2019
- F. 2 <null>
Answer: B,D
NEW QUESTION 34
View the exhibit and examine the descriptions of the DEPTand LOCATIONStables.
You want to update the CITYcolumn of the DEPTtable for all the rows with the corresponding value in the CITYcolumn of the LOCATIONStable for each department.
Which SQL statement would you execute to accomplish the task?
UPDATE dept d
- A. SET city = (SELECT city
FROM locations l
WHERE d.location_id = l.location_id); - B. SET city = (SELECT city
FROM locations l)
WHERE d.location_id = l.location_id;
UPDATE dept d - C. SET city = ALL (SELECT city
FROM locations l
WHERE d.location_id = l.location_id);
UPDATE dept d - D. SET city = ANY (SELECT city
FROM locations l)
UPDATE dept d
Answer: A
NEW QUESTION 35
See the Exhibit and examine the structure of the PROMOTIONS table:
Using the PROMOTIONS table,
you need to find out the average cost for all promos in the range $0-2000 and $2000-5000 in category A.
You issue the following SQL statements:
What would be the outcome?
- A. It generates an error because multiple conditions cannot be specified for the WHEN clause.
- B. It generates an error because NULL cannot be specified as a return value.
- C. It generates an error because CASE cannot be used with group functions.
- D. It executes successfully and gives the required result.
Answer: D
Explanation:
CASE Expression
Facilitates conditional inquiries by doing the work of an IF-THEN-ELSE statement:
CASE expr WHEN comparison_expr1 THEN return_expr1
[WHEN comparison_expr2 THEN return_expr2
WHEN comparison_exprn THEN return_exprn
ELSE else_expr]
END
NEW QUESTION 36
Evaluate the following statement.
Which statement is true regarding the evaluation of rows returned by the subquery in the INSERT statement?
- A. Each row is evaluated by the first WHEN clause and if the condition is false then the row would be evaluated by the subsequent WHEN clauses.
- B. Each row is evaluated by the first WHEN clause and if the condition is true, then the row would be evaluated by the subsequent WHEN clauses.
- C. The INSERT statement will return an error because the ELSE clause is missing.
- D. All rows are evaluated by all the three WHEN clauses.
Answer: D
NEW QUESTION 37
View the Exhibits and examine the structure of the COSTS and PROMOTIONS tables.
You want to display PROD IDS whose promotion cost is less than the highest cost PROD ID in a pro
motion time interval.
Examine this SQL statement:
SELECT prod id
FROM costs
WHERE promo id IN
(SELECT promo id
FROM promotions
WHERE promo_cost < ALL
(SELECT MAX (promo cost)
FROM promotions
GROUP BY (promo_end date-promo_begin_date)) );
What will be the result?
- A. It executes successfully but does not give the required result.
- B. It executes successfully and gives the required result.
- C. It gives an error because the GROUP BY clause is not valid
- D. It gives an error because the ALL keyword is not valid.
Answer: A
NEW QUESTION 38
View the Exhibit and examine the data in the employees table.
You want to generate a report showing the total compensation paid to each employee to date.
You issue the following query:
What is the outcome?
- A. It executes successfully but does not give the correct output.
- B. It generates an error because the usage of the round function in the expression is not valid
- C. It generates an error because the alias is not valid.
- D. It generates an error because the concatenation operator can be used to combine only two items.
- E. It executes successfully and gives the correct output.
Answer: A
NEW QUESTION 39
Examine the structure of the PROGRAMS table:
Which two SQL statements would execute successfully? (Choose two.)
- A. SELECT NVL(TO_CHAR(MONTHS_BETWEEN(start-date,end_date)),'Ongoing')FROM programs;
- B. SELECT NVL(MONTHS_BETWEEN(start_date,end_date),'Ongoing')FROM programs;
- C. SELECT NVL(ADD_MONTHS(END_DATE,1)SYSDATE)FROM programs;
- D. SELECT TO_DATE(NVL(SYSDATE-END_DATE,SYSDATE))FROM programs;
Answer: A,D
NEW QUESTION 40
Which two tasks can be performed by using Oracle SQL statements?
- A. querying data from tables across databases
- B. starting up a database instance
- C. executing operating system (OS) commands in a session
- D. connecting to a database instance
- E. changing the password for an existing database user
Answer: A,E
Explanation:
Explanation/Reference:
References:
http://www.techonthenet.com/oracle/password.php
https://docs.oracle.com/cd/B28359_01/server.111/b28324/tdpii_distdbs.htm
NEW QUESTION 41
Examine these statements and the result:
CREATE SEQUENCE customer_seq CACHE 10;
SELECT customer_seq. NEXTVAL FROM DUAL; NEXTVAL
1
Now examine this command:
ALTER SEQUENCE customer_soq <MISaiNG CLAUSE>;
What must replace missing clause for customer_seq. nfxtvai. to return 11?
- A. cycle 11
- B. MINVALUE 11
- C. NOCACHE
- D. INCREMENT BY 10
- E. START WITH 11
Answer: B
NEW QUESTION 42
Examine the description of the transactions table:
Which two SQL statements execute successfully?
- A. SELECT customer_id CUSTID, transaction_date TRANS_DATE,amount+100 DUES FROM transactions;
- B. SELECT customer_id AS 'CUSTOMER-ID',transaction_date AS DATE, amount+100 'DUES' from transactions;
- C. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS DATE, amount+100 "DUES" from transactions;
- D. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS "DATE", amount+100 DUES FROM transactions;
- E. SELECT customer id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount+100 "DUES AMOUNT" FROM transactions;
Answer: A,D
NEW QUESTION 43
View the exhibit and examine the structure of the PROMOTIONS table.
You have to generate a report that displays the promo name and start date for all promos that started after the last promo in the 'INTERNET' category.
Which query would give you the required output?
- A. SELECT promo_name, promo_begin_date FROM promotionsWHERE promo_begin_date> ALL (SELECT MAX (promo_begin_date)FROM promotions) ANDpromo_category= 'INTERNET';
- B. SELECT promo_name, promo_begin_date FROM promotionsWHERE promo_begin_date IN (SELECT promo_begin_dateFROM promotionsWHERE promo_category= 'INTERNET');
- C. SELECT promo_name, promo_begin_date FROM promotionsWHERE promo_begin_date > ALL (SELECT promo_begin_dateFROM promotionsWHERE promo_category = 'INTERNET');
- D. SELECT promo_name, promo_begin_date FROM promotionsWHERE promo_begin_date> ANY (SELECT promo_begin_dateFROM promotionsWHERE promo_category= 'INTERNET');
Answer: C
NEW QUESTION 44
Examine the description of the TRANSACTIONStable:
Which two SQL statements execute successfully?
SELECT customer_id AS "CUSTOMER-ID", transaction_date AS DATE, amount + 100
- A. transactions;
SELECT customer_id AS "CUSTOMER-ID", transaction_date AS "DATE", amount + 100 - B. 'DUES' FROM transactions;
- C. DUES FROM transactions;
SELECT customer_id AS 'CUSTOMER-ID', transaction_date AS DATE, amount + 100 - D. 100 "DUES AMOUNT" FROM transactions;
SELECT customer_id CUSTID, transaction_date TRANS_DATE, amount +100 DUES FROM - E. "DUES" FROM transactions;
SELECT customer_id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount +
Answer: A,C
NEW QUESTION 45
You executed the following CREATE TABLE statement that resulted in an error:
SQL> CREATE TABLE employees(emp_id NUMBER(10) PRIMARY KEY, ename VARCHAR2(20), email NUMBER(3) UNIQUE, address VARCHAR2(500), phone VARCHAR2(20), resume LONG, hire_date DATE, remarks LONG, dept_id NUMBER(3) CONSTRAINT emp_dept_id_fk REFERENCES departments (dept_id), CONSTRAINT ename_nn NOY NULL(ename));
Identify two reasons for the error.
- A. FOREIGN KEY defined on the DEPT_ID column must be at the table level only
- B. Only one LONG column can be used per table
- C. The PRIMARY KEY constraint in the EMP_ID column must have a name and must be defined at the table level only
- D. The NOT NULL constraint on the ENAME column must be defined as the column level
- E. The FOREIGN KEY keyword is missing in the constraint definition
Answer: B,D
NEW QUESTION 46
View the exhibit and examine the structure of the PROMOTIONS table.
You have to generate a report that displays the promo name and start date for all promos that started after the last promo in the 'INTERNET' category.
Which query would give you the required output?
- A. SELECT promo_name, promo_begin_date FROM promotionsWHERE promo_begin_date> ALL (SELECT MAX (promo_begin_date)FROM promotions) ANDpromo_category= 'INTERNET';
- B. SELECT promo_name, promo_begin_date FROM promotionsWHERE promo_begin_date IN (SELECT promo_begin_dateFROM promotionsWHERE promo_category= 'INTERNET');
- C. SELECT promo_name, promo_begin_date FROM promotionsWHERE promo_begin_date > ALL (SELECT promo_begin_dateFROM promotionsWHERE promo_category = 'INTERNET');
- D. SELECT promo_name, promo_begin_date FROM promotionsWHERE promo_begin_date> ANY (SELECT promo_begin_dateFROM promotionsWHERE promo_category= 'INTERNET');
Answer: C
NEW QUESTION 47
Which three statements are true regarding the WHEREand HAVINGclauses in a SQL statement? (Choose three.)
- A. WHEREand HAVINGclauses cannot be used together in a SQL statement.
- B. The HAVINGclause is used to exclude one or more aggregated results after grouping data.
- C. The HAVINGclause conditions can use aliases for the columns.
- D. The WHEREclause is used to exclude rows before the grouping of data.
- E. The HAVINGclause conditions can have aggregate functions.
Answer: A,D,E
NEW QUESTION 48
Which three tasks can be performed by DDL statements? (Choose three.)
- A. modifying a table to prevent data that violate certain conditions from being entered in a column
- B. preventing data retrieval from a table outside of office hours
- C. providing an alternative name for a table
- D. creating multiple savepoints to enable partial rollback of a transaction
- E. preventing any data modification to a table
Answer: A,C,E
NEW QUESTION 49
Examine these SQL statements that are executed in the given order:
What will be the status of the foreign key EMP_MGR_FK?
- A. It will be enabled and immediate.
- B. It will remain disabled and can be enabled only by dropping the foreign key constraint and re-creating it.
- C. It will remain disabled and can be re-enabled manually.
- D. It will be enabled and deferred.
Answer: C
NEW QUESTION 50
Which three actions can you perform only with system privileges? (Choose three.)
- A. Execute a procedure in another schema.
- B. Query any table in a database.
- C. Use the WITH GRANT OPTIONclause.
- D. Access flat files via a database, which are stored in an operating system directory.
- E. Truncate a table in another schema.
- F. Log in to a database.
Answer: B,C,F
NEW QUESTION 51
Which statement is true about transactions?
- A. A combination of DDL and DML statements executed in a sequence ending with a COMMIT forms a single transaction.
- B. A set of Data Manipulation Language (DML) statements executed in a sequence ending with a SAVEPOINT forms a single transaction.
- C. Each Data Definition Language (DDL) statement executed forms a single transaction.
- D. A set of DDL statements executed in a sequence ending with a COMMIT forms a single transaction.
Answer: C
Explanation:
https://docs.oracle.com/database/121/CNCPT/transact.htm#CNCPT038
NEW QUESTION 52
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