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Oracle 1z1-071 exam is designed for candidates who wish to validate their knowledge and skills in Oracle Database SQL. 1z1-071 exam is meant for individuals who want to become Oracle Database experts or who are aiming to work in the field of database development or administration. 1z1-071 Exam Tests one's understanding of the SQL language and the use of Oracle Database 12c.

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Oracle 1z0-071 exam covers the fundamental concepts of SQL programming language, including data manipulation, data retrieval, data control, and transaction control. Candidates are expected to be familiar with the basic SQL syntax and have a working knowledge of SQL functions, clauses, and operators. 1z1-071 Exam also assesses a candidate's understanding of database objects such as tables, indexes, views, and sequences.

Oracle Database SQL Sample Questions (Q164-Q169):

NEW QUESTION # 164
View the Exhibit and examine the structure of the CUSTOMERS table.

Using the CUSTOMERS table, you must generate a report that displays a credit limit increase of 15% for all customers.
Customers with no credit limit should have "Not Available" displayed.
Which SQL statement would produce the required result?

A. SELECT NVL(cust_credit_limit,'Not Available')*.15 "NEW CREDIT"FROM customers;
B. SELECT TO_CHAR(NVL(cust_credit_limit*.15,'Not Available')) "NEW CREDIT"FROM customers;
C. SELECT NVL(TO_CHAR(cust_credit_limit*.15),'Not Available') "NEW CREDIT"FROM customers;
D. SELECT NVL(cust_credit_limit*.15,'Not Available') "NEW CREDIT"FROM customers;

Answer: C

NEW QUESTION # 165
Evaluate the following ALTER TABLEstatement:
ALTER TABLE orders
SET UNUSED (order_date);
Which statement is true?

A. ROLLBACKcan be used to get back the ORDER_DATEcolumn in the ORDERStable.
B. After executing the ALTER TABLEcommand, you can add a new column called ORDER_DATEto the ORDERStable.
C. The DESCRIBEcommand would still display the ORDER_DATEcolumn.
D. The ORDER_DATEcolumn should be empty for the ALTER TABLEcommand to execute successfully.

Answer: B

NEW QUESTION # 166
View the Exhibit and examine the structure of the EMP table which is not partitioned and not an index-organized table. (Choose two.)

Evaluate this SQL statement:
ALTER TABLE emp
DROP COLUMN first_name;
Which two statements are true?

A. The FIRST_NAME column would be dropped provided at least one column remains in the table.
B. The FIRST_NAME column can be dropped even if it is part of a composite PRIMARY KEY provided the CASCADE option is added to the SQL statement.
C. The drop of the FIRST_NAME column can be rolled back provided the SET UNUSED option is added to the SQL statement.
D. The FIRST_NAME column would be dropped provided it does not contain any data.

Answer: A

NEW QUESTION # 167
Which statement is true about transactions?

A. A set of DDL statements executed in a sequence ending with a COMMIT forms a single transaction.
B. A combination of DDL and DML statements executed in a sequence ending with a COMMIT forms 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 SAVEPOINT forms a single transaction.

Answer: C

Explanation:
Explanation
References:
https://docs.oracle.com/database/121/CNCPT/transact.htm#CNCPT038

NEW QUESTION # 168
The CUSTOMERStable has a CUST_CREDIT_LIMITcolumn of data type NUMBER.
Which two queries execute successfully? (Choose two.)

A. Available') FROM customers;
SELECT NVL2(cust_credit_limit * .15, 'Not Available') FROM customers;
B. SELECT NVL(cust_credit_limit * .15, 'Not Available') FROM customers;
C. SELECT TO_CHAR(NVL(cust_credit_limit * .15, 'Not Available')) FROM customers;
D. SLECT NVL(TO_CHAR(cust_credit_limit * .15), 'Not Available') FROM customers;
E. SELECT NVL2(cust_credit_limit, TO_CHAR(cust_credit_limit * .15), 'Not

Answer: A,D

NEW QUESTION # 169
......

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