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Oracle 1z0-071, also known as the Oracle Database SQL Certification Exam, is an industry-recognized certification that validates the skills and knowledge of professionals in SQL development and database management. Oracle Database SQL certification exam is designed for individuals who want to demonstrate their ability to write SQL statements, manage database objects, and perform other database-related tasks.

The Oracle 1z0-071 Exam covers a wide range of topics related to SQL and relational database management, including understanding SQL statements, managing database objects, manipulating data, and controlling user access to databases. 1z0-071 exam is designed to test the candidate's knowledge of SQL syntax, database design concepts, and data manipulation techniques.

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Oracle 1z0-071 Certification Exam, also known as the Oracle Database SQL Exam, is a highly sought-after certification for IT professionals who work with Oracle databases. 1z0-071 exam is designed to test the candidate's knowledge and skills in SQL and the use of Oracle Database 12c. 1z0-071 Exam covers topics such as database design, data manipulation, data control language, and transactions. Passing 1z0-071 exam demonstrates that the candidate has a strong understanding of SQL and the ability to use Oracle Database 12c.

Oracle Database SQL Sample Questions (Q283-Q288):

NEW QUESTION # 283
View and Exhibit and examine the structure and data in the INVOICE table.

Which two statements are true regarding data type conversion in query expressions? (Choose two.)

A. CONCAT(inv_amt, inv_date) : requires explicit conversion
B. inv_date > '01-02-2008' : uses implicit conversion
C. inv_date = '15-february-2008' :uses implicit conversion
D. inv_no BETWEEN '101' AND '110' : uses implicit conversion
E. inv_amt = '0255982' : requires explicit conversion

Answer: C,D

NEW QUESTION # 284
Examine this data in the EMPLOYERS table

Which statement will execute successfully?

A. SELECT dept_id, MAX (Last_name), SUM (salary) FROM employees GROUP BY dept_id
B. SELECT dept_id, INSTR (last_name,'A'), SUM (salary) FROM employees GROUP BY dept_id
C. SELECT dept_id, LENGTH (last_name), SUM (salary) FROM employees GROUP BY dept_id
D. SELECT dept_id, STDDEV (last_name), SUM (salary) FROM employees GROUP BY dept_id

Answer: A

NEW QUESTION # 285
Which two statements are true about conditional INSERT ALL?

A. A single WHEN condition can be used for multiple INTO clauses.
B. The total number of rows inserted is always equal to the number of rows returned by the subquery
C. Each WHEN condition is tested for each row returned by the subquery.
D. It cannot have an ELSE clause.
E. Each row returned by the subquery can be inserted into only a single target table.

Answer: A,C

Explanation:
For conditional INSERT ALL in Oracle Database 12c:
D . A single WHEN condition can be used for multiple INTO clauses. This is true. A single WHEN condition in a multi-table insert can direct the insertion of a single row source into multiple target tables.
E . Each WHEN condition is tested for each row returned by the subquery. True, each row from the subquery is evaluated against each WHEN condition to determine into which table(s) the row should be inserted.
Options A, B, and C are incorrect:
A is incorrect because a row can indeed be directed into multiple tables based on the conditions.
B is incorrect as INSERT ALL can include an ELSE clause to handle rows that do not meet any of the specified conditions.
C is incorrect because not every row from the subquery necessarily results in a row insertion; it depends on the conditions being met.

NEW QUESTION # 286
Examine the structure of the CUSTOMERS table: (Choose two.)

CUSTNO is the PRIMARY KEY.
You must determine if any customers' details have been entered more than once using a different CUSTNO, by listing all duplicate names.
Which two methods can you use to get the required result?

A. Right outer-join with self-join
B. Subquery
C. Full outer-join with self-join
D. Left outer-join with self-join
E. Self-join

Answer: B,E

NEW QUESTION # 287
Which two are true about transactions In the Oracle Database?

A. A session can see uncommitted updates made by the same user In a different session.
B. DML statements always start new transactions.
C. An uncommitted transaction Is automatically committed when the user exits SQ1 -Plus.
D. A DDL statement Issued by a session with an uncommitted transaction automatically commits that transaction.
E. DDL statements automatically commit only data dictionary updates caused by executing the DDL

Answer: A,C

NEW QUESTION # 288
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