1Z0-071 RELIABLE TEST NOTES, ACCURATE 1Z0-071 ANSWERS

1z0-071 Reliable Test Notes, Accurate 1z0-071 Answers

1z0-071 Reliable Test Notes, Accurate 1z0-071 Answers

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Oracle 1z1-071: Oracle Database SQL exam is an essential certification for professionals working with Oracle databases. Oracle Database SQL certification demonstrates a candidate's proficiency in SQL programming language and provides a foundation for advanced Oracle certifications. 1z0-071 exam covers a broad range of SQL topics, and candidates are expected to have a good understanding of SQL syntax and be able to write complex SQL queries.

Oracle 1z0-071 Certification Exam is a multiple-choice exam that consists of 73 questions. You have 105 minutes to complete the exam, and the passing score is 63%. 1z0-071 exam is available in multiple languages, including English, Japanese, and Simplified Chinese.

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Oracle 1z0-071 certification exam is a computer-based test that consists of 73 multiple-choice questions. 1z0-071 exam has a duration of 105 minutes, and the passing score is 63%. 1z0-071 exam fee is $245, and candidates can register for the exam through the Oracle Certification website. To prepare for the exam, candidates can take advantage of various training resources, including online courses, practice exams, and study guides. Passing the Oracle 1z0-071 Certification Exam is an excellent way to validate your SQL programming skills and enhance your career opportunities in the database industry.

Oracle Database SQL Sample Questions (Q97-Q102):

NEW QUESTION # 97
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. 100 "DUES AMOUNT" FROM transactions;
    SELECT customer_id CUSTID, transaction_date TRANS_DATE, amount +100 DUES FROM
  • B. "DUES" FROM transactions;
    SELECT customer_id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount +
  • C. DUES FROM transactions;
    SELECT customer_id AS 'CUSTOMER-ID', transaction_date AS DATE, amount + 100
  • D. 'DUES' FROM transactions;
  • E. transactions;
    SELECT customer_id AS "CUSTOMER-ID", transaction_date AS "DATE", amount + 100

Answer: C,E


NEW QUESTION # 98
Examine the data in the ORD_ITEMS table:

Evaluate this query:

Which statement is true regarding the result?

  • A. It displays the item nos with their average quantity where the average quantity is more than double the minimum quantity of that item in the table.
  • B. It returns an error because all the aggregate functions used in the HAVINGclause must be specified in the SELECT list.
  • C. It displays the item nos with their average quantity where the average quantity is more than double the overall minimum quantity of all the items in the table.
  • D. It returns an error because the HAVINGclause should be specified after the GROUP BYclause.

Answer: A


NEW QUESTION # 99
Which two statements are true about a self join?

  • A. The join key column must have an index.
  • B. It must be a full outer join.
  • C. It must be an equijoin.
  • D. It can be an inner join.
  • E. It can be a left outer join.

Answer: D,E

Explanation:
A self join is a regular join, but the table is joined with itself. This kind of join can take the form of an inner join, a left outer join, or even a full outer join depending on the requirement.
A . The join key column must have an index. (Incorrect)
While indexes can improve the performance of joins by reducing the cost of the lookup operations, they are not a requirement for a self join. A self join can be performed with or without an index on the join key columns.
B . It can be a left outer join. (Correct)
A self join can indeed be a left outer join. This is useful when you want to include all records from the 'left' side of the join (the table itself), even if the join condition does not find any matching record on the 'right' side (the table itself again).
Reference:
C . It must be a full outer join. (Incorrect)
A self join does not need to be a full outer join; it can be any type of join depending on what the query needs to accomplish.
D . It can be an inner join. (Correct)
Just like with any two different tables, a self join can be an inner join. This would return only the rows with matching values in the self join condition.
E . It must be an equijoin. (Incorrect)
Although self joins are often equijoins, meaning the join condition is based on equality, they do not have to be. Self joins can use other operators such as <, >, <=, >=, !=, etc., depending on the requirements of the query.


NEW QUESTION # 100
Which two queries return the string Hello! we're ready?

  • A. SELECT q'! Hello! We're ready! 'FROM DUAL;
  • B. SELECT 'Hello! We're ready' FROM DUAL;
  • C. SELECT q'[Hello! We're ready]'FROM DUAL;
  • D. SELECT "Hello! We're ready "FROM |DUAL;
  • E. SELECT 'Hello! we re ready' ESCAPE'N'FROMDUAL:

Answer: A,C

Explanation:
In Oracle SQL, the q quote operator can be used to define string literals that contain single quotes or other special characters without needing to escape them. The queries using the q quote mechanism, like in options A and C, will successfully return the string as it is, including single quotes within the string.
* A: Correct, it uses the q quote operator with the exclamation mark ! as the delimiter, which allows the string to contain single quotes.
* B: Incorrect, double quotes " in Oracle SQL are used for identifiers such as column names, not string literals.
* C: Correct, this also uses the q quote operator, with the square brackets [] as the delimiters.
* D: Incorrect, the backslash is not used as an escape character in Oracle SQL string literals, and the ESCAPE keyword is used incorrectly here.
* E: Incorrect, this does not account for the single quote within the string, which would terminate the string literal prematurely, and it lacks the q quote operator or proper escape mechanism.


NEW QUESTION # 101
Which two are true about granting privilege on objects?

  • A. An object privilege can be granted to other users only by the owner of object.
  • B. The WITH GRANT OPTION clause can be used only by DBA users.
  • C. A table owner must grant the references privilege to allow other users to create FOREIGN KEY constraints using that table.
  • D. An object privilege can be granted to a role only by the owner of that object.
  • E. The owner of an object acquires all object privilege on that object by default.

Answer: C,E


NEW QUESTION # 102
......

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