1Z0-071 CERTIFICATION TRAINING & 1Z0-071 DUMPS TORRENT & 1Z0-071 EXAM MATERIALS

1z0-071 Certification Training & 1z0-071 Dumps Torrent & 1z0-071 Exam Materials

1z0-071 Certification Training & 1z0-071 Dumps Torrent & 1z0-071 Exam Materials

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In today’s society, there are increasingly thousands of people put a priority to acquire certificates to enhance their abilities. With a total new perspective, 1z0-071 study materials have been designed to serve most of the office workers who aim at getting a 1z0-071 certification. The 1z0-071 test guide offer a variety of learning modes for users to choose from, which can be used for multiple clients of computers and mobile phones to study online, as well as to print and print data for offline consolidation. We sincere hope that our 1z0-071 Exam Questions can live up to your expectation.

Exam Topics

The Oracle 1z0-071 exam checks the candidates’ expertise in a wide range of technical areas. The description of each topic included in this certification test is outlined below:

  • Understanding Relational Database Concepts: Within this objective, the test takers should demonstrate that they are capable of describing both physical and theoretical relation database aspects; associating the clauses within SQL Select Statement with the ERD components; describing the link between SQL and a database.
  • Managing Indexes Synonyms & Sequences: This domain focuses on such technical skills as handling indexes; handling sequences as well as handling synonyms.
  • Managing Data in Different Time Zones: The topic requires that the applicants possess competency in operating with CURRENT_TIMESTAMP, LOCALTIMESTAMP, and CURRENT_DATE, as well as dealing with INTERVAL data types.
  • Managing Views: This area comes with the abilities, such as differentiating object privileges from system privileges; granting privileges on tables; distinguishing between granting roles and privileges.
  • Sorting & Restricting Data: Here, the applicants must be conversant with implementing precedence rules for the operators within an expression; restricting Rows Returned within the SQL Statement; utilizing Substitution Variables; utilizing VERIFY as well as DEFINE commands.
  • Managing Tables with the Help of DML Statements: Here, the individuals should know how to manage database transactions; control transactions; implement update, delete, and insert, operations; execute multi-table inserts; execute merge statements.
  • Showcasing Data from Multiple Tables: In the framework of this area, the examinees need to prove their proficiency in utilizing self-joins; utilizing different joins types; utilizing non equijoins; utilizing OUTER joins; describing and utilizing Cartesian products.
  • Using Subqueries to Solve Queries: The skills covered in this topic include utilizing single row subqueries; upgrading and deleting rows with the help of correlated subqueries; utilizing multiple-row subqueries.

Oracle 1z0-071 (Oracle Database SQL) certification exam is designed for database professionals who want to demonstrate their expertise in SQL development and database management. 1z0-071 exam will test the candidate's knowledge of SQL syntax, data manipulation language (DML), data definition language (DDL), and database security. 1z0-071 exam also covers topics such as database objects, data modeling, and database administration. Passing 1z0-071 exam will prove that the candidate has the necessary skills to manage Oracle databases and to write efficient SQL queries.

To prepare for the exam, Oracle recommends that candidates have a solid understanding of SQL fundamentals and a good understanding of Oracle Database concepts. Candidates can take advantage of training courses, study guides, and practice exams to prepare for the exam. Oracle also provides an exam preparation guide that outlines the topics covered in the exam and provides sample questions for each topic.

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Oracle Database SQL Sample Questions (Q18-Q23):

NEW QUESTION # 18
Examine this query which executes successfully:
SELECT job, deptno FROM emp
UNION ALL
SELECT job, deptno FROM jobs_ history;
What will be the result?

  • A. It will return rows that are not common to both SELECT statements.
  • B. It will return rows from both SELECT statements including duplicate rows.
  • C. It will return rows from both SELECT statements after eliminating duplicate rows.
  • D. It will return rows common to both SELECT statements.

Answer: B

Explanation:
The UNION ALL operator in SQL is used to combine the results of two or more SELECT statements:
* Option D: It will return rows from both SELECT statements including duplicate rows.
* UNION ALL does not eliminate duplicates; it simply combines all rows from the queries provided.
Options A, B, and C are incorrect as they describe behaviors of other set operators:
* Option A: Describes the behavior of INTERSECT, not UNION ALL.
* Option B: Describes the behavior of UNION, not UNION ALL.
* Option C: Describes the behavior of EXCEPT or MINUS, not UNION ALL.


NEW QUESTION # 19
Examine the description of the PROMTIONS table:

You want to display the unique promotion costs in each promotion category.
Which two queries can be used?

  • A. SELECT promo_category, DISTINCT promo_cost PROM promotions ORDER BY 2:
  • B. SELECT DISTINCT promo_category ||'has'|| promo_cost AS COSTS FROM promotions ORDER BY 1;
  • C. SELECT DISTINCT promo_category, promo_cost FROM promotions ORDER BY 1;
  • D. SELECT DISTINCT promo_cost ||' in' II DISTINCT promo_category FROM promotions ORDER BY 1;
  • E. SELECT promo_cost, | pxomo_category FROM promotions ORDER BY 1;

Answer: B,C

Explanation:
To display unique promotion costs in each promotion category, the correct queries that can be used are:
C . SELECT DISTINCT promo_category ||' has '|| promo_cost AS COSTS FROM promotions ORDER BY 1; This query concatenates the promo_category with the literal ' has ' and promo_cost, giving a unique string for each combination of promo_category and promo_cost, which is what we are interested in when we want to list unique costs per category.
D . SELECT DISTINCT promo_category, promo_cost FROM promotions ORDER BY 1; This query selects distinct combinations of promo_category and promo_cost, which is exactly what's required to display unique promotion costs in each category.
Options A, B, and E are incorrect:
A is incorrect because it does not use the DISTINCT keyword to ensure uniqueness.
B has incorrect syntax; the DISTINCT keyword should appear directly after SELECT and applies to all columns, not just one.
E is syntactically incorrect and would not execute because the DISTINCT keyword is not used correctly. It should not appear twice in the SELECT clause.


NEW QUESTION # 20
Examine the structure proposed for the TRANSACTIONS table:

Which two statements are true regarding the creation and storage of data in the above table structure? (Choose two.)

  • A. The CUST_CREDIT_LIMIT column would be able to store decimal values.
  • B. The CUST_STATUS column would store exactly one character.
  • C. The CUST_STATUS column would give an error.
  • D. The TRANS_DATE column would be able to store day, month, century, year, hour, minutes, seconds, and fractions of seconds.
  • E. The TRANS_VALIDITY column would give an error.
  • F. The TRANS_VALIDITY column would have a maximum size of one character.

Answer: B,E


NEW QUESTION # 21
Which two are true about queries using set operators (UNION, UNION ALL, INTERSECT and MINUS?

  • A. The must be an equal number of columns In each select list.
  • B. Each select statement In the query can have an order by clause.
  • C. The name off each column in the first Select list must match the name of the corresponding column In each subsequent select list.
  • D. The FOR update clause cannot be specified.
  • E. None of the set operators can be used when selecting CLOB columns.

Answer: A,D


NEW QUESTION # 22
Evaluate these commands which execute successfully:

Which two statements are true about the ORD_ITEMS table and the ORD_SEQ sequence?

  • A. Sequence ORD_SEQ is guaranteed not to generate duplicate numbers.
  • B. Column ORD_NO gets the next number from sequence ORD_SEQ whenever a row is inserted into ORD_ITEMS and no explicit value is given for ORD_NO.
  • C. Any user inserting rows into table ORD_ITEMS must have been granted access to sequence ORD_SEQ.
  • D. If sequence ORD_SEQ is dropped then the default value for column ORD_NO will be NULL for rows inserted into ORD_ITEMS.
  • E. Sequence ORD_SEQ cycles back to 1 after every 5000 numbers and can cycle 20 times.

Answer: A,C


NEW QUESTION # 23
......

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