1Z0-071 RELIABLE TEST PRICE - 1Z0-071 AUTHORIZED EXAM DUMPS

1z0-071 Reliable Test Price - 1z0-071 Authorized Exam Dumps

1z0-071 Reliable Test Price - 1z0-071 Authorized Exam Dumps

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ORACLE 1z0-071 Certification Exam is an Oracle Database 12c Database Administrator (DBA) certification exam. Oracle 1z0-071 DBA certification is a prerequisite for other exams in the business and technical areas of Database Administration. In this article, we are going to discuss the Oracle 1Z0-071, basic information about this exam, and the best Sources for the preparation of the exam. Oracle 1z0-071 Dumps is the best resource for the preparation for this certification exam. This article serves as a teaching guide to prepare you for the exam and set you up for future success and privileges.

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Oracle 1z1-071, also known as the Oracle Database SQL certification exam, is a professional certification exam offered by Oracle Corporation. 1z0-071 exam focuses on testing the candidates' knowledge and skills in SQL programming language and Oracle database management systems. Passing 1z0-071 Exam certifies that the individual has the necessary skills and knowledge to work with Oracle databases and SQL programming.

Oracle Database SQL Sample Questions (Q262-Q267):

NEW QUESTION # 262
Which two are true about external tables that use the ORACLE _DATAPUMP access driver?

  • A. Creating an external table creates a dump file that can be used only by an external table in the same database.
  • B. When creating an external table, data can be selected only from a table whose rows are stored in database blocks.
  • C. Creating an external table creates a directory object.
  • D. When creating an external table, data can be selected from another external table or from a table whose rows are stored in database blocks.
  • E. Creating an external table creates a dump file that can be used by an external table in the same or a different database.

Answer: D

Explanation:
External tables using the ORACLE_DATAPUMP access driver have specific characteristics:
C . Creating an external table using the ORACLE_DATAPUMP access driver allows you to select data from other tables, including another external table or a regular table whose rows are stored in database blocks.
A, B, D, and E are incorrect. Specifically:
A is incorrect because creating an external table does not automatically create a directory object; the directory object must exist prior to or be created separately.
B is incorrect as it limits the creation to tables stored in database blocks, which is not a restriction.
D is incorrect because creating an external table does not create a dump file; it reads from an existing dump file created by Data Pump.
E is also incorrect because the dump file is not created as part of the external table creation process.
Reference:
Oracle Database SQL Language Reference, 12c Release 1 (12.1): "CREATE TABLE" for External Tables


NEW QUESTION # 263
Examine this SELECT statement and view the Exhibit to see its output:

SELECT constraints_name, constraints_type, search_condition, r_constraints_name, delete_rule, status, FROM user_constraints WHERE table_name = 'ORDERS'; Which two statements are true about the output? (Choose two.)

  • A. The STATUS column indicates whether the table is currently in use.
  • B. In the second column, 'c' indicates a check constraint.
  • C. The DELETE_RULE column indicates the desired state of related rows in the child table when the corresponding row is deleted from the parent table.
  • D. The R_CONSTRAINT_NAME column contains an alternative name for the constraint.

Answer: B,C


NEW QUESTION # 264
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 # 265
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 DISTINCT promo_category ||'has'|| promo_cost AS COSTS FROM promotions ORDER BY 1;
  • B. SELECT promo_category, DISTINCT promo_cost PROM promotions ORDER BY 2:
  • C. SELECT promo_cost, | pxomo_category FROM promotions ORDER BY 1;
  • D. SELECT DISTINCT promo_category, promo_cost FROM promotions ORDER BY 1;
  • E. SELECT DISTINCT promo_cost ||' in' II DISTINCT promo_category FROM promotions ORDER BY 1;

Answer: A,D

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 # 266
You execute the SQL statement:

What is the outcome?

  • A. It fails because the NOT NULL and DEFAULT options cannot be combined for the same column.
  • B. It succeeds and CITY can contain only 'SEATTLE' or null for all rows.
  • C. It fails because the condition for the CNAMES constraint is not valid.
  • D. It succeeds and an index is created for CITIZEN_ID.

Answer: A


NEW QUESTION # 267
......

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