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Oracle 1z1-071 Exam Syllabus Topics:

Section	Objectives
SQL Retrieval	- SELECT statements and filtering data 1. WHERE clause and conditions 2. ORDER BY and row limiting - Joins and set operations 1. INNER, OUTER, CROSS joins 2. UNION, INTERSECT, MINUS
Subqueries and Advanced SQL	- Single-row and multi-row subqueries - Correlated subqueries and nested queries
Data Manipulation and Schema Objects	- DDL operations 1. CREATE, ALTER, DROP tables and constraints - DML operations 1. INSERT, UPDATE, DELETE, MERGE
Relational Database Concepts	- Data types and database objects overview - Tables, rows, columns, and relational model basics
SQL Functions	- Single-row functions 1. Character, numeric, date functions - Conversion and conditional functions 1. TO_CHAR, TO_NUMBER, CASE expressions

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Oracle Database SQL Sample Questions (Q346-Q351):

NEW QUESTION # 346
Which two are true about granting privileges on objects? (Choose two.)

A. The WITH GRANT OPTIONclause can be used only by DBA users.
B. An object privilege can be granted to other users only by the owner of that object.
C. A table owner must grant the REFERENCESprivilege 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 privileges on that object by default.

Answer: C,E

Explanation:
Explanation/Reference: https://docs.oracle.com/cd/B19306_01/network.102/b14266/authoriz.htm#i1008214

NEW QUESTION # 347
View the Exhibit and examine PRODUCTS and ORDER_ITEMS tables.

You executed the following query to display PRODUCT_NAME and the number of times the product has been ordered:
SQL>SELECT p.product_name, i.item_cnt
FROM (SELECT product_id, COUNT (*) item_cnt
FROM order_items
GROUP BY product_id) i RIGHT OUTER JOIN products p
ON i.product_id = p.product_id;
What would happen when the above statement is executed?

A. The statement would not execute because the ITEM_CNT alias cannot be displayed in the outer query.
B. The statement would not execute because the GROUP BY clause cannot be used in the inline.
C. The statement would not execute because inline views and outer joins cannot be used together.
D. The statement would execute successfully to produce the required output.

Answer: D

NEW QUESTION # 348
View the Exhibit and examine the description of the EMPLOYEES table.

You want to calculate the total renumeration for each employee. Total renumeration is the sum of the annual salary and the percentage commission earned for a year. Only a few employees earn commission.
Which SQL statement would you execute to get the desired output?

A. SELECT first_name, salary, salary*12+salary*commission_pct "Total"FROM EMPLOYEES;
B. SELECT first_name, salary (salary + NVL (commission_pct, 0)*salary)*12 "Total"FROM EMPLOYEES;
C. SELECT first_name, salary*12 + NVL(salary,0)*commission_pct, "Total"FROM EMPLOYEES;
D. SELECT first_name, salary, salary*12+(salary*NVL2 (commission_pct,
salary,salary+commission_pct))"Total"FROM EMPLOYEES;

Answer: D

NEW QUESTION # 349
Which two statements about INVISIBLE indexes are true?

A. All INSERT, UPDATE, and DELETE statements maintain entries in the index
B. The query optimizer never considers INVISIBLE Indexes when determining execution plans
C. You use AlTER INDEX to make an INVISIBLE Index VISIBLE
D. an INVISIBLE Index consumes no storage
E. You can only create one INVISIBLE index on the same column list

Answer: A,C

Explanation:
INVISIBLE indexes are a feature in Oracle Database 12c and later versions that allow an index to be maintained but not used by the optimizer unless explicitly hinted.
A). False. An INVISIBLE index still consumes storage space as it is maintained in the background.
B). False. There is no such restriction. You can create multiple INVISIBLE indexes on the same column list.
C). False. The optimizer can consider INVISIBLE indexes if they are hinted at in the query.
D). True. You can alter the visibility of an index using the ALTER INDEX command to make an INVISIBLE index VISIBLE.
E). True. Even though they are invisible to the optimizer by default, all DML operations such as INSERT, UPDATE, and DELETE continue to maintain the index as they would with a VISIBLE index.

NEW QUESTION # 350
Which two statements are true about Oracle synonyms?

A. A synonym has an object number.
B. A synonym can have a synonym.
C. Any user can create a public synonym.
D. All private synonym names must be unique in the database.
E. A synonym can be created on an object in a package.

Answer: C,E

Explanation:
Oracle synonyms are used to simplify the referencing of complex schema objects:
* Option A: Incorrect. A synonym cannot have another synonym; it directly references the base object.
* Option B: Incorrect. A synonym does not have an object number as it is merely an alias for another
* object.
* Option C: Correct. Any user with sufficient privileges can create a public synonym, which is accessible to all users in the database.
* Option D: Incorrect. All private synonym names must be unique within a schema but not across the entire database.
* Option E: Correct. Synonyms can be created for objects within packages, such as procedures or functions, simplifying the referencing of these objects without needing to specify the full package name.

NEW QUESTION # 351
......

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