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Oracle 1z1-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q411-Q416):

NEW QUESTION # 411
You want to write a query that prompts for two column names and the WHERE condition each time It is executed in a session but only prompts for the table name the first time it is executed. The variables used in your
query are never undefined in your session . Which query can be used?

A. SELECT &col1, &col2
FROM &&table
WHERE &condition;
B. SELECT &&col1,&&col2
FROM &table
WHERE &&condition= &&cond;
C. SELECT&&col1, &&col2
FROM &table
WHERE &&condition;
D. SELECT &col1, &col2
FROM "&table"
WHERE &condition;
E. SELECT'&co11','&&co12'
FROM &table
WHERE'&&condition' ='&cond';

Answer: A

NEW QUESTION # 412
The PRODUCTS table has the following structure.

Evaluate the following two SQL statements:
SQL>SELECT prod_id, NVL2 (prod_expiry_date, prod_expiry_date + 15, ' ') FROM products; SQL>SELECT prod_id, NVL (prod_expiry_date, prod_expiry_date + 15) FROM products; Which statement is true regarding the outcome?

A. Only the second SQL statement executes successfully
B. Only the first SQL statement executes successfully
C. Both the statements execute and give different results
D. Both the statements execute and give the same result

Answer: C

Explanation:
Using the NVL2 Function
The NVL2 function examines the first expression. If the first expression is not null, the NVL2 function returns the second expression. If the first expression is null, the third expression is returned.
Syntax
NVL2(expr1, expr2, expr3)
In the syntax:
Expr1 is the source value or expression that may contain a null
Expr2 is the value that is returned if expr1 is not null
Expr3 is the value that is returned if expr1 is null

NEW QUESTION # 413
View the exhibit and examine the description of the PRODUCT_INFORMATION table.

Which SQL statement would retrieve from the table the number of products having LIST_PRICE as NULL?

A. SELECT COUNT (list_price)FROM product_informationWHERE list_price is NULL
B. SELECT COUNT (DISTINCT list_price)FROM product_informationWHERE list_price is NULL
C. SELECT COUNT (list_price)FROM product_informationWHERE list_price i= NULL
D. SELECT COUNT (NVL(list_price, 0))FROM product_informationWHERE list_price is NULL

Answer: D

NEW QUESTION # 414
Examine the description of the SALEStable:

The SALEStable has 55,000 rows.
Examine this statement:

Which two statements are true? (Choose two.)

A. SALES1 is created with no rows.
B. SALES1 is created with 55,000 rows.
C. SALES1 has PRIMARY KEY and UNIQUE constraints on any selected columns which had those constraints in the SALES table.
D. SALES1 has NOT NULL constraints on any selected columns which had those constraints in the SALES table.
E. SALES1 is created with 1 row.

Answer: A,D

Explanation:
https://www.oracle.com/a/ocom/docs/dc/ww-ou-5297-database2019-studyguide-5.pdf

NEW QUESTION # 415
Which three actions can you perform only with system privileges?

A. Truncate a table in another schema.
B. Log in to a database.
C. Use the WITH GRANT OPTION clause.
D. Execute a procedure in another schema.
E. Access flat files via a database, which are stored in an operating system directory.
F. Query any table in a database.

Answer: A,B,E

Explanation:
A). Correct. Truncating a table, especially in another schema, requires the ALTER ANY TABLE or DROP ANY TABLE system privilege. B. Correct. Accessing external files through the database involves the CREATE ANY DIRECTORY privilege, which is a system privilege. C. Correct. Creating a session in a database, which is required to log in, necessitates the CREATE SESSION system privilege. D. Incorrect.
Querying any table is an object privilege, which can be granted by the owner of the table. E. Incorrect. The WITH GRANT OPTION clause is used with object privileges, not system privileges. F. Incorrect. Executing a procedure in another schema requires the EXECUTE object privilege on that procedure.
Oracle Database Security Guide provides the details about system privileges necessary for these actions.

NEW QUESTION # 416
......

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