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Oracle 1z1-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q242-Q247):

NEW QUESTION # 242
Evaluate the following SQL statement:

Which statement is true regarding the outcome of the above query?

A. It executes successfully and displays rows in the descending order of PROMO_CATEGORY.
B. It executes successfully but ignores the ORDER BY clause because it is not located at the end of the compound statement.
C. It produces an error because the ORDER BY clause should appear only at the end of a compound query-that is, with the last SELECT statement.
D. It produces an error because positional notation cannot be used in the ORDER BY clause with SET operators.

Answer: C

NEW QUESTION # 243
In the PROMOTIONS table, the PROMO_ BEGIN_DATE column is of data type and the default date format is DD-MON-RR
Which two statements are true about expressions using PROMO_ BEGIN_DATE in a query?

A. PROMO_ BEGIN_DATE - SYSDATE will return a number
B. PROMO_ BEGIN_DATE - SYSDATE will return an error
C. PROMO_ BEGIN_DATE - 5 will return a date
D. TODATE(PROMO BEGIN_DATE *5) will return a date
E. TONUMBER (PROMO BEGIN_DATE) - 5 will return a number

Answer: A,C

NEW QUESTION # 244
View the Exhibit and examine the structure of the EMPLOYEES and JOB_HISTORY tables.

Examine this query which must select the employee IDs of all the employees who have held the job SA_MAN at any time during their employment.
SELECT EMPLOYEE_ID
FROM EMPLOYEES
WHERE JOB_ID = 'SA_MAN'
-------------------------------------
SELECT EMPLOYEE_ID
FROM JOB_HISTORY
WHERE JOB_ID = 'SA_MAN';
Choose two correct SET operators which would cause the query to return the desired result.

A. UNION ALL
B. UNION
C. MINUS
D. INTERSECT

Answer: A,B

Explanation:
Explanation/Reference:

NEW QUESTION # 245
Examine the structure proposed for the TRANSACTIONS table:

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

A. The CUST_STATUS column would allow storage of data up to the maximum VARCHAR2 size of 4,000 characters.
B. The TRANS_DATE column would allow storage of dates only in the dd-mon-yyyy format.
C. The TRANS_VALIDITY column would allow storage of a time interval in days, hours, minutes, and seconds.
D. The CUST_CREDIT_VALUE column would allow storage of positive and negative integers.

Answer: C,D

NEW QUESTION # 246
In which normal form is a table, if it has no multi-valued attributes and no partial dependencies?

A. first normal form
B. third normal form
C. second normal form
D. fourth normal form

Answer: C

Explanation:
References:
https://blog.udemy.com/database-normal-forms/

NEW QUESTION # 247
......

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