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Oracle 1z0-071 Exam Syllabus Topics:

Section	Objectives
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
Data Manipulation and Schema Objects	- DDL operations 1. CREATE, ALTER, DROP tables and constraints - DML operations 1. INSERT, UPDATE, DELETE, MERGE
SQL Functions	- Conversion and conditional functions 1. TO_CHAR, TO_NUMBER, CASE expressions - Single-row functions 1. Character, numeric, date functions
SQL Retrieval	- Joins and set operations 1. INNER, OUTER, CROSS joins 2. UNION, INTERSECT, MINUS - SELECT statements and filtering data 1. ORDER BY and row limiting 2. WHERE clause and conditions

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Oracle Database SQL Sample Questions (Q340-Q345):

NEW QUESTION # 340
You have the privileges to create any type of synonym.
Which statement will create a synonym called EMPfor the HCM.EMPLOYEE_RECORDS table that is accessible to all users?

A. CREATE PUBLIC SYNONIM emp FOR hcm.employee_records;
B. CREATE SYNONIM SYS.emp FOR hcm.employee_records;
C. CREATE SYNONIM emp FOR hcm.employee_records;
D. CREATE GLOBAL SYNONIM emp FOR hcm.employee_records;
E. CREATE SYNONIM PUBLIC.emp FOR hcm.employee_records;

Answer: A

Explanation:
CREATE PUBLIC SYNONYM emp_table
Reference: https://docs.oracle.com/database/121/SQLRF/statements_7001.htm#SQLRF01401

NEW QUESTION # 341
View the Exhibit and examine the structure of ORDER_ITEMS and ORDERS tables.

You need to remove from the ORDER_ITEMS table those rows that have an order status of 0 or 1 in the ORDERS table.
Which two DELETE statements are valid (Choose two.)
DELETE *

A. FROM order_items
WHERE order_id IN (SELECT order_id
FROM orders
WHERE orders_status in (0,1));
B. WHERE order_id = (SELECT order_id FROM orders o
WHERE i.order_id = o.order_id AND order_status IN (0,1));
DELETE
C. FROM order_items
WHERE order_id IN (SELECT order_id)
FROM orders
WHERE order_status IN (0,1));
DELETE
D. FROM (SELECT * FROM order_items I,orders o
WHERE i.order_id = o.order_id AND order_status IN (0,1));
DELETE FROM order_items i

Answer: A,D

Explanation:
Explanation/Reference:

NEW QUESTION # 342
Evaluate the following ALTER TABLEstatement:
ALTER TABLE orders
SET UNUSED (order_date);
Which statement is true?

A. The DESCRIBEcommand would still display the ORDER_DATEcolumn.
B. The ORDER_DATEcolumn should be empty for the ALTER TABLEcommand to execute succsessfully.
C. After executing the ALTER TABLEcommand, you can add a new column called ORDER_DATEto the ORDERStable.
D. ROLLBACKcan be used to get back the ORDER_DATEcolumn in the ORDERStable.

Answer: C

NEW QUESTION # 343
Examine the description of the EMPLOYEES table:

NLS_DATE FORMAT is DD-MON-RR.
Which two queries will execute successfully?

A. SELECT dept id, MAX (SUM(salary)) FROM employees GROUP BY dept_id;
B. SELECT dept_ id, AVG(MAX(salary)) FROM employees GROUP BY dept_id, salary;
C. SELECT AVG(MAX(salary)) FROM employees GROUP BY salary;
D. SELECT dept_ iD, sum(salary) FROM employees WHERE hire_date > '01-JAN-9' GROUP BY dept_id;
E. SELECT dept_ id, AVG (MAX(salary)) FROM employees GROUP By dept_id HAVING hire_date> ' O1-JAN-19';

Answer: C,D

NEW QUESTION # 344
Which two statements are true about selecting related rows from two tables based on an Entity Relationship Diagram (ERD)? (Choose two.)

A. Relating data from a table with data from the same table is implemented with a self join
B. An inner join relates rows within the same table
C. Implementing a relationship between two tables might require joining additional tables
D. Rows from unrelated tables cannot be joined
E. Every relationship between the two tables must be implemented in a join condition

Answer: A,C

NEW QUESTION # 345
......

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