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Oracle 1z1-071 Exam Syllabus Topics:

Section	Objectives
Subqueries and Advanced SQL	- Correlated subqueries and nested queries - Single-row and multi-row subqueries
Relational Database Concepts	- Data types and database objects overview - Tables, rows, columns, and relational model basics
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. INNER, OUTER, CROSS joins 2. UNION, INTERSECT, MINUS - SELECT statements and filtering data 1. ORDER BY and row limiting 2. WHERE clause and conditions
SQL Functions	- Conversion and conditional functions 1. TO_CHAR, TO_NUMBER, CASE expressions - Single-row functions 1. Character, numeric, date functions

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Oracle Database SQL Sample Questions (Q203-Q208):

NEW QUESTION # 203
You need to list the employees in DEPARTMENT_ID20 days in a single row, ordered by HIRE_DATE.
Examine the sample output:

Which query will provide the required output?
SELECT LISTAGG(last_name)

A. WITHIN GROUP ORDER BY (hire_date) "Emp_list", MIN(hire_date) "Earliest" FROM employees WHERE department_id = 30; SELECT LISTAGG(last_name, '; ')
B. WITHIN GROUP ORDER BY (hire_date) "Emp_list", MIN(hire_date) "Earliest" FROM employees WHERE department_id = 30; SELECT LISTAGG(last_name, '; ') "Emp_list", MIN(hire_date) "Earliest"
C. FROM employees
WHERE department_id = 30;
WITHIN GROUP ORDER BY (hire_date);
SELECT LISTAGG(last_name, '; ') "Emp_list", MIN(hire_date) "Earliest"
D. FROM employees
WHERE department_id = 30;
ORDER BY (hire_date);

Answer: B

NEW QUESTION # 204
View the Exhibit and examine the details of the ORDER_ITEMS table.

Evaluate the following SQL statements:
Statement 1:
SELECT MAX(unit_price*quantity) "Maximum Order"
FROM order_items;
Statement 2:
SELECT MAX(unit_price*quantity) "Maximum Order"
FROM order_items
GROUP BY order_id;
Which statements are true regarding the output of these SQL statements? (Choose all that apply.)

A. Statement 2 would return multiple rows of output.
B. Statement 1 would return only one row of output.
C. Both the statements would give the same output.
D. Both statements would ignore NULL values for the UNIT_PRICE and QUANTITY columns.
E. Statement 1 would not return give the same output.

Answer: A,B,D

NEW QUESTION # 205
Which two are true about savepoints?

A. They make uncommitted updates visible to other sessions owned by the? same user.
B. After issuing a savepoint, you cannot roll back the complete transaction.
C. You can commit updates done between two savepoints without committing other updates In the current transaction.
D. After issuing a savepoint, you can roll back to the savepoint name within the current transaction.
E. They make uncommitted updates visible to sessions owned by other users.
F. A rollback to savepoint command issued before the start of a transaction results In an error.

Answer: A,D

NEW QUESTION # 206
Examine the description of the SALES1 table:

SALES2 is a table with the same description as SALES1,
Some sales data is duplicated In both tables.
You want to display the rows from the SALES1 table which are not present in the SALIES2 table.
Which set operator generates the required output?

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

Answer: D

NEW QUESTION # 207
Examine the description of the PRODCTS table which contains data:

Which two are true?

A. The EXPIRY DATE column data type can be changed to TIME STAMP.
B. The PROD ID column can be renamed.
C. The PROD NAME column cannot have a DEFAULT clause added to it.
D. The PROD_ ID column data type can be changed to VARCHAR2 (2).
E. The EXPIRY DATE column cannot be dropped.

Answer: A,B

NEW QUESTION # 208
......

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