Oracle 1z0-071 Mock Test - 100% Pass Quiz 2026 First-grade 1z0-071 Reliable Dump

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Oracle 1z0-071 Exam Syllabus Topics:

Section	Weight	Objectives
Retrieving Data Using the SQL SELECT Statement	5%	- List the capabilities of SQL SELECT statements - Execute a basic SELECT statement - Differentiate between SQL statements and SQL*Plus commands
Using Set Operators	5%	- Use a set operator to combine multiple queries into a single query - Describe the order of precedence when the set operators are used - Describe set operators
Using Single-Row Functions to Customize Output	10%	- Manipulate numbers with the ROUND, TRUNC, and MOD functions - Describe the differences between single-row and multiple-row functions - Manipulate strings with character function in the SELECT and WHERE clauses - Manipulate dates with the date functions - Perform arithmetic with date data
Working with Oracle Database SQL	8%	- Describe the Oracle Database architecture - Start up and shut down a database - Explain the installation of Oracle Database software - Create a container database
Reporting Aggregated Data Using Group Functions	15%	- Describe the use of group functions - Include or exclude grouped rows by using the HAVING clause - Group data by using the GROUP BY clause - Identify the available group functions
Manipulating Data	14%	- Describe each data manipulation language (DML) statement - Control transactions - Insert rows into a table - Delete rows from a table - Update rows in a table
Using DDL Statements to Create and Manage Tables	14%	- Describe the data types that are available for columns - Categorize the main database objects - Review the table structure - Alter table definitions - Create a simple table - Drop, rename, and truncate tables
Restricting and Sorting Data	6%	- Use ampersand substitution to restrict and sort output at runtime - Use DEFINE and UNDEFINE commands - Limit the rows that are retrieved by a query - Sort the rows that are retrieved by a query
Creating Other Schema Objects	10%	- Create synonyms for database objects - Create, modify, and retrieve data from a view - Create, maintain, and use sequences - Create and maintain indexes
Displaying Data from Multiple Tables Using Joins	15%	- Cross join tables - Join a table to itself by using a self-join - Write SELECT statements to access data from more than one table using equijoins and non-equijoins - View data that does not meet a join condition by using outer joins
Using Conversion Functions and Conditional Expressions	10%	- Apply the NVL, NULLIF, and COALESCE functions to data - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Use conditional IF THEN ELSE logic in a SELECT statement - Describe implicit and explicit data type conversion
Using Subqueries to Solve Queries	15%	- Define subqueries - List the types of subqueries - Write single-row and multi-row subqueries - Describe the types of problems that subqueries can solve
Controlling User Access	5%	- Distinguish between granting privileges and roles - Differentiate system privileges from object privileges - Grant privileges on tables and on a view

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Oracle Database SQL Sample Questions (Q293-Q298):

NEW QUESTION # 293
You own table DEPARTMENTS, referenced by views, indexes, and synonyms.
Examine this command which executes successfully:
DROP TABLE departments PURGE;
Which three statements are true?

A. It will delete all rows from the DEPARTMENTS table, but retain the empty table.
B. Neither can it be rolled back nor can the DEPARTMENTS table be recovered.
C. It will drop all indexes on the DEPARTMENTS table.
D. It will remove all synonyms for the DEPARTMENTS table.
E. It will remove all views that are based on the DEPARTMENTS table.
F. It will remove the DE PARTMENTS table from the database.

Answer: B,C,F

NEW QUESTION # 294
Table EMPLOYEES contains columns including EMPLOYEE_ID, JOB_ID and SALARY.
Only the EMPLOYEE_ID column is indexed.
Rows exist for employees 100 and 200.
Examine this statement:

Which two statements are true? (Choose two.)

A. Employees 100 and 200 will have the same JOB_ID as before the update command
B. Employee 200 will have JOB_ID set to the same value as the JOB_ID of employee 100
C. Employees 100 will have JOB_ID set to the same value as the JOB_ID of employee 200
D. Employees 100 and 200 will have the same SALARY as before the update command
E. Employee 200 will have SALARY set to the same value as the SALARY of employee 100
F. Employee 100 will have SALARY set to the same value as the SALARY of employee 200

Answer: C,F

NEW QUESTION # 295
Examine the description of the ORDERS table:

Which three statements execute successfully?

A. SELECT * FROM orders
MINUS
SELECT * FROM INVOICES ORDER BY 1
B. SELECE order _id, order _ date FRON orders
LNTERSECT
SELECT invoice_ id, invoice_ id, order_ date FROM orders
C. (SELECT * FROM orders
UNION ALL
SELECT* FROM invoices) ORDER BY order _id;
D. SELECT * FROM orders ORDER BY order_ id
UNION
SELECT * FROM invoices;
E. SELECT * FROM orders ORDER BY order_ id
INTERSEOT
SELECT * FROM invoices ORDER BY invoice_ id;
F. SELECT order_ id, order_ data FROM orders
UNION ALL
SELECT invoice_ id, invoice_ data FROM invoices ORDER BY order_ id;
G. SELECT order_ id, invoice_ data order_ date FROM orders
MINUS
SELECT invoice_ id, invoice_ data FROM invoices ORDER BY invoice_ id;

Answer: C,D,F

Explanation:
In Oracle SQL, set operations like UNION, UNION ALL, INTERSECT, and MINUS can be used to combine results from different queries:
Option A:
Combining results using UNION ALL followed by ORDER BY will execute successfully because UNION ALL allows duplicate rows and ORDER BY can be used to sort the combined result set.
Option E:
Similar to option A, UNION ALL combines all rows from the two selects and allows ordering of the results.
Option G:
UNION combines the results from two queries and removes duplicates, and ORDER BY can be used to sort the final result set.
Options B, C, D, and F are incorrect because:
Option B: You cannot intersect different columns (ORDER_ID with INVOICE_ID).
Option C: Incorrect column names and syntax with ORDER BY.
Option D: ORDER BY cannot be used before a set operator like INTERSECT.
Option F: ORDER BY cannot be used directly after a MINUS operator without wrapping the MINUS operation in a subquery.

NEW QUESTION # 296
View the exhibit and examine the description of the EMPLOYEES table. (Choose two.)

You executed this SQL statement:
SELECT first_name, department_id, salary
FROM employees
ORDER BY department_id, first_name, salary desc;
Which two statements are true regarding the result? (Choose two.)

A. The values in all columns would be returned in descending order.
B. The values in the SALARY column would be returned in descending order for all employees having the same value in the DEPARTMENT_ID and FIRST_NAME column.
C. The values in the FIRST_NAME column would be returned in descending order for all employees having the same value in the DEPARTMENT_ID column.
D. The values in the SALARY column would be returned in descending order for all employees having the same value in the DEPARTMENT_ID column.
E. The values in the FIRST_NAME column would be returned in ascending order for all employees having the same value in the DEPARTMENT_ID column.

Answer: B,E

NEW QUESTION # 297
Examine this description of the PRODUCTS table:

You successfully execute this command:

Which two statements execute without errors? (Choose two.)

Answer: B,C

NEW QUESTION # 298
......

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