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Oracle 1Z0-071 Dumps - Pass Oracle Database SQL Exam in 2026
The Oracle 1Z0-071 - Oracle Database SQL exam is part of the Oracle Database certification path and focuses on practical SQL skills for working with relational data. It is designed for candidates who want to prove their ability to query, manage, and secure data using Oracle SQL. This exam matters because it validates core database knowledge that is widely used in real-world Oracle environments. Strong performance on this exam shows that you can handle essential SQL tasks with confidence and accuracy.
| # | Exam Topics | Sub-Topics | Approximate Weightage (%) |
|---|---|---|---|
| 1 | Relational Database concepts | Tables and rows, primary and foreign keys, relationships, data integrity | 5% |
| 2 | Retrieving Data using the SQL SELECT Statement | Select syntax, column aliases, expressions, distinct rows, basic queries | 12% |
| 3 | Restricting and Sorting Data | WHERE clause, comparison operators, ORDER BY, row filtering, logical conditions | 10% |
| 4 | Using Single-Row Functions to Customize Output | Character functions, number functions, date functions, formatting output | 8% |
| 5 | Using Conversion Functions and Conditional Expressions | TO_CHAR, TO_DATE, implicit conversion, CASE expressions, NVL and related logic | 8% |
| 6 | Reporting Aggregated Data Using Group Functions | COUNT, SUM, AVG, MIN, MAX, GROUP BY, HAVING, aggregate reports | 10% |
| 7 | Displaying Data from Multiple Tables | Joins, equijoins, outer joins, self-joins, multi-table queries | 10% |
| 8 | Using Subqueries to Solve Queries | Single-row subqueries, multiple-row subqueries, correlated subqueries, nesting logic | 8% |
| 9 | Using SET Operators | UNION, UNION ALL, INTERSECT, MINUS, combining query results | 5% |
| 10 | Managing Tables using DML statements | INSERT, UPDATE, DELETE, MERGE, transaction-aware data changes | 8% |
| 11 | Managing Indexes Synonyms and Sequences | Index basics, synonyms usage, sequence creation, data access support objects | 5% |
| 12 | Use DDL to manage tables and their relationships | CREATE, ALTER, DROP, constraints, table design, relationship management | 8% |
| 13 | Managing Views | Create views, query views, update through views, view properties | 5% |
| 14 | Controlling User Access | Privileges, roles, object access, granting and revoking permissions | 3% |
| 15 | Managing Objects with Data Dictionary Views | Dictionary views, metadata lookup, object details, schema exploration | 3% |
| 16 | Managing Data in Different Time Zones | Time zone data types, current time functions, timestamp handling, conversions | 2% |
This exam tests more than memorization. Candidates must understand Oracle SQL syntax, read questions carefully, and apply practical database skills to solve query, DML, DDL, and security scenarios. It also checks your ability to work with joins, subqueries, aggregation, and data types with enough depth to answer exam-style problems accurately.
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Frequently Asked Questions
1. Who should take the Oracle 1Z0-071 exam?
This exam is for candidates pursuing Oracle Database certification who want to validate SQL knowledge and practical query skills.
2. Is the Oracle Database SQL exam difficult?
It can be challenging if you are new to Oracle SQL because it covers many core topics, including joins, subqueries, functions, and DML.
3. Can I pass 1Z0-071 with only braindumps?
Braindumps alone are not the best approach. You should use them with practice and review so you understand why the answers are correct.
4. Do I need hands-on Oracle SQL experience?
Hands-on experience is very helpful because the exam checks practical SQL usage, not just theory.
5. Are QA4Exam.com dumps enough to pass on the first attempt?
The Exam PDF and Online Practice Test are strong study tools, and when used properly they can help you prepare for a first-attempt pass.
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You get exam questions and answers in PDF format and an online practice test that simulates the exam experience.
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The questions for 1Z0-071 were last updated on Jun 1, 2026.
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Which three statements are true about single row functions?
Single-row functions in SQL operate on each row independently and can modify the returned value:
Option A: Incorrect. Single row functions can be used in multiple parts of a SELECT statement, including SELECT, WHERE, and ORDER BY clauses.
Option B: Incorrect. Single row functions can accept more than one argument, such as the CONCAT function, which can accept multiple string arguments.
Option C: Incorrect. They return one result for each row processed, not per table.
Option D: Correct. Single row functions can take various types of arguments including column names, literals, variables, and other expressions.
Option E: Correct. Functions can be nested within other functions, allowing complex expressions and calculations.
Option F: Correct. The data type of the result can differ from the arguments' data types, such as the SUBSTR function returning a VARCHAR2 even when used on a number after converting it to a string.
You create a table by using this command:
CREATE TABLE rate_list (rate NUMBER(6,2));
Which two are true about executing statements?
The behavior of data insertion into a table with a specific numeric format in Oracle Database 12c can be explained as follows:
A . INSERT INTO rate_list VALUES (-.9) inserts the value as -.9: This is correct. The value -.9 is within the precision defined by the table column (NUMBER(6,2)), where 6 is the total number of digits (including both sides of the decimal point), and 2 is the number of digits after the decimal point.
E . INSERT INTO rate_list VALUES (0.551) inserts the value as .55: Oracle rounds the number to the nearest value that fits the specified scale of 2. Thus, 0.551 rounds down to 0.55.
Oracle Database SQL Language Reference 12c, particularly sections on data types and numeric precision.
Which two are true about constraints?
A . False. Constraints are enforced during INSERT and UPDATE operations, and by the nature of their definition, they impact DELETE operations as well (in the case of referential constraints).
B . False. A column with a foreign key constraint can contain a NULL value unless it is also constrained to be NOT NULL.
C . False. Not all constraints can be defined at the column level. For example, some constraints such as FOREIGN KEY constraints are more commonly defined at the table level.
D . True. A constraint can be disabled regardless of whether the constrained column contains data. However, re-enabling the constraint requires that all data satisfy the constraint rules.
E . True. A column with a UNIQUE constraint can indeed contain a NULL value, as NULL is considered not equal to any value, including itself. This means that multiple rows with NULL values do not violate the UNIQUE constraint.
Examine the data in the ENPLOYEES table:
Which statement will compute the total annual compensation tor each employee
The correct statement for computing the total annual compensation for each employee is option C. This is because the monthly commission is a percentage of the monthly salary (indicated by the column name MONTHLY_COMMISSION_PCT). To calculate the annual compensation, we need to calculate the annual salary (which is monthly_salary * 12) and add the total annual commission to it.
Here's the breakdown of the correct statement, option C:
(monthly_salary * 12) computes the total salary for the year.
NVL(monthly_commission_pct, 0) replaces NULL values in the monthly_commission_pct column with 0, ensuring that the commission is only added if it exists.
(monthly_salary * 12 * NVL(monthly_commission_pct, 0)) computes the annual commission by first determining the monthly commission (which is a percentage of the monthly salary), and then multiplying it by 12 to get the annual commission.
Finally, (monthly_salary * 12) + (monthly_salary * 12 * NVL(monthly_commission_pct, 0)) adds the annual salary and the annual commission to get the total annual compensation.
The other options are incorrect:
Option A is incorrect because it adds the monthly_commission_pct directly to the monthly_salary, which does not consider that monthly_commission_pct is a percentage.
Option B is incorrect because it adds the commission percentage directly without first applying it to the monthly salary.
Option D is incorrect because it does not handle the NULL values in the commission column, which would result in a NULL total annual compensation whenever the monthly_comission_pct is NULL.
Which three privileges can be restricted to a subset of columns in a table?
B: True. The REFERENCES privilege can be granted on specific columns within a table. This is necessary when a user needs to define foreign key constraints that reference those particular columns.
C: True. The UPDATE privilege can be granted on specific columns, allowing users to update only designated columns within a table. This is useful for restricting write access to sensitive or critical data within a table.
F: True. The INSERT privilege can also be granted on specific columns, meaning a user can be permitted to insert data into only certain columns of a table. This helps in maintaining data integrity and controlling access to data fields based on user roles.
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