Oracle Database SQL Certified Associate Sample Questions for 1Z0-071 Certification
- CertiMaan
- Oct 10, 2025
- 23 min read
Updated: Jun 3
The Oracle Database SQL Certified Associate Certification is an entry-level database certification designed for professionals who want to validate their SQL skills and foundational knowledge of relational database concepts. Offered by Oracle Corporation, this certification demonstrates your ability to write SQL queries, retrieve and manipulate data, create database objects, and work with core database structures used in modern enterprise applications.
SQL (Structured Query Language) remains one of the most important skills in today's technology landscape. Organizations across industries rely on Oracle databases to manage business-critical data, making SQL expertise valuable for database administrators, developers, data analysts, business intelligence professionals, and aspiring IT practitioners. The Oracle Database SQL Certified Associate Certification validates your understanding of SQL fundamentals, data retrieval techniques, joins, subqueries, functions, data manipulation language (DML), data definition language (DDL), and database security basics.
This certification is an excellent choice for students, fresh graduates, software developers, database professionals, data analysts, and anyone looking to build a strong foundation in database technologies. It serves as a stepping stone toward advanced Oracle certifications and database administration roles while helping candidates demonstrate practical SQL competency to employers.
On this page, you will find Oracle Database SQL Certified Associate Certification sample questions, exam preparation guidance, study recommendations, and exam-focused insights designed to support your certification journey. Practice questions play a critical role in preparation because they help reinforce SQL concepts, improve query-writing accuracy, identify knowledge gaps, and familiarize candidates with certification-style questions.
To maximize your chances of success, combine practice questions with hands-on SQL exercises, database lab work, and official Oracle learning resources. Consistent practice and real-world query development experience can significantly improve both exam performance and practical database skills.
Table of Contents
Oracle Database SQL Certified Associate Certification – Exam Details
Exam Detail | Information |
Certification | Oracle Database SQL Certified Associate Certification |
Provider | Oracle Corporation |
Exam Code | 1Z0-071 (Oracle Database SQL Certified Associate) |
Certification Level | Associate |
Exam Format | Multiple-Choice Questions |
Number of Questions | 63 Questions |
Exam Duration | 120 Minutes |
Passing Score | 63% |
Delivery Method | Online Proctored or Authorized Test Center |
Exam Language | English |
Technology Focus | Oracle SQL, Relational Databases, Data Retrieval, Data Manipulation |
Recommended Experience | Basic understanding of SQL and relational database concepts |
Difficulty Level | Beginner to Intermediate |
Certification Validity | Refer to Oracle's current certification policy |
Target Audience | Database Developers, Data Analysts, Students, SQL Developers, IT Professionals |
Key Skills Validated | SQL Queries, Joins, Subqueries, Functions, DML, DDL, Data Modeling, Data Management |
Typical Preparation Time | 4–8 Weeks (depending on prior SQL experience) |
How to Prepare for the Oracle Database SQL Certified Associate Certification
Preparing for the Oracle Database SQL Certified Associate Certification requires a combination of SQL theory, hands-on practice, and exam-focused revision. Since the certification validates your ability to work with Oracle SQL in real-world database environments, simply memorizing syntax is not enough. Candidates should focus on understanding how SQL commands interact with database objects and how queries solve business problems.
1. Master SQL Fundamentals
Start by building a strong foundation in core SQL concepts. Focus on:
SELECT statements
WHERE, ORDER BY, and GROUP BY clauses
Joins (INNER, OUTER, SELF, and CROSS)
Aggregate functions
Single-row functions
Multiple-row functions
Set operators
Subqueries
Views and sequences
Constraints and indexes
A clear understanding of these topics will help you answer both conceptual and scenario-based questions.
2. Practice SQL Daily
SQL is a practical skill that improves through repetition. Create sample databases and write queries regularly. Practice:
Retrieving data from multiple tables
Filtering and sorting records
Using nested subqueries
Creating tables and constraints
Manipulating data with INSERT, UPDATE, DELETE, and MERGE statements
The more queries you write, the more comfortable you will become during the exam.
3. Use Sample Questions and Mock Exams
Practice exams help you become familiar with the certification format and identify weak areas. After completing a mock test:
Review incorrect answers
Understand the underlying SQL concepts
Reattempt challenging questions
Track recurring mistakes
This process helps improve both accuracy and confidence.
4. Focus on Oracle-Specific Features
While SQL standards are universal, Oracle includes specific functions and database features that may appear in the exam. Pay special attention to:
Oracle SQL functions
Date and time functions
Data conversion functions
Data dictionary views
Schema objects
Privilege management basics
Understanding Oracle-specific syntax can prevent unnecessary mistakes during the exam.
5. Create a Structured Study Plan
A practical preparation schedule might look like:
Week 1–2: SQL fundamentals and data retrieval
Week 3–4: Joins, functions, and subqueries
Week 5–6: DDL, DML, views, sequences, and constraints
Week 7:Â Mock exams and weak area review
Week 8:Â Final revision and practice tests
6. Analyze Weak Areas Continuously
Don't spend all your time reviewing topics you already know. Instead:
Track low-scoring domains
Revisit difficult SQL concepts
Practice additional exercises
Focus on accuracy before speed
Candidates who consistently analyze and improve their weak areas typically perform better than those who only take repeated practice exams.
A balanced preparation strategy that combines concept learning, hands-on SQL practice, and regular mock testing is the most effective way to prepare for the Oracle Database SQL Certified Associate Certification.
Reviewed & Verified by CertiMaan Certification Support Team
This Oracle Database SQL Certified Associate Certification sample questions page has been carefully reviewed by the CertiMaan Certification Support Team to ensure accuracy, relevance, and alignment with the latest Oracle SQL certification objectives. The practice questions, preparation guidance, and exam-focused content presented on this page are designed to help certification candidates strengthen their SQL knowledge, improve database query skills, and prepare confidently for the certification exam.
Our review process focuses on validating technical accuracy, ensuring alignment with Oracle database concepts, and maintaining educational value for learners at different experience levels. We regularly evaluate certification topics against Oracle SQL fundamentals, relational database principles, data manipulation techniques, schema management concepts, and query optimization practices to provide trustworthy and exam-relevant preparation resources.
The content is intended to support candidates who are preparing for roles involving database development, data analysis, application support, database administration, and business reporting. While practice questions are valuable preparation tools, we encourage candidates to combine them with hands-on SQL practice, Oracle documentation, and real-world database exercises for the best learning outcomes.
Review Methodology
Our certification content review process includes:
Verification of SQL syntax and database concepts
Alignment with Oracle certification objectives
Evaluation of query-writing scenarios
Review of data retrieval and manipulation techniques
Validation of relational database terminology
Continuous content quality assessment
Examination of commonly tested certification topics
Topics Reviewed
SQL SELECT Statements
Joins and Subqueries
Single-Row and Multiple-Row Functions
Data Manipulation Language (DML)
Data Definition Language (DDL)
Database Objects and Constraints
Views, Sequences, and Indexes
Set Operators
Data Dictionary Concepts
Oracle Database Fundamentals
This review process helps ensure that the information provided remains educational, practical, and aligned with the skills expected from an Oracle Database SQL Certified Associate professional.
Career Benefits of Oracle Database SQL Certified Associate Certification
The Oracle Database SQL Certified Associate Certification is more than just an entry-level credential—it is a valuable validation of one of the most widely used technical skills in the IT industry. SQL serves as the foundation for working with relational databases, and organizations across finance, healthcare, retail, telecommunications, government, and technology sectors rely on professionals who can efficiently retrieve, manage, and analyze data.
One of the biggest advantages of earning this certification is skill validation. Employers often look for candidates who can demonstrate practical database knowledge rather than simply claiming familiarity with SQL. By achieving this certification, you show that you understand essential database concepts, SQL query development, data manipulation, table relationships, and Oracle database fundamentals.
Expanded Career Opportunities
The certification can help you qualify for a variety of technology and data-focused roles, including:
SQL Developer
Junior Database Administrator (DBA)
Database Support Analyst
Data Analyst
Business Intelligence Analyst
Application Support Engineer
Reporting Analyst
Data Operations Specialist
Software Developer
Technical Consultant
Many organizations use SQL daily for reporting, analytics, application development, and business operations, making SQL proficiency a highly transferable skill across industries.
Strong Foundation for Advanced Certifications
The Oracle Database SQL Certified Associate Certification also acts as a stepping stone toward more advanced Oracle database and cloud certifications. Once you develop confidence in SQL fundamentals, you can pursue specialized certifications in:
Oracle Database Administration
Oracle Cloud Infrastructure (OCI)
Database Performance Tuning
Data Engineering
Data Analytics
Data Warehousing
This progressive certification path can help professionals build deeper expertise and expand their career options over time.
Practical Workplace Benefits
The knowledge gained while preparing for this certification has immediate real-world value. Professionals learn how to:
Retrieve business-critical information from databases
Analyze and transform data efficiently
Create accurate reports and dashboards
Improve data quality and consistency
Support application and database teams
Troubleshoot database-related issues
These practical skills are valuable regardless of whether you work in software development, analytics, cloud computing, business intelligence, or database administration.
Industry Recognition
Because Oracle databases are widely deployed in enterprise environments, the Oracle Database SQL Certified Associate Certification is recognized globally as a credible indicator of SQL competency. For students, career changers, and early-career IT professionals, it provides a strong foundation that demonstrates commitment to professional development and database expertise.
40+ Oracle Database SQL Certified Associate Certification Exam Questions List :
1. Which statement is true regarding the INTERSECT operator?
A. It ignores NULL values
B. The number of columns and data types must be identical for all SELECT statements in the query
C. The names of columns in all SELECT statements must be identical
D. Reversing the order of the intersected tables the result
2. You need to create a table with the following column specifications: 1. Employee ID (numeric data type) for each employee 2. Employee Name (character data type) that stores the employee name 3. Hire date, which stores the date of joining the organization for each employee 4. Status (character data type), that contains the value 'ACTIVE' if no data is entered 5. Resume (character large object [CLOB] data type), which contains the resume submitted by the employee Which is the correct syntax to create this table?
A. CREATE TABLE EMP_1
(emp_id NUMBER(4),
emp_name VARCHAR2(25),
start_date DATE,
e_status VARCHAR2(10) DEFAULT 'ACTIVE',
resume CLOB(200));
B. CREATE TABLE 1_EMP
(emp_id NUMBER(4),
emp_name VARCHAR2(25),
start_date DATE,
emp_status VARCHAR2(10) DEFAULT 'ACTIVE',
resume CLOB);
C. CREATE TABLE EMP_1
(emp_id NUMBER(4),
emp_name VARCHAR2(25),
start_date DATE,
emp_status VARCHAR2(10) DEFAULT "ACTIVE",
resume CLOB);
D. CREATE TABLE EMP_1
3. Evaluate the following CREATE TABLE commands: CREATE TABLE orders (ord_no NUMBER(2) CONSTRAINT ord_pk PRIMARY KEY, ord_date DATE, cust_id NUMBER(4)); CREATE TABLE ord_items (ord_no NUMBER(2), item_no NUMBER(3), qty NUMBER(3) CHECK (qty BETWEEN 100 AND 200), expiry_date date CHECK (expiry_date > SYSDATE), CONSTRAINT it_pk PRIMARY KEY (ord_no,item_no), CONSTRAINT ord_fk FOREIGN KEY(ord_no) REFERENCES orders(ord_no)); The above command fails when executed. What could be the reason?
A. SYSDATE cannot be used with the CHECK constraint.
B. The BETWEEN clause cannot be used for the CHECK constraint.
C. The CHECK constraint cannot be placed on columns having the DATE data type.
D. ORD_NO and ITEM_NO cannot be used as a composite primary key because ORD_NO is also the FOREIGN KEY.
4. Which is the valid CREATE TABLE statement?
A. CREATE TABLE emp9$# (emp_no NUMBER(4));
B. CREATE TABLE 9emp$# (emp_no NUMBER(4));
C. CREATE TABLE emp*123 (emp_no NUMBER(4));
D. CREATE TABLE emp9$# (emp_no NUMBER(4), date DATE);
5. SLS is a private synonym for the SH.SALES table. The user SH issues the following command: DROP SYNONYM sls; Which statement is true regarding the above SQL statement?
A. Only the synonym would be dropped.
B. The synonym would be dropped and the corresponding table would become invalid.
C. The synonym would be dropped and the packages referring to the synonym would be dropped.
D. The synonym would be dropped and any PUBLIC synonym with the same name becomes invalid.
6. Which two statements are true regarding constraints? (Choose two.)
A. A foreign key cannot contain NULL values.
B. A column with the UNIQUE constraint can contain NULL values.
C. A constraint is enforced only for the INSERT operation on a table.
D. A constraint can be disabled even if the constraint column contains data.
E. All constraints can be defined at the column level as well as the table level.
7. Which statement is true regarding the default behavior of the ORDER BY clause?
A. In a character sort, the values are case-sensitive.
B. NULL values are not considered at all by the sort operation.
C. Only those columns that are specified in the SELECT list can be used in the ORDER BY clause.
D. Numeric values are displayed from the maximum to the minimum value if they have decimal positions.
8. Which two statements are true regarding constraints? (Choose two.)
A. A foreign key cannot contain NULL values.
B. The column with a UNIQUE constraint can store NULLS.
C. A constraint is enforced only for an INSERT operation on a table.
D. You can have more than one column in a table as part of a primary key.
9. Examine the structure and data in the PRICE_LIST table: Name Null? Type -------------- -------- ---------------- PROD_ID Â Â NOT NULL NUMBER(3) PROD_PRICE Â Â VARCHAR2(10) PROD_ID PROD_PRICE ------- ---------- 100 Â Â $234.55 101 Â Â $6,509.75Â Â Â Â 102 Â Â $1,234 You plan to give a discount of 25% on the product price and need to display the discount amount in the same format as the PROD_PRICE. Which SQL statement would give the required result?
A. SELECT TO_CHAR(prod_price* .25,'$99,999.99') FROM PRICE_LIST;
B. SELECT TO_CHAR(TO_NUMBER(prod_price)* .25,'$99,999.00') FROM PRICE_LIST;
C. SELECT TO_CHAR(TO_NUMBER(prod_price,'$99,999.99')* .25,'$99,999.00') FROM PRICE_LIST;
D. SELECT TO_NUMBER(TO_NUMBER(prod_price,'$99,999.99')* .25,'$99,999.00') FROM PRICE_LIST;
10. Which CREATE TABLE statement is valid?
A. CREATE TABLE ord_details(ord_no NUMBER(2) PRIMARY KEY,item_no NUMBER(3) PRIMARY KEY,ord_date DATE NOT NULL);
B. CREATE TABLE ord_details(ord_no NUMBER(2) UNIQUE, NOT NULL,item_no NUMBER(3),ord_date DATE DEFAULT SYSDATE NOT NULL);
C. CREATE TABLE ord_details(ord_no NUMBER(2) ,item_no NUMBER(3),ord_date DATE DEFAULT NOT NULL,CONSTRAINT ord_uq UNIQUE (ord_no),CONSTRAINT ord_pk PRIMARY KEY (ord_no));
D. CREATE TABLE ord_details(ord_no NUMBER(2),item_no NUMBER(3),ord_date DATE DEFAULT SYSDATE NOT NULL,CONSTRAINT ord_pk PRIMARY KEY (ord_no, item_no));
11. You need to produce a report where each customer's credit limit has been incremented by $1000. In the output, the customer's last name should have the heading Name and the incremented credit limit should be labeled New Credit Limit. The column headings should have only the first letter of each word in uppercase. Which statement would accomplish this requirement?
A. SELECT cust_last_name Name, cust_credit_limit + 1000"New Credit Limit"FROM customers;
B. SELECT cust_last_name AS Name, cust_credit_limit + 1000AS New Credit LimitFROM customers;
C. SELECT cust_last_name AS "Name", cust_credit_limit + 1000AS "New Credit Limit"FROM customers;
D. SELECT INITCAP(cust_last_name) "Name", cust_credit_limit + 1000INITCAP("NEW CREDIT LIMIT")FROM customers;
12. You want to create an ORD_DETAIL table to store details for an order placed having the following business requirement:Â 1) The order ID will be unique and cannot have null values. 2) The order date cannot have null values and the default should be the current date. 3) The order amount should not be less than 50. 4) The order status will have values either shipped or not shipped. 5) The order payment mode should be cheque, credit card, or cash on delivery (COD). Which is the valid DDL statement for creating the ORD_DETAIL table?
A. CREATE TABLE ord_details
(ord_id NUMBER(2) CONSTRAINT ord_id_nn NOT NULL,
ord_date DATE DEFAULT SYSDATE NOT NULL,
ord_amount NUMBER(5, 2) CONSTRAINT ord_amount_min
CHECK (ord_amount > 50),
ord_status VARCHAR2(15) CONSTRAINT ord_status_chk
CHECK (ord_status IN ('Shipped', 'Not Shipped')),
ord_pay_mode VARCHAR2(15) CONSTRAINT ord_pay_chk
CHECK (ord_pay_mode IN ('Cheque', 'Credit Card',
'Cash On Delivery')));
B. CREATE TABLE ord_details
(ord_id NUMBER(2) CONSTRAINT ord_id_uk UNIQUE NOT NULL, ord_date DATE DEFAULT SYSDATE NOT NULL, ord_amount NUMBER(5, 2) CONSTRAINT ord_amount_min
CHECK (ord_amount > 50),
ord_status VARCHAR2(15) CONSTRAINT ord_status_chk
CHECK (ord_status IN ('Shipped', 'Not Shipped')),
ord_pay_mode VARCHAR2(15) CONSTRAINT ord_pay_chk
CHECK (ord_pay_mode IN ('Cheque', 'Credit Card',
'Cash On Delivery')));
C. CREATE TABLE ord_details
(ord_id NUMBER(2) CONSTRAINT ord_id_pk PRIMARY KEY, ord_date DATE DEFAULT SYSDATE NOT NULL, ord_amount NUMBER(5, 2) CONSTRAINT ord_amount_min
CHECK (ord_amount >= 50),
ord_status VARCHAR2(15) CONSTRAINT ord_status_chk
CHECK (ord_status IN ('Shipped', 'Not Shipped')),
ord_pay_mode VARCHAR2(15) CONSTRAINT ord_pay_chk
CHECK (ord_pay_mode IN ('Cheque', 'Credit Card',
'Cash On Delivery')));
D. CREATE TABLE ord_details
13. Using the CUSTOMERS table, you need to generate a report that shows 50% of each credit amount in each income level. The report should NOT show any repeated credit amounts in each income level. Which query would give the required result?
A. SELECT cust_income_level, DISTINCT cust_credit_limit * 0.50 AS "50% Credit Limit" FROM customers;
B. SELECT DISTINCT cust_income_level, DISTINCT cust_credit_limit * 0.50 AS "50% Credit Limit" FROM customers;
C. SELECT DISTINCT cust_income_level || ' ' || cust_credit_limit * 0.50 AS "50% Credit Limit" FROM customers;
D. SELECT cust_income_level ||' '|| cust_credit_limit * 0.50 AS "50% Credit Limit"
14. You issued the following command to drop the PRODUCTS table: SQL> DROP TABLE products; What is the implication of this command? (Choose all that apply.)
A. All data along with the table structure is deleted.
B. The pending transaction in the session is committed.
C. All indexes on the table will remain but they are invalidated.
D. All views and synonyms will remain but they are invalidated.
E. All data in the table are deleted but the table structure will remain.
15. Evaluate the following query: SQL> SELECT promo_name || q'{'s start date was }' || promo_begin_date AS "Promotion Launches" FROM promotions; What would be the outcome of the above query?
A. It produces an error because flower braces have been used.
B. It produces an error because the data types are not matching.
C. It executes successfully and introduces an 's at the end of each promo_name in the output.
D. It executes successfully and displays the literal " {'s start date was } " for each row in the output.
16. Which two statements are true regarding views? (Choose two.)
A. A simple view in which column aliases have been used cannot be updated.
B. Rows cannot be deleted through a view if the view definition contains the DISTINCT keyword.
C. Rows added through a view are deleted from the table automatically when the view is dropped.
D. The OR REPLACE option is used to change the definition of an existing view without dropping and re-creating it.
E. The WITH CHECK OPTION constraint can be used in a view definition to restrict the columns displayed through the view.
17. Evaluate the following query: SELECT INTERVAL '300' MONTH, INTERVAL '54-2' YEAR TO MONTH, INTERVAL '11:12:10.1234567' HOUR TO SECOND FROM dual; What is the correct output of the above query?
A. +25-00 , +54-02, +00 11:12:10.123457
B. +00-300, +54-02, +00 11:12:10.123457
C. +25-00 , +00-650, +00 11:12:10.123457
D. +00-300 , +00-650, +00 11:12:10.123457
18. Which two statements are true regarding views? (Choose two.)
A. A subquery that defines a view cannot include the GROUP BY clause.
B. A view that is created with the subquery having the DISTINCT keyword can be updated.
C. A view that is created with the subquery having the pseudo column ROWNUM keyword cannot be updated.
D. A data manipulation language (DML) operation can be performed on a view that is created with the subquery having all the NOT NULL columns of a table.
19. Which three statements are true regarding the data types in Oracle Database 10g/11g? (Choose three.)
A. Only one LONG column can be used per table.
B. A TIMESTAMP data type column stores only time values with fractional seconds.
C. The BLOB data type column is used to store binary data in an operating system file.
D. The minimum column width that can be specified for a VARCHAR2 data type column is one.
E. The value for a CHAR data type column is blank-padded to the maximum defined column width.
20. Which two statements are true about sequences created in a single instance database? (Choose two.)
A. The numbers generated by a sequence can be used only for one table.
B. DELETE would remove a sequence from the database.
C. CURRVAL is used to refer to the last sequence number that has been generated.
D. When the MAXVALUE limit for a sequence is reached, you can increase the MAXVALUE limit by using the ALTER SEQUENCE statement. E. When a database instance shuts down abnormally, the sequence numbers that have been cached but not used would be available once again when the database instance is restarted.
Exam Tips for Oracle Database SQL Certified Associate Certification
Preparing for the Oracle Database SQL Certified Associate Certification is not just about learning SQL syntax—it is about developing the ability to apply SQL concepts accurately under exam conditions. The following tips can help improve your preparation strategy and increase your confidence on exam day.
1. Understand the Exam Objectives Thoroughly
Before beginning your preparation, review the official exam topics carefully. Make sure you understand the weight of each domain and focus your study efforts accordingly. Areas such as SQL queries, joins, functions, subqueries, DML statements, and database objects frequently appear throughout the exam.
Avoid skipping foundational topics, as advanced questions often build upon basic SQL concepts.
2. Focus on Hands-On SQL Practice
Reading SQL concepts alone is rarely sufficient. Create sample databases and practice writing queries regularly.
Work on:
SELECT statements
Filtering and sorting data
Aggregate functions
Table joins
Subqueries
INSERT, UPDATE, DELETE operations
Creating tables and constraints
The more real SQL queries you write, the easier it becomes to recognize correct solutions during the exam.
3. Use Practice Exams Strategically
Practice exams are most effective when used as learning tools rather than score-checking exercises.
After each mock test:
Review incorrect answers
Identify weak domains
Revisit related SQL concepts
Practice additional questions from those areas
Consistent analysis of mistakes helps improve long-term retention.
4. Strengthen Oracle SQL Functions
Many candidates lose marks because they are unfamiliar with Oracle-specific functions.
Pay extra attention to:
Character functions
Number functions
Date functions
Conversion functions
Conditional expressions
Understanding when and how these functions are used can help answer scenario-based questions more efficiently.
5. Manage Your Exam Time Wisely
During the exam:
Answer straightforward questions first.
Mark difficult questions for review.
Avoid spending excessive time on a single question.
Leave sufficient time for final review.
A structured approach helps reduce stress and improves overall accuracy.
6. Review Common Mistakes Before Exam Day
In the final days before the exam, focus on:
Join syntax errors
Subquery logic mistakes
Grouping and aggregation rules
Constraint definitions
SQL function usage
Reviewing these commonly tested areas can prevent avoidable errors.
7. Stay Calm and Trust Your Preparation
Exam anxiety can affect performance even when you know the material. Maintain a steady pace, read each question carefully, and eliminate incorrect options before selecting your answer.
Candidates who combine strong SQL fundamentals, regular hands-on practice, and consistent mock testing typically perform far better than those who rely solely on theoretical study.
With a disciplined preparation strategy and practical SQL experience, you can approach the Oracle Database SQL Certified Associate Certification exam with confidence and significantly improve your chances of success.
21. You must write a query that prompts users for column names and conditions every time it is executed. (Choose the best answer.) The user must be prompted only once for the table name. Which statement achieves those objectives?
A. SELECT &col1, '&col2'FROM &tableWHERE &&condition = '&cond';
B. SELECT &col1, &col2 FROM "&table"WHERE &condition =&cond;
C. SELECT &col1, &col2 FROM &&tableWHERE &condition = &cond;
D. SELECT &col1, &col2 FROM &&tableWHERE &condition = &&cond
22. Which statement is true about transactions?
A. A set of Data Manipulation Language (DML) statements executed in a sequence ending with a SAVEPOINT forms a single transaction.
B. Each Data Definition Language (DDL) statement executed forms a single transaction.
C. A set of DDL statements executed in a sequence ending with a COMMIT forms a single transaction.
D. A combination of DDL and DML statements executed in a sequence ending with a COMMIT forms a single transaction.
23. Which three statements are true regarding subqueries?
A. Multiple columns or expressions can be compared between the main query and subquery.
B. Subqueries can contain ORDER BY but not the GROUP BY clause.
C. Main query and subquery can get data from different tables.
D. Subqueries can contain GROUP BY and ORDER BY clauses. E. Main query and subquery must get data from the same tables.
E. Only one column or expression can be compared between the main query and subquery.
24. Which two statements are true regarding the EXISTS operator used in the correlated subqueries? (Choose two.)
A. The outer query stops evaluating the result set of the inner query when the first value is found.
B. It is used to test whether the values retrieved by the inner query exist in the result of the outer query.
C. It is used to test whether the values retrieved by the outer query exist in the result set of the inner query.
D. The outer query continues evaluating the result set of the inner query until all the values in the result set are processed.
25. You are designing the structure of a table in which two columns have the specifications: COMPONENT_ID – must be able to contain a maximum of 12 alphanumeric characters and uniquely identify the row EXECUTION_DATETIME – contains Century, Year, Month, Day, Hour, Minute, Second to the maximum precision and is used for calculations and comparisons between components. Which two options define the data types that satisfy these requirements most efficiently?
A. The EXECUTION_DATETIME must be of INTERVAL DAY TO SECOND data type.
B. The EXECUTION_DATETIME must be of TIMESTAMP data type.
C. The EXECUTION_DATETIME must be of DATE data type.
D. The COMPONENT_ID must be of ROWID data type.
E. The COMPONENT_ID must be of VARCHAR2 data type.
F. The COMPONENT_ID column must be of CHAR data type.
26. Which three tasks can be performed using SQL functions built into Oracle Database?
A. displaying a date in a nondefault format
B. finding the number of characters in an expression
C. substituting a character string in a text expression with a specified string
D. combining more than two columns or expressions into a single column in the output
27. Which two statements are true regarding the COUNT function?
A. A SELECT statement using the COUNT function with a DISTINCT keyword cannot have a WHERE clause.
B. COUNT (DISTINCT inv_amt) returns the number of rows excluding rows containing duplicates and NULL values in the INV_AMT column.
C. COUNT (cust_id) returns the number of rows including rows with duplicate customer IDs and NULL value in the CUST_ID column.
D. COUNT (*) returns the number of rows including duplicate rows and rows containing NULL value in any of the columns.
E. The COUNT function can be used only for CHAR, VARCHAR2, and NUMBER data types.
28. Evaluate the following statement. INSERT ALL WHEN order_total < 10000 THEN INTO small_orders WHEN order_total > 10000 AND order_total < 20000 THEN INTO medium_orders WHEN order_total > 200000 AND order_total < 20000 THEN INTO large_orders SELECT order_id, order_total, customer_id FROM orders; Which statement is true regarding the evaluation of rows returned by the subquery in the INSERT statement?
A. They are evaluated by all the three WHEN clauses regardless of the results of the evaluation of any other WHEN clause.
B. They are evaluated by the first WHEN claus
C. If the condition is true, then the row would be evaluated by the subsequent WHEN clauses.
D. They are evaluated by the first WHEN claus
E. If the condition is false, then the row would be evaluated by the subsequent WHEN clauses.
29. Evaluate this ALTER TABLE statement: (Choose the best answer.) ALTER TABLE orders SET UNUSED (order_date); Which statement is true?
A. After executing the ALTER TABLE command, a new column called ORDER_DATE can be added to the ORDERS table.
B. The ORDER_DATE column must be empty for the ALTER TABLE command to execute successfully.
C. ROLLBACK can be used to restore the ORDER_DATE column.
D. The DESCRIBE command would still display the ORDER_DATE column.
30. Which two statements are true regarding the SQL GROUP BY clause?
A. You can use a column alias in the GROUP BY clause.
B. Using the WHERE clause after the GROUP BY clause excludes rows after creating groups.
C. The GROUP BY clause is mandatory if you are using an aggregating function in the SELECT clause.
D. Using the WHERE clause before the GROUP BY clause excludes rows before creating groups.
E. If the SELECT clause has an aggregating function, then columns without an aggregating function in the SELECT clause should be included in the GROUP BY clause.
31. Which task can be performed by using a single Data Manipulation Language (DML) statement?
A. Removing all data only from a single column on which a primary key constraint is defined.
B. Removing all data from a single column on which a unique constraint is defined.
C. Adding a column with a default value while inserting a row into a table.
D. Adding a column constraint while inserting a row into a table.
32. Which three statements are true reading subquenes?
A. A Main query can have many subqueries.
B. A subquery can have more than one main query.
C. The subquery and main query must retrieve date from the same table.
D. The subquery and main query can retrieve data from different tables.
E. Only one column or expression can be compared between the subquery and main query.
F. Multiple columns or expressions can be compared between the subquery and main query.
33. You must display details of all users whose username contains the string 'ch_'. (Choose the best answer.) Which query generates the required output?
A. SELECT * FROM users Where user_name LIKE '%ch_';
B. SELECT * FROM usersWhere user_name LIKE '%ch_%'ESCAPE'%';
C. SELECT * FROM users Where user_name LIKE 'ch\_%' ESCAPE '_';
D. SELECT * FROM users Where user_name LIKE '%ch\_%' ESCAPE '\';
34. When does a transaction complete? (Choose all that apply.)
A. When a PL/SQL anonymous block is executed
B. When a DELETE statement is executed
C. When a data definition language statement is executed
D. When a TRUNCATE statement is executed after the pending transaction
E. When a ROLLBACK command is executed
35. Which two statements are true regarding constraints?
A. A foreign key column cannot contain null values.
B. A column with the UNIQUE constraint can contain null values.
C. A constraint is enforced only for INSERT operation on the table.
D. A constraint can be disabled even if the constraint column contains data.
36. Which statements are true? (Choose all that apply.)
A. The data dictionary is created and maintained by the database administrator.
B. The data dictionary views consists of joins of dictionary base tables and user-defined tables.
C. The usernames of all the users including the database administrators are stored in the data dictionary.
D. The USER_CONS_COLUMNS view should be queried to find the names of the columns to which a constraint applies.
E. Both USER_OBJECTS and CAT views provide the same information about all the objects that are owned by the user.
F. Views with the same name but different prefixes, such as DBA, ALL and USER, use the same base tables from the data dictionary.
37. You want to display 5 percent of the rows from the SALES table for products with the lowest AMOUNT_SOLD and also want to include the rows that have the same AMOUNT_SOLD even if this causes the output to exceed 5 percent of the rows. Which query will provide the required result?
A. SELECT prod_id, cust_id, amount_soldFROM salesORDER BY amount_soldFETCH FIRST 5 PERCENT ROWS WITH TIES;
B. SELECT prod_id, cust_id, amount_soldFROM salesORDER BY amount_soldFETCH FIRST 5 PERCENT ROWS ONLY WITH TIES;
C. SELECT prod_id, cust_id, amount_soldFROM salesORDER BY amount_soldFETCH FIRST 5 PERCENT ROWS WITH TIES ONLY;
D. SELECT prod_id, cust_id, amount_soldFROM salesORDER BY amount_soldFETCH FIRST 5 PERCENT ROWS ONLY;
38. Which two statements are true about CURRENT_TIMEITAMP?
A. The date is in the time zone of DBTIMEZONE.
B. The value varies depending on the setting of SESSIONTIMEZONE.
C. It returns the same date as CURRENT_DATE.
D. The time is in the time zone of DBTIMEZONE.
E. It returns a value of data type TIMESTAMP F- It always returns the same value as SYSTIMESTAMP
39. A subquery is called a single-row subquery when.
A. There is only one subquery in the outer query and the inner query returns one or more values
B. The inner query returns a single value to the outer query.
C. The inner query uses an aggregating function and returns one or more values.
D. The inner query returns one or more values and the outer query returns a single value.
40. Examine this Statement which returns the name of each employee and their manager, SELECT e.last name AS emp,,m.last_name AS mgr FROM employees e JOIN managers m ON e.manager_ id = m. employee_ id ORDER BY emp; You want to extend the query to include employees with no manager. What must you add before JOIN to do this?
A. CROSS
B. FULL OUTER
C. LEFT OUTER
D. RIGHT OUTER
Frequently Asked Questions ( FAQs ) – Oracle Database SQL Certified Associate Certification
1. What is the Oracle Database SQL Certified Associate certification?
It is a fThe Oracle Database SQL Certified Associate Certification is an entry-level Oracle credential that validates your ability to write SQL queries, retrieve and manipulate data, create database objects, and work with relational database concepts using Oracle Database technologies.oundational certification that validates SQL skills required to work with Oracle Database.
2. Who should take the Oracle Database SQL Certified Associate Certification?
This certification is ideal for aspiring database professionals, SQL developers, software developers, data analysts, business intelligence professionals, students, and IT professionals who want to demonstrate foundational SQL skills.
3. Is the Oracle Database SQL Certified Associate Certification difficult?
The certification is generally considered beginner to intermediate in difficulty. Candidates with hands-on SQL experience and a solid understanding of relational database concepts typically find the exam manageable with proper preparation.
4. What topics are covered in the Oracle Database SQL Certified Associate exam?
The exam covers SQL fundamentals, data retrieval, joins, subqueries, single-row and multiple-row functions, DML statements, DDL statements, views, sequences, constraints, set operators, and Oracle database concepts.
5. How long should I study for the Oracle Database SQL Certified Associate Certification?
Preparation time varies by experience level. Most candidates spend between four and eight weeks studying SQL concepts, practicing queries, and completing mock exams before taking the certification exam.
6. Are practice questions useful for Oracle Database SQL Certified Associate exam preparation?
Yes. Practice questions help reinforce SQL concepts, improve query analysis skills, identify weak areas, and familiarize candidates with the style and structure of certification exam questions.
7. Do I need programming experience to earn the Oracle Database SQL Certified Associate Certification?
No. Prior programming experience is not required. However, familiarity with databases, data structures, and basic technical concepts can help candidates learn SQL more efficiently.
8. What are the best study resources for Oracle Database SQL Certified Associate Certification?
The best resources include Oracle's official certification guide, Oracle Database SQL documentation, Oracle learning courses, hands-on SQL practice environments, and certification-focused practice exams.
9. Can the Oracle Database SQL Certified Associate Certification help my career?
Yes. The certification validates in-demand SQL skills and can support career opportunities in database development, data analysis, application support, reporting, and database administration roles.
10. What jobs can I pursue after earning the Oracle Database SQL Certified Associate Certification?
Common job roles include SQL Developer, Database Analyst, Junior Database Administrator, Reporting Analyst, Business Intelligence Analyst, Data Analyst, Application Support Engineer, and Database Support Specialist.
11. Is hands-on SQL practice necessary for passing the certification exam?
Yes. Hands-on SQL practice is one of the most important preparation activities because the exam tests your ability to apply SQL concepts and understand real-world database scenarios.
12. Does the Oracle Database SQL Certified Associate Certification expire?
Oracle certification policies may change over time. Candidates should review Oracle's current certification and recertification policies to determine the latest validity requirements for this credential.
13. What is the best strategy for passing the Oracle Database SQL Certified Associate exam?
A successful strategy combines learning SQL fundamentals, practicing queries daily, using mock exams, reviewing weak areas, studying Oracle-specific functions, and gaining hands-on experience with database operations.
14. How important are joins and subqueries in the Oracle Database SQL Certified Associate exam?
Joins and subqueries are among the most important exam topics. Candidates should understand how to retrieve data from multiple tables, use nested queries, and apply relational database concepts effectively.
15. Is the Oracle Database SQL Certified Associate Certification a good starting point for advanced Oracle certifications?
Yes. This certification provides a strong SQL foundation and serves as an excellent starting point for more advanced Oracle certifications in database administration, Oracle Cloud, data engineering, and database development.