Industry requirements rise every year, and certified skills rise with them. The Oracle Database 12c: SQL Fundamentals is a meaningful boost to your career, and PracticeVCE's 1z1-061 bank — 340 expert-verified practice questions — is built to help you earn it in 2026.
Oracle 1z1-061 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Retrieving Data Using the SQL SELECT Statement | 15% | - Capabilities of SELECT statements - Executing basic SELECT queries |
| Using Subqueries | 8% | - Nesting subqueries - Single-row and multi-row subqueries |
| Displaying Data from Multiple Tables | 10% | - Using different types of joins - Joining tables using SQL:1999 syntax |
| Conversion Functions and Conditional Expressions | 15% | - TO_CHAR, TO_NUMBER, TO_DATE conversions - CASE, DECODE and conditional logic |
| Using Single-Row Functions | 20% | - Manipulating data values - Character, number, and date functions |
| Restricting and Sorting Data | 15% | - Sorting results with ORDER BY - Limiting rows with WHERE clause - Using substitution variables |
| Managing Data and Schema Objects | 7% | - DML operations: INSERT, UPDATE, DELETE - Constraints and schema objects - Basic DDL: CREATE, ALTER, DROP tables |
| Aggregated Data with Group Functions | 10% | - Filtering groups with HAVING clause - AVG, SUM, MAX, MIN, COUNT functions - Grouping results with GROUP BY |
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The Oracle Database 12c: SQL Fundamentals blueprint centers on these domains:
- Using Subqueries (8%)
- Displaying Data from Multiple Tables (10%)
- Using Single-Row Functions (20%)
Additional domains complete the official outline, and our bank covers every one.
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Oracle states the following prerequisites for the Oracle Database 12c: SQL Fundamentals: No required prerequisites; basic knowledge of relational databases and SQL recommended.
For the authoritative details, see the official certification page.
Oracle recommends these official training resources:
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According to the latest exam information, the 1z1-061 exam contains 75 questions and lasts 120 minutes minutes. Simulating those conditions at home with the PC test engine is excellent preparation for the real environment.
Oracle Database 12c: SQL Fundamentals Sample Questions:
Examine the structure of the EMPLOYEES table:
EMPLOYEE_ID NUMBER Primary Key
FIRST_NAME VARCHAR2(25)
LAST_NAME VARCHAR2(25)
Which three statements insert a row into the table? (Choose three.)
- A. INSERT INTO employees (first_name, last_name, employee_id) VALUES ( 1000, 'John', 'Smith');
- B. INSERT INTO employees VALUES ( NULL, 'John', 'Smith');
- C. INSERT INTO employees (employee_id) VALUES (1000);
- D. INSERT INTO employees (employee_id, first_name, last_name) VALUES ( 1000, 'John', '');
- E. INSERT INTO employees VALUES ( 1000, 'John', NULL);
- F. INSERT INTO employees( first_name, last_name) VALUES( 'John', 'Smith');
Correct Answer: C,D,E 🗳️
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Which two statements are true regarding the count function?
- A. Count (*) returns the number of rows including duplicate rows and rows containing null value in any of the columns.
- B. A select statement using the COUNT function with a DISTINCT keyword cannot have a where clause.
- C. The count function can be used only for CHAR, VARCHAR2, and NUMBER data types.
- D. Count (cust_id) returns the number of rows including rows with duplicate customer IDs and NULL value in the CUST_ID column.
- E. Count (distinct inv_amt) returns the number of rows excluding rows containing duplicates and NULL values in the INV_AMT column.
Correct Answer: A,E 🗳️
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Examine the structure of the EMPLOYEES and NEW_EMPLOYEES tables:
Which DELETE statement is valid?
- A. DELETE FROM employeesWHERE employee_id IN (SELECT employee_id . FROM new_employees . WHERE name = 'Carrey');
- B. DELETE FROM employeesWHERE employee_id = (SELECT employee_id FROM
employees); - C. DELETE * FROM employeesWHERE employee_id IN (SELECT employee_id . FROM new_employees . WHERE name = 'Carrey');
- D. DELETE * FROM employeesWHERE employee_id=(SELECT employee_id FROM
new_employees);
Correct Answer: A 🗳️
View the Exhibit and examine the structure of the PROMOTIONS table:
Exhibit:
Using the PROMOTIONS table, you need to find out the average cost for all promos in the range $0-2000 and $2000-5000 in category A.
You issue the following SQL statements:
What would be the outcome?
- A. It executes successfully and gives the required result
- B. It generates an error because multiple conditions cannot be specified for the WHEN clause
- C. It generates an error because CASE cannot be used with group functions
- D. It generates an error because NULL cannot be specified as a return value
Correct Answer: A 🗳️
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The following parameter are set for your Oracle 12c database instance:
OPTIMIZER_CAPTURE_SQL_PLAN_BASELINES=FALSE
OPTIMIZER_USE_SQL_PLAN_BASELINES=TRUE
You want to manage the SQL plan evolution task manually. Examine the following steps:
1. Set the evolve task parameters.
2. Create the evolve task by using the DBMS_SPM.CREATE_EVOLVE_TASK function.
3. Implement the recommendations in the task by using the
DBMS_SPM.IMPLEMENT_EVOLVE_TASK function.
4 . Execute the evolve task by using the DBMS_SPM.EXECUTE_EVOLVE_TASK function.
5 . Report the task outcome by using the DBMS_SPM.REPORT_EVOLVE_TASK function.
Identify the correct sequence of steps:
- A. 1, 2, 4, 5
- B. 2, 4, 5
- C. 1, 2, 3, 4, 5
- D. 2, 1, 4, 3, 5
Correct Answer: D 🗳️
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