Oracle Database 23ai SQL Associate : 1Z0-171 test torrent

1Z0-171 Exam Simulator
  • Exam Code: 1Z0-171
  • Exam Name: Oracle Database 23ai SQL Associate
  • Updated: Oct 06, 2026
  • Q & A: 111 Questions and Answers

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Oracle 1Z0-171 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Using Subqueries5%- Correlated subqueries for update and delete
- Single-row and multi-row subqueries
Topic 2: Using SET Operators5%- UNION, UNION ALL, INTERSECT, MINUS operators
- Matching SELECT statements
- Using ORDER BY with set operations
Topic 3: Displaying Data from Multiple Tables10%- Different types of joins: equijoin, non-equijoin, outer join, self-join
- Cartesian products
Topic 4: Retrieving and Sorting Data15%- Arithmetic expressions and NULL values
- Operators, literals, DISTINCT keyword
- DEFINE and VERIFY commands
- Limiting rows and substitution variables
- Sorting query results
- Operator precedence rules
- Using SELECT statement and column aliases
Topic 5: Using Functions25%- ROUND, TRUNC, MOD functions
- Group functions and grouping data
- Restricting group results
- Nested functions
- Data type conversion: implicit and explicit
- TO_CHAR, TO_NUMBER, TO_DATE conversion functions
- Date arithmetic and date functions
- Character functions for string manipulation
- NVL, NULLIF, COALESCE functions
Topic 6: DDL for Tables and Relationships15%- Drop columns, set unused columns
- Constraints management
- Table structure, columns, data types
- CREATE TABLE statement
- TRUNCATE TABLE statement
- Temporary and external tables
- Views management
Topic 7: Controlling User Access5%- Roles creation and privilege assignment
- System vs object privileges
- Granting privileges on tables
Topic 8: Data Dictionary and Time Zones5%- CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP
- INTERVAL data types
- Using data dictionary views
Topic 9: Managing Indexes, Synonyms, Sequences5%- Create and manage sequences
- Create and manage indexes
- Create and manage synonyms
Topic 10: Relational Database Concepts5%- Relationship between database and SQL
- Relational database theoretical and physical aspects
- SQL SELECT clauses and ERD components
Topic 11: Managing Tables with DML5%- Multi-table INSERT and MERGE statements
- INSERT, UPDATE, DELETE operations
- Transaction management and control

Oracle Database 23ai SQL Associate Sample Questions:

Question #1

Which of the following statements is true about constraints in Oracle Database?

  • A. Constraints are automatically dropped when rows are deleted.
  • B. Constraints can be added or modified using the ALTER TABLE statement.
  • C. Constraints cannot reference other tables.
  • D. Constraints can only be added when creating a table.
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #2

What is the result of the following query?
SELECT employee_id
FROM employees
WHERE EXISTS (SELECT 1 FROM departments WHERE department_id = 10);

  • A. Employee IDs from departments with no employees
  • B. Employees with salaries greater than 10
  • C. All employee IDs
  • D. Employee IDs from department 10
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #3

What does the following SQL statement do?
CREATE TABLE employees (
employee_id NUMBER PRIMARY KEY,
first_name VARCHAR2(50),
hire_date DATE NOT NULL
);

  • A. Creates a temporary table
  • B. Creates a table with only VARCHAR2 and DATE columns
  • C. Creates a table with a primary key and a NOT NULL constraint
  • D. Creates a table with no constraints
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #4

What is the difference between UNION and UNION ALL?

  • A. UNION combines columns, while UNION ALL combines rows.
  • B. UNION removes duplicates, while UNION ALL includes all rows, including duplicates.
  • C. UNION includes all rows, while UNION ALL removes duplicates.
  • D. UNION works with subqueries, while UNION ALL does not.
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #5

What is the default order of evaluation when multiple SET operators are used in a query?

  • A. UNION, MINUS, INTERSECT
  • B. INTERSECT, UNION, MINUS
  • C. UNION, INTERSECT, MINUS
  • D. INTERSECT, MINUS, UNION
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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