Oracle 1Z1-171 : Oracle Database 23ai SQL Associate

1Z1-171 real exams

Exam Code: 1Z1-171

Exam Name: Oracle Database 23ai SQL Associate

Updated: Oct 07, 2026

Q & A: 111 Questions and Answers

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Oracle 1Z1-171 Exam Syllabus Topics:

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

Oracle Database 23ai SQL Associate Sample Questions:

Question #1

What is the purpose of using external tables in Oracle Database?

  • A. To create temporary tables for session-specific data
  • B. To improve the performance of complex queries
  • C. To store backup copies of database tables
  • D. To manage data stored in external files using SQL
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #2

What will the following SQL query return?
SELECT TRUNC(15.678, 2) AS truncated_value FROM dual;

  • A. 15.678
  • B. 15.6
  • C. 15.67
  • D. 15.68
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #3

Which of the following best describes a relational database?

  • A. A database that organizes data hierarchically
  • B. A database where all data is stored as key-value pairs
  • C. A database that uses a tabular structure with rows and columns to represent relationships between data entities
  • D. A flat file system with no defined relationships between data
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #4

Which clause in a SQL SELECT statement is used to define the columns to be retrieved?

  • A. GROUP BY
  • B. WHERE
  • C. FROM
  • D. SELECT
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #5

What is required for the queries combined by a SET operator to work correctly?

  • A. Both queries must include the WHERE clause.
  • B. The result sets must have the same number of columns and compatible data types.
  • C. The tables must be joined using a primary key.
  • D. Both queries must use the GROUP BY clause.
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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