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Oracle 1Z0-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Retrieving and Sorting Data | 15% | - Operator precedence rules - DEFINE and VERIFY commands - Operators, literals, DISTINCT keyword - Sorting query results - Arithmetic expressions and NULL values - Limiting rows and substitution variables - Using SELECT statement and column aliases |
| Data Dictionary and Time Zones | 5% | - INTERVAL data types - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| DDL for Tables and Relationships | 15% | - Views management - Constraints management - Temporary and external tables - Table structure, columns, data types - CREATE TABLE statement - Drop columns, set unused columns - TRUNCATE TABLE statement |
| Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - Transaction management and control - INSERT, UPDATE, DELETE operations |
| Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations - Matching SELECT statements |
| Using Functions | 25% | - Nested functions - Character functions for string manipulation - Group functions and grouping data - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Data type conversion: implicit and explicit - NVL, NULLIF, COALESCE functions - ROUND, TRUNC, MOD functions - Restricting group results - Date arithmetic and date functions |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage indexes - Create and manage synonyms - Create and manage sequences |
| Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Relational Database Concepts | 5% | - SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects - Relationship between database and SQL |
| Controlling User Access | 5% | - Granting privileges on tables - Roles creation and privilege assignment - System vs object privileges |
| Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
Oracle Database 23ai SQL Associate Sample Questions:
Which of the following data dictionary views provides information about constraints on tables?
- A. DBA_CONSTRAINTS
- B. All of the above
- C. USER_CONSTRAINTS
- D. ALL_CONSTRAINTS
Correct Answer: B 🗳️
Which command creates a new role in Oracle Database?
- A. ADD ROLE role_name;
- B. CREATE ROLE role_name;
- C. CREATE NEW ROLE role_name;
Correct Answer: B 🗳️
Which of the following is an example of an object privilege?
- A. ALTER USER
- B. CREATE TABLE
- C. DROP DATABASE
- D. SELECT ON table_name
Correct Answer: D 🗳️
Which clause in a SQL SELECT statement is used to define the columns to be retrieved?
- A. WHERE
- B. GROUP BY
- C. SELECT
- D. FROM
Correct Answer: C 🗳️
What does the following query return?
SELECT department_id FROM departments
INTERSECT
SELECT department_id FROM employees;
- A. All department IDs from the departments table
- B. All department IDs from the employees table
- C. Department IDs that exist only in the employees table
- D. Department IDs that exist in both the departments and employees tables
Correct Answer: D 🗳️
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