Last Updated: Oct 08, 2026
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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - Relationship between database and SQL - SQL SELECT clauses and ERD components |
| Topic 2: Retrieving and Sorting Data | 15% | - Arithmetic expressions and NULL values - Limiting rows and substitution variables - Operator precedence rules - DEFINE and VERIFY commands - Using SELECT statement and column aliases - Sorting query results - Operators, literals, DISTINCT keyword |
| Topic 3: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 4: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
| Topic 5: Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types - Using data dictionary views |
| Topic 6: Using Functions | 25% | - Nested functions - Data type conversion: implicit and explicit - ROUND, TRUNC, MOD functions - Restricting group results - Character functions for string manipulation - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Group functions and grouping data - Date arithmetic and date functions - NVL, NULLIF, COALESCE functions |
| Topic 7: DDL for Tables and Relationships | 15% | - Views management - CREATE TABLE statement - Temporary and external tables - Table structure, columns, data types - Constraints management - TRUNCATE TABLE statement - Drop columns, set unused columns |
| Topic 8: Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations - Matching SELECT statements |
| Topic 9: Managing Tables with DML | 5% | - Transaction management and control - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements |
| Topic 10: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 11: Controlling User Access | 5% | - Granting privileges on tables - System vs object privileges - Roles creation and privilege assignment |
What is the primary purpose of an index in SQL?
Correct Answer: B 🗳️
Which command grants a user the ability to query data from a specific table?
Correct Answer: D 🗳️
Which clause can be used with SET operators to sort the final result set?
Correct Answer: C 🗳️
Which SQL statement is used to create a table?
Correct Answer: D 🗳️
What will the following query do?
SELECT employee_id, salary
FROM employees
WHERE salary > (SELECT AVG(salary) FROM employees);
Correct Answer: D 🗳️
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