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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations - Transaction management and control |
| Topic 2: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Topic 3: Controlling User Access | 5% | - Granting privileges on tables - System vs object privileges - Roles creation and privilege assignment |
| Topic 4: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - Relationship between database and SQL - SQL SELECT clauses and ERD components |
| Topic 5: Retrieving and Sorting Data | 15% | - Sorting query results - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases - Arithmetic expressions and NULL values - Limiting rows and substitution variables - Operator precedence rules - DEFINE and VERIFY commands |
| Topic 6: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage synonyms - Create and manage indexes |
| Topic 7: Data Dictionary and Time Zones | 5% | - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views |
| Topic 8: DDL for Tables and Relationships | 15% | - Table structure, columns, data types - CREATE TABLE statement - Temporary and external tables - Drop columns, set unused columns - Views management - TRUNCATE TABLE statement - Constraints management |
| Topic 9: Using Functions | 25% | - Character functions for string manipulation - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - ROUND, TRUNC, MOD functions - Nested functions - Data type conversion: implicit and explicit - Restricting group results - Date arithmetic and date functions - NVL, NULLIF, COALESCE functions - Group functions and grouping data |
| Topic 10: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 11: Using SET Operators | 5% | - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators - Matching SELECT statements |
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NEW QUESTION # 23
What is a role in Oracle Database?
Answer: D
NEW QUESTION # 24
What does the following SQL statement do?
SELECT e.employee_id, d.department_name
FROM employees e
JOIN departments d ON e.department_id = d.department_id;
Answer: C
NEW QUESTION # 25
Which SQL JOIN keyword retrieves all rows from both tables, including those without matches?
Answer: D
NEW QUESTION # 26
What does the COMMIT statement do in SQL?
Answer: B
NEW QUESTION # 27
How can a synonym benefit database design?
Answer: A
NEW QUESTION # 28
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