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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Using SET Operators | 5% | - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators - Matching SELECT statements |
| Topic 2: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Topic 3: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Topic 4: Managing Tables with DML | 5% | - Transaction management and control - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements |
| Topic 5: DDL for Tables and Relationships | 15% | - Views management - Table structure, columns, data types - Temporary and external tables - TRUNCATE TABLE statement - CREATE TABLE statement - Drop columns, set unused columns - Constraints management |
| Topic 6: Controlling User Access | 5% | - Granting privileges on tables - Roles creation and privilege assignment - System vs object privileges |
| Topic 7: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - Relationship between database and SQL - SQL SELECT clauses and ERD components |
| Topic 8: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage sequences - Create and manage indexes |
| Topic 9: Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views - INTERVAL data types |
| Topic 10: Using Functions | 25% | - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Nested functions - ROUND, TRUNC, MOD functions - Group functions and grouping data - Data type conversion: implicit and explicit - NVL, NULLIF, COALESCE functions - Character functions for string manipulation - Restricting group results - Date arithmetic and date functions |
| Topic 11: Retrieving and Sorting Data | 15% | - Limiting rows and substitution variables - Using SELECT statement and column aliases - Operator precedence rules - Sorting query results - Arithmetic expressions and NULL values - DEFINE and VERIFY commands - Operators, literals, DISTINCT keyword |
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NEW QUESTION # 10
Which of the following is an example of an object privilege?
Answer: C
NEW QUESTION # 11
In a relational database, what is a foreign key?
Answer: D
NEW QUESTION # 12
Which command would drop an index from a table?
Answer: D
NEW QUESTION # 13
What will the following query result in?
SELECT e.employee_id, e.manager_id
FROM employees e
WHERE e.manager_id IS NOT NULL;
Answer: D
NEW QUESTION # 14
What happens when the TRUNCATE TABLE statement is executed?
Answer: B
NEW QUESTION # 15
......
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