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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 2: Using Functions | 25% | - Character functions for string manipulation - NVL, NULLIF, COALESCE functions - Date arithmetic and date functions - Group functions and grouping data - Data type conversion: implicit and explicit - Nested functions - Restricting group results - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - ROUND, TRUNC, MOD functions |
| Topic 3: Controlling User Access | 5% | - Roles creation and privilege assignment - Granting privileges on tables - System vs object privileges |
| Topic 4: Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations - Transaction management and control |
| Topic 5: DDL for Tables and Relationships | 15% | - Drop columns, set unused columns - CREATE TABLE statement - Constraints management - TRUNCATE TABLE statement - Views management - Table structure, columns, data types - Temporary and external tables |
| Topic 6: Relational Database Concepts | 5% | - Relationship between database and SQL - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components |
| Topic 7: Retrieving and Sorting Data | 15% | - Operators, literals, DISTINCT keyword - Operator precedence rules - Using SELECT statement and column aliases - Arithmetic expressions and NULL values - DEFINE and VERIFY commands - Sorting query results - Limiting rows and substitution variables |
| Topic 8: Data Dictionary and Time Zones | 5% | - Using data dictionary views - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Topic 9: Using SET Operators | 5% | - Using ORDER BY with set operations - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators |
| Topic 10: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Topic 11: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage sequences - Create and manage indexes |
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NEW QUESTION # 17
What does the NEXTVAL pseudocolumn do in SQL?
Answer: C
NEW QUESTION # 18
Which of the following is an example of an object privilege?
Answer: B
NEW QUESTION # 19
What is a role in Oracle Database?
Answer: B
NEW QUESTION # 20
What happens when the maximum value of a sequence is reached?
Answer: D
NEW QUESTION # 21
What does the COMMIT statement do in SQL?
Answer: B
NEW QUESTION # 22
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