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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage sequences - Create and manage indexes |
| Topic 2: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 3: Using Functions | 25% | - Data type conversion: implicit and explicit - Nested functions - Group functions and grouping data - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Restricting group results - Character functions for string manipulation - ROUND, TRUNC, MOD functions - NVL, NULLIF, COALESCE functions - Date arithmetic and date functions |
| Topic 4: Using SET Operators | 5% | - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations |
| Topic 5: Data Dictionary and Time Zones | 5% | - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views |
| 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% | - Arithmetic expressions and NULL values - Sorting query results - Operators, literals, DISTINCT keyword - Limiting rows and substitution variables - Using SELECT statement and column aliases - Operator precedence rules - DEFINE and VERIFY commands |
| Topic 8: DDL for Tables and Relationships | 15% | - Temporary and external tables - TRUNCATE TABLE statement - Views management - Table structure, columns, data types - Constraints management - CREATE TABLE statement - Drop columns, set unused columns |
| Topic 9: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 10: Controlling User Access | 5% | - Granting privileges on tables - System vs object privileges - Roles creation and privilege assignment |
| Topic 11: Managing Tables with DML | 5% | - Transaction management and control - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations |
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NEW QUESTION # 17
Which of the following statements creates an ascending sequence starting at 100 and incrementing by 10?
Answer: D
NEW QUESTION # 18
What is the purpose of the DBA_OBJECTS data dictionary view?
Answer: B
NEW QUESTION # 19
What happens when the maximum value of a sequence is reached?
Answer: A
NEW QUESTION # 20
Which component of an ERD (Entity-Relationship Diagram) represents the attributes of an entity?
Answer: D
NEW QUESTION # 21
Which type of join returns all rows from the left table, even if there are no matches in the right table?
Answer: B
NEW QUESTION # 22
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