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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: Managing Tables with DML | 5% | - Transaction management and control - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements |
| Topic 3: Using SET Operators | 5% | - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations |
| Topic 4: Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types - Using data dictionary views |
| Topic 5: Relational Database Concepts | 5% | - SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects - Relationship between database and SQL |
| Topic 6: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 7: Controlling User Access | 5% | - Granting privileges on tables - System vs object privileges - Roles creation and privilege assignment |
| Topic 8: Retrieving and Sorting Data | 15% | - Arithmetic expressions and NULL values - DEFINE and VERIFY commands - Using SELECT statement and column aliases - Operators, literals, DISTINCT keyword - Operator precedence rules - Sorting query results - Limiting rows and substitution variables |
| Topic 9: Using Functions | 25% | - ROUND, TRUNC, MOD functions - Nested functions - Date arithmetic and date functions - Restricting group results - Group functions and grouping data - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Character functions for string manipulation - NVL, NULLIF, COALESCE functions - Data type conversion: implicit and explicit |
| Topic 10: DDL for Tables and Relationships | 15% | - Views management - CREATE TABLE statement - Constraints management - Temporary and external tables - Drop columns, set unused columns - TRUNCATE TABLE statement - Table structure, columns, data types |
| Topic 11: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
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NEW QUESTION # 95
Which command revokes a user's privilege to update a table?
Answer: B
NEW QUESTION # 96
What is the result of the following SQL query?
SELECT COALESCE(NULL, 100, 200) AS result FROM dual;
Answer: B
NEW QUESTION # 97
What does the INTERSECT operator do in SQL?
Answer: B
NEW QUESTION # 98
Which statement can be used to undo changes made in a transaction?
Answer: B
NEW QUESTION # 99
What is the purpose of using external tables in Oracle Database?
Answer: B
NEW QUESTION # 100
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