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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Dictionary and Time Zones | 5% | - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types |
| Topic 2: Using SET Operators | 5% | - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators - Matching SELECT statements |
| Topic 3: Using Functions | 25% | - Restricting group results - Data type conversion: implicit and explicit - NVL, NULLIF, COALESCE functions - Group functions and grouping data - Character functions for string manipulation - Nested functions - Date arithmetic and date functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - ROUND, TRUNC, MOD functions |
| Topic 4: Controlling User Access | 5% | - Granting privileges on tables - Roles creation and privilege assignment - System vs object privileges |
| Topic 5: Retrieving and Sorting Data | 15% | - Sorting query results - DEFINE and VERIFY commands - Operator precedence rules - Operators, literals, DISTINCT keyword - Arithmetic expressions and NULL values - Limiting rows and substitution variables - Using SELECT statement and column aliases |
| Topic 6: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage sequences - Create and manage indexes |
| Topic 7: Relational Database Concepts | 5% | - Relationship between database and SQL - SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects |
| Topic 8: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Topic 9: DDL for Tables and Relationships | 15% | - Table structure, columns, data types - Views management - TRUNCATE TABLE statement - CREATE TABLE statement - Constraints management - Temporary and external tables - Drop columns, set unused columns |
| Topic 10: Managing Tables with DML | 5% | - Transaction management and control - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations |
| Topic 11: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
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NEW QUESTION # 77
Which SET operator returns rows from the first query that are not present in the second query?
Answer: A
NEW QUESTION # 78
Which SQL clause is used to specify the source table in a query?
Answer: A
NEW QUESTION # 79
Which of the following statements creates an ascending sequence starting at 100 and incrementing by 10?
Answer: B
NEW QUESTION # 80
What is the purpose of using external tables in Oracle Database?
Answer: B
NEW QUESTION # 81
What happens when the maximum value of a sequence is reached?
Answer: B
NEW QUESTION # 82
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