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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: DDL for Tables and Relationships | 15% | - Constraints management - Views management - TRUNCATE TABLE statement - Drop columns, set unused columns - Temporary and external tables - CREATE TABLE statement - Table structure, columns, data types |
| Topic 2: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 3: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components - Relationship between database and SQL |
| Topic 4: Data Dictionary and Time Zones | 5% | - INTERVAL data types - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Topic 5: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Topic 6: Controlling User Access | 5% | - Granting privileges on tables - Roles creation and privilege assignment - System vs object privileges |
| Topic 7: Managing Tables with DML | 5% | - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements - Transaction management and control |
| Topic 8: Using SET Operators | 5% | - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations |
| Topic 9: Retrieving and Sorting Data | 15% | - Limiting rows and substitution variables - Arithmetic expressions and NULL values - Using SELECT statement and column aliases - Sorting query results - Operators, literals, DISTINCT keyword - Operator precedence rules - DEFINE and VERIFY commands |
| Topic 10: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
| Topic 11: Using Functions | 25% | - Group functions and grouping data - ROUND, TRUNC, MOD functions - Character functions for string manipulation - NVL, NULLIF, COALESCE functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Date arithmetic and date functions - Restricting group results - Nested functions - Data type conversion: implicit and explicit |
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NEW QUESTION # 25
Which of the following is a valid reason to create a synonym?
Answer: C
NEW QUESTION # 26
What does the following SQL query do?
SELECT * FROM employees WHERE salary > 5000 ORDER BY department_id;
Answer: A
NEW QUESTION # 27
What is a sequence in Oracle Database?
Answer: D
NEW QUESTION # 28
What is the purpose of using external tables in Oracle Database?
Answer: A
NEW QUESTION # 29
Which SQL statement is used to insert a new row into a table?
Answer: D
NEW QUESTION # 30
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