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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Dictionary and Time Zones | 5% | - INTERVAL data types - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Topic 2: DDL for Tables and Relationships | 15% | - Table structure, columns, data types - CREATE TABLE statement - Drop columns, set unused columns - Views management - Constraints management - Temporary and external tables - TRUNCATE TABLE statement |
| Topic 3: Retrieving and Sorting Data | 15% | - Operator precedence rules - Arithmetic expressions and NULL values - DEFINE and VERIFY commands - Sorting query results - Limiting rows and substitution variables - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases |
| Topic 4: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Topic 5: Controlling User Access | 5% | - Granting privileges on tables - System vs object privileges - Roles creation and privilege assignment |
| Topic 6: Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Matching SELECT statements - Using ORDER BY with set operations |
| Topic 7: Relational Database Concepts | 5% | - Relationship between database and SQL - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components |
| Topic 8: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 9: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
| Topic 10: Managing Tables with DML | 5% | - Transaction management and control - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations |
| Topic 11: Using Functions | 25% | - NVL, NULLIF, COALESCE functions - Date arithmetic and date functions - Restricting group results - ROUND, TRUNC, MOD functions - Data type conversion: implicit and explicit - Group functions and grouping data - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Character functions for string manipulation - Nested functions |
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NEW QUESTION # 104
Which SQLPlus command displays defined substitution variable values?
Answer: C
NEW QUESTION # 105
What happens when the TRUNCATE TABLE statement is executed?
Answer: D
NEW QUESTION # 106
What is the primary purpose of granting privileges in Oracle Database?
Answer: D
NEW QUESTION # 107
Which command creates a new role in Oracle Database?
Answer: B
NEW QUESTION # 108
What does the following SQL query do?
SELECT *
FROM employees e
JOIN employees m ON e.manager_id = m.employee_id;
Answer: D
NEW QUESTION # 109
......
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