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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Relational Database Concepts | 5% | - SQL SELECT clauses and ERD components - Relationship between database and SQL - Relational database theoretical and physical aspects |
| Topic 2: Using SET Operators | 5% | - Matching SELECT statements - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators |
| Topic 3: Using Functions | 25% | - Data type conversion: implicit and explicit - Character functions for string manipulation - ROUND, TRUNC, MOD functions - Restricting group results - NVL, NULLIF, COALESCE functions - Date arithmetic and date functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Group functions and grouping data - Nested functions |
| Topic 4: Managing Tables with DML | 5% | - Transaction management and control - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations |
| Topic 5: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 6: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage synonyms - Create and manage indexes |
| Topic 7: DDL for Tables and Relationships | 15% | - CREATE TABLE statement - Temporary and external tables - TRUNCATE TABLE statement - Views management - Drop columns, set unused columns - Constraints management - Table structure, columns, data types |
| Topic 8: Data Dictionary and Time Zones | 5% | - Using data dictionary views - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Topic 9: Retrieving and Sorting Data | 15% | - Using SELECT statement and column aliases - Limiting rows and substitution variables - Operator precedence rules - Arithmetic expressions and NULL values - Sorting query results - Operators, literals, DISTINCT keyword - DEFINE and VERIFY commands |
| Topic 10: Controlling User Access | 5% | - Granting privileges on tables - System vs object privileges - Roles creation and privilege assignment |
| Topic 11: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
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NEW QUESTION # 18
Which SQL keyword is used to remove duplicate rows from the result set of a query?
Answer: B
NEW QUESTION # 19
What happens when a temporary table is created in Oracle Database?
Answer: C
NEW QUESTION # 20
What is the difference between UNION and UNION ALL?
Answer: A
NEW QUESTION # 21
What is the relationship between SQL and a relational database?
Answer: D
NEW QUESTION # 22
Which of the following SQL commands retrieves data from a relational database?
Answer: A
NEW QUESTION # 23
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