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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Managing Tables with DML | 5% | - Transaction management and control - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements |
| Topic 2: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Topic 3: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 4: DDL for Tables and Relationships | 15% | - Constraints management - CREATE TABLE statement - Views management - Drop columns, set unused columns - TRUNCATE TABLE statement - Table structure, columns, data types - Temporary and external tables |
| Topic 5: Controlling User Access | 5% | - Roles creation and privilege assignment - Granting privileges on tables - System vs object privileges |
| Topic 6: Relational Database Concepts | 5% | - Relationship between database and SQL - SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects |
| Topic 7: Using SET Operators | 5% | - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations |
| Topic 8: Using Functions | 25% | - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Character functions for string manipulation - Date arithmetic and date functions - Restricting group results - Nested functions - ROUND, TRUNC, MOD functions - Data type conversion: implicit and explicit - NVL, NULLIF, COALESCE functions - Group functions and grouping data |
| Topic 9: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage sequences - Create and manage indexes |
| Topic 10: Data Dictionary and Time Zones | 5% | - Using data dictionary views - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Topic 11: Retrieving and Sorting Data | 15% | - Using SELECT statement and column aliases - Sorting query results - Operator precedence rules - Limiting rows and substitution variables - Arithmetic expressions and NULL values - Operators, literals, DISTINCT keyword - DEFINE and VERIFY commands |
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NEW QUESTION # 76
Which of the following is true about foreign key constraints in SQL?
Answer: A
NEW QUESTION # 77
How are NULL values treated in relational databases?
Answer: D
NEW QUESTION # 78
What is a role in Oracle Database?
Answer: D
NEW QUESTION # 79
Which statement can be used to undo changes made in a transaction?
Answer: B
NEW QUESTION # 80
What is the purpose of the SAVEPOINT statement?
Answer: C
NEW QUESTION # 81
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