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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: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
| Topic 3: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 4: Controlling User Access | 5% | - Roles creation and privilege assignment - Granting privileges on tables - System vs object privileges |
| Topic 5: DDL for Tables and Relationships | 15% | - Table structure, columns, data types - Temporary and external tables - Views management - TRUNCATE TABLE statement - Drop columns, set unused columns - Constraints management - CREATE TABLE statement |
| Topic 6: Using SET Operators | 5% | - Using ORDER BY with set operations - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators |
| Topic 7: Retrieving and Sorting Data | 15% | - Using SELECT statement and column aliases - DEFINE and VERIFY commands - Arithmetic expressions and NULL values - Limiting rows and substitution variables - Operators, literals, DISTINCT keyword - Sorting query results - Operator precedence rules |
| Topic 8: Relational Database Concepts | 5% | - Relationship between database and SQL - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components |
| Topic 9: Data Dictionary and Time Zones | 5% | - INTERVAL data types - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Topic 10: Using Functions | 25% | - Character functions for string manipulation - Data type conversion: implicit and explicit - Restricting group results - Group functions and grouping data - ROUND, TRUNC, MOD functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Date arithmetic and date functions - Nested functions - NVL, NULLIF, COALESCE functions |
| Topic 11: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
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NEW QUESTION # 61
Which component of an ERD (Entity-Relationship Diagram) represents the attributes of an entity?
Answer: C
NEW QUESTION # 62
What does the following query return?
SELECT ROUND(123.456, 1) AS rounded_value FROM dual;
Answer: D
NEW QUESTION # 63
How can a synonym benefit database design?
Answer: C
NEW QUESTION # 64
What does the EXISTS operator check in a subquery?
Answer: C
NEW QUESTION # 65
Which SQL function calculates the number of months between two dates?
Response:
Answer: B
NEW QUESTION # 66
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