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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Managing Tables with DML | 5% | - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements - Transaction management and control |
| Topic 2: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage synonyms - Create and manage indexes |
| Topic 3: DDL for Tables and Relationships | 15% | - Table structure, columns, data types - Views management - TRUNCATE TABLE statement - Drop columns, set unused columns - Temporary and external tables - Constraints management - CREATE TABLE statement |
| Topic 4: Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations - Matching SELECT statements |
| Topic 5: Controlling User Access | 5% | - System vs object privileges - Granting privileges on tables - Roles creation and privilege assignment |
| Topic 6: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 7: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - Relationship between database and SQL - 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: Retrieving and Sorting Data | 15% | - Operator precedence rules - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases - DEFINE and VERIFY commands - Limiting rows and substitution variables - Sorting query results - Arithmetic expressions and NULL values |
| Topic 10: Using Functions | 25% | - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Restricting group results - NVL, NULLIF, COALESCE functions - ROUND, TRUNC, MOD functions - Nested functions - Date arithmetic and date functions - Group functions and grouping data - Data type conversion: implicit and explicit - Character functions for string manipulation |
| Topic 11: Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types - Using data dictionary views |
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NEW QUESTION # 20
How is the LOCALTIMESTAMP function different from CURRENT_TIMESTAMP?
Answer: B
NEW QUESTION # 21
What is the output of the following query?
SELECT CURRENT_DATE FROM dual;
Answer: C
NEW QUESTION # 22
What is the result of the following SQL query?
SELECT COALESCE(NULL, 100, 200) AS result FROM dual;
Answer: A
NEW QUESTION # 23
Which of the following can be achieved using a correlated subquery?
Answer: C
NEW QUESTION # 24
Which command revokes a user's privilege to update a table?
Answer: B
NEW QUESTION # 25
......
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