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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Using SET Operators | 5% | - Matching SELECT statements - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators |
| Topic 2: Retrieving and Sorting Data | 15% | - Operator precedence rules - Limiting rows and substitution variables - Sorting query results - Operators, literals, DISTINCT keyword - DEFINE and VERIFY commands - Arithmetic expressions and NULL values - Using SELECT statement and column aliases |
| Topic 3: DDL for Tables and Relationships | 15% | - CREATE TABLE statement - Views management - Drop columns, set unused columns - Temporary and external tables - TRUNCATE TABLE statement - Table structure, columns, data types - Constraints management |
| Topic 4: Data Dictionary and Time Zones | 5% | - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types |
| Topic 5: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Topic 6: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage synonyms - Create and manage indexes |
| Topic 7: Controlling User Access | 5% | - Granting privileges on tables - System vs object privileges - Roles creation and privilege assignment |
| Topic 8: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 9: Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - Transaction management and control - INSERT, UPDATE, DELETE operations |
| Topic 10: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - Relationship between database and SQL - SQL SELECT clauses and ERD components |
| Topic 11: Using Functions | 25% | - Date arithmetic and date functions - Data type conversion: implicit and explicit - ROUND, TRUNC, MOD functions - Nested functions - NVL, NULLIF, COALESCE functions - Group functions and grouping data - Restricting group results - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Character functions for string manipulation |
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NEW QUESTION # 12
Which SQL JOIN keyword retrieves all rows from both tables, including those without matches?
Answer: C
NEW QUESTION # 13
Which type of INSERT statement allows inserting rows into multiple tables using a single SELECT query?
Answer: C
NEW QUESTION # 14
How can you ensure that data is sorted in descending order in a SQL query?
Answer: A
NEW QUESTION # 15
Which of the following statements creates an ascending sequence starting at 100 and incrementing by 10?
Answer: B
NEW QUESTION # 16
What happens when a temporary table is created in Oracle Database?
Answer: A
NEW QUESTION # 17
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