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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Controlling User Access | 5% | - Roles creation and privilege assignment - System vs object privileges - Granting privileges on tables |
| Topic 2: Data Dictionary and Time Zones | 5% | - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types |
| Topic 3: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 4: Retrieving and Sorting Data | 15% | - Limiting rows and substitution variables - Operator precedence rules - Sorting query results - Arithmetic expressions and NULL values - Using SELECT statement and column aliases - DEFINE and VERIFY commands - Operators, literals, DISTINCT keyword |
| Topic 5: Using Functions | 25% | - Nested functions - Restricting group results - NVL, NULLIF, COALESCE functions - Character functions for string manipulation - Date arithmetic and date functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Data type conversion: implicit and explicit - ROUND, TRUNC, MOD functions - Group functions and grouping data |
| Topic 6: Relational Database Concepts | 5% | - Relationship between database and SQL - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components |
| Topic 7: Using SET Operators | 5% | - Matching SELECT statements - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators |
| Topic 8: Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - Transaction management and control - INSERT, UPDATE, DELETE operations |
| Topic 9: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage synonyms - Create and manage indexes |
| Topic 10: DDL for Tables and Relationships | 15% | - Table structure, columns, data types - Views management - Constraints management - TRUNCATE TABLE statement - Temporary and external tables - CREATE TABLE statement - Drop columns, set unused columns |
| Topic 11: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
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NEW QUESTION # 103
Which SQL JOIN keyword retrieves all rows from both tables, including those without matches?
Answer: A
NEW QUESTION # 104
Which function is used to extract the year from a date in SQL?
Answer: D
NEW QUESTION # 105
Which clause can be used with SET operators to sort the final result set?
Answer: B
NEW QUESTION # 106
What is a role in Oracle Database?
Answer: C
NEW QUESTION # 107
The column data type is converted to a primary key.
Answer: C
NEW QUESTION # 108
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