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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views - INTERVAL data types |
| Topic 2: DDL for Tables and Relationships | 15% | - Drop columns, set unused columns - Constraints management - CREATE TABLE statement - Temporary and external tables - TRUNCATE TABLE statement - Views management - Table structure, columns, data types |
| Topic 3: Controlling User Access | 5% | - Roles creation and privilege assignment - System vs object privileges - Granting privileges on tables |
| Topic 4: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
| Topic 5: Managing Tables with DML | 5% | - Transaction management and control - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements |
| Topic 6: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Topic 7: Using Functions | 25% | - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Date arithmetic and date functions - Restricting group results - NVL, NULLIF, COALESCE functions - Data type conversion: implicit and explicit - Nested functions - Group functions and grouping data - Character functions for string manipulation - ROUND, TRUNC, MOD functions |
| Topic 8: Using SET Operators | 5% | - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations |
| Topic 9: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - Relationship between database and SQL - SQL SELECT clauses and ERD components |
| Topic 10: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 11: Retrieving and Sorting Data | 15% | - DEFINE and VERIFY commands - Using SELECT statement and column aliases - Sorting query results - Operator precedence rules - Limiting rows and substitution variables - Operators, literals, DISTINCT keyword - Arithmetic expressions and NULL values |
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NEW QUESTION # 31
Which of the following is a valid reason to create a synonym?
Answer: B
NEW QUESTION # 32
Which command can be used to rename a table in Oracle Database?
Answer: C
NEW QUESTION # 33
What is the relationship between SQL and a relational database?
Answer: D
NEW QUESTION # 34
Which clause in an UPDATE statement typically uses a subquery to assign values to columns?
Answer: C
NEW QUESTION # 35
Which type of join includes rows that do not have matching values in the joined table?
Answer: B
NEW QUESTION # 36
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