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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: DDL for Tables and Relationships | 15% | - Constraints management - Views management - Table structure, columns, data types - CREATE TABLE statement - TRUNCATE TABLE statement - Drop columns, set unused columns - Temporary and external tables |
| Topic 2: Using Functions | 25% | - Restricting group results - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Character functions for string manipulation - Data type conversion: implicit and explicit - ROUND, TRUNC, MOD functions - Date arithmetic and date functions - Group functions and grouping data - NVL, NULLIF, COALESCE functions - Nested functions |
| Topic 3: Controlling User Access | 5% | - Granting privileges on tables - System vs object privileges - Roles creation and privilege assignment |
| Topic 4: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 5: Retrieving and Sorting Data | 15% | - Operator precedence rules - DEFINE and VERIFY commands - Sorting query results - Limiting rows and substitution variables - Arithmetic expressions and NULL values - Using SELECT statement and column aliases - Operators, literals, DISTINCT keyword |
| 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% | - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations - Matching SELECT statements |
| Topic 8: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Topic 9: Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - Transaction management and control - INSERT, UPDATE, DELETE operations |
| Topic 10: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
| Topic 11: Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views - INTERVAL data types |
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NEW QUESTION # 108
What does the INTERSECT operator do in SQL?
Answer: A
NEW QUESTION # 109
Which command is used to add a new column to an existing table?
Answer: A
NEW QUESTION # 110
The column data type is converted to a primary key.
Answer: D
NEW QUESTION # 111
Which of the following is a valid reason to create a synonym?
Answer: D
NEW QUESTION # 112
What happens when a temporary table is created in Oracle Database?
Answer: D
NEW QUESTION # 113
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