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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: Using SET Operators | 5% | - Using ORDER BY with set operations - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators |
| Topic 3: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 4: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Topic 5: Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations - Transaction management and control |
| Topic 6: Controlling User Access | 5% | - System vs object privileges - Roles creation and privilege assignment - Granting privileges on tables |
| Topic 7: Using Functions | 25% | - Data type conversion: implicit and explicit - Character functions for string manipulation - ROUND, TRUNC, MOD functions - Restricting group results - Nested functions - Group functions and grouping data - NVL, NULLIF, COALESCE functions - Date arithmetic and date functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions |
| Topic 8: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage indexes - Create and manage sequences - Create and manage synonyms |
| Topic 9: DDL for Tables and Relationships | 15% | - TRUNCATE TABLE statement - Constraints management - Temporary and external tables - Views management - Table structure, columns, data types - CREATE TABLE statement - Drop columns, set unused columns |
| Topic 10: Retrieving and Sorting Data | 15% | - Using SELECT statement and column aliases - Limiting rows and substitution variables - Arithmetic expressions and NULL values - DEFINE and VERIFY commands - Sorting query results - Operator precedence rules - Operators, literals, DISTINCT keyword |
| Topic 11: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - Relationship between database and SQL - SQL SELECT clauses and ERD components |
>> 1Z1-171 Exam Questions Pdf <<
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NEW QUESTION # 27
Which data dictionary view provides information about all tables accessible to the current user?
Answer: A
NEW QUESTION # 28
What will the following SQL query do?
UPDATE employees
SET salary = salary * 1.1
WHERE department_id = 10;
Answer: C
NEW QUESTION # 29
What is the result of using the following SQL query?
SELECT 100 + NULL AS result;
Answer: B
NEW QUESTION # 30
Which command creates a new role in Oracle Database?
Answer: A
NEW QUESTION # 31
Which command is used to add a new column to an existing table?
Answer: A
NEW QUESTION # 32
......
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