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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Managing Tables with DML | 5% | - INSERT, UPDATE, DELETE operations - Transaction management and control - Multi-table INSERT and MERGE statements |
| Topic 2: Retrieving and Sorting Data | 15% | - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases - DEFINE and VERIFY commands - Arithmetic expressions and NULL values - Operator precedence rules - Sorting query results - Limiting rows and substitution variables |
| Topic 3: Using Functions | 25% | - Nested functions - Data type conversion: implicit and explicit - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Character functions for string manipulation - ROUND, TRUNC, MOD functions - Date arithmetic and date functions - Restricting group results - NVL, NULLIF, COALESCE functions - Group functions and grouping data |
| Topic 4: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage indexes - Create and manage synonyms |
| Topic 5: Using SET Operators | 5% | - Using ORDER BY with set operations - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators |
| Topic 6: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Topic 7: DDL for Tables and Relationships | 15% | - TRUNCATE TABLE statement - Views management - Constraints management - Drop columns, set unused columns - Temporary and external tables - CREATE TABLE statement - Table structure, columns, data types |
| Topic 8: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components - Relationship between database and SQL |
| Topic 9: Controlling User Access | 5% | - Granting privileges on tables - Roles creation and privilege assignment - System vs object privileges |
| Topic 10: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Topic 11: Data Dictionary and Time Zones | 5% | - Using data dictionary views - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
>> 1Z0-171 Certification Test Questions <<
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NEW QUESTION # 71
Which of the following SET operators combines results from two queries and removes duplicates?
Answer: B
NEW QUESTION # 72
The column data type is converted to a primary key.
Answer: C
NEW QUESTION # 73
Which command revokes a user's privilege to update a table?
Answer: A
NEW QUESTION # 74
What happens when a temporary table is created in Oracle Database?
Answer: A
NEW QUESTION # 75
What type of join does the following query perform?
SELECT *
FROM employees e, departments d
WHERE e.department_id = d.department_id;
Answer: D
NEW QUESTION # 76
......
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