The Oracle 1Z1-171 certification exam syllabus is changing with the passage of time. As a 1Z1-171 exam candidate you have to be aware of these Oracle 1Z1-171 exam changes. To give you complete knowledge about the Oracle 1Z1-171 Exam Topics, the Itcertmaster has hired a team of experts that consistently work on these changes and add these changes in Oracle 1Z1-171 exam practice test questions.
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 2: Relational Database Concepts | 5% | - Relationship between database and SQL - SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects |
| Topic 3: Using Functions | 25% | - Data type conversion: implicit and explicit - Group functions and grouping data - Nested functions - Character functions for string manipulation - ROUND, TRUNC, MOD functions - Restricting group results - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - NVL, NULLIF, COALESCE functions - Date arithmetic and date functions |
| Topic 4: Retrieving and Sorting Data | 15% | - Arithmetic expressions and NULL values - Operators, literals, DISTINCT keyword - Sorting query results - Operator precedence rules - DEFINE and VERIFY commands - Using SELECT statement and column aliases - Limiting rows and substitution variables |
| Topic 5: DDL for Tables and Relationships | 15% | - TRUNCATE TABLE statement - Drop columns, set unused columns - Temporary and external tables - CREATE TABLE statement - Constraints management - Views management - Table structure, columns, data types |
| Topic 6: Data Dictionary and Time Zones | 5% | - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views |
| Topic 7: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 8: Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations - Transaction management and control |
| Topic 9: Controlling User Access | 5% | - Granting privileges on tables - Roles creation and privilege assignment - System vs object privileges |
| Topic 10: Using SET Operators | 5% | - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators - Matching SELECT statements |
| Topic 11: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage indexes - Create and manage synonyms - Create and manage sequences |
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NEW QUESTION # 59
What does a Cartesian product in SQL result from?
Answer: B
NEW QUESTION # 60
Which type of subquery returns exactly one value?
Answer: C
NEW QUESTION # 61
Which SQL statement is used to insert a new row into a table?
Answer: D
NEW QUESTION # 62
Which SQL function can be used to replace NULL values with a specified value?
Answer: C
NEW QUESTION # 63
What will the following query result in?
SELECT e.employee_id, e.manager_id
FROM employees e
WHERE e.manager_id IS NOT NULL;
Answer: C
NEW QUESTION # 64
......
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