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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 2: Controlling User Access | 5% | - System vs object privileges - Granting privileges on tables - Roles creation and privilege assignment |
| Topic 3: Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types - Using data dictionary views |
| Topic 4: Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations - Matching SELECT statements |
| Topic 5: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - Relationship between database and SQL - SQL SELECT clauses and ERD components |
| Topic 6: Using Functions | 25% | - Date arithmetic and date functions - Restricting group results - NVL, NULLIF, COALESCE functions - Data type conversion: implicit and explicit - Nested functions - ROUND, TRUNC, MOD functions - Character functions for string manipulation - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Group functions and grouping data |
| Topic 7: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Topic 8: Retrieving and Sorting Data | 15% | - Arithmetic expressions and NULL values - Sorting query results - Operator precedence rules - Using SELECT statement and column aliases - Operators, literals, DISTINCT keyword - Limiting rows and substitution variables - DEFINE and VERIFY commands |
| Topic 9: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
| Topic 10: DDL for Tables and Relationships | 15% | - CREATE TABLE statement - Views management - Constraints management - Temporary and external tables - Table structure, columns, data types - TRUNCATE TABLE statement - Drop columns, set unused columns |
| Topic 11: Managing Tables with DML | 5% | - Transaction management and control - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements |
Oracle Database 23ai SQL Associate Sample Questions:
1. Which type of join returns all rows from the left table, even if there are no matches in the right table?
A) RIGHT OUTER JOIN
B) FULL OUTER JOIN
C) LEFT OUTER JOIN
D) INNER JOIN
2. What is a role in Oracle Database?
A) A database object used to enforce constraints
B) A set of privileges that can be granted to users or other roles
C) A predefined SQL statement stored in the database
D) A user-defined function
3. Which of the following SET operators combines results from two queries and removes duplicates?
A) UNION ALL
B) INTERSECT
C) UNION
D) MINUS
4. What is the purpose of the SAVEPOINT statement?
A) To set a point within a transaction to which a rollback can occur
B) To restart a transaction
C) To delete data temporarily
D) To save changes permanently
5. How is the LOCALTIMESTAMP function different from CURRENT_TIMESTAMP?
A) LOCALTIMESTAMP returns only the date, while CURRENT_TIMESTAMP returns the date and time.
B) LOCALTIMESTAMP does not include fractional seconds, while CURRENT_TIMESTAMP does.
C) LOCALTIMESTAMP omits time zone information, while CURRENT_TIMESTAMP includes it.
D) Both functions are identical in output.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: B | Question # 3 Answer: C | Question # 4 Answer: A | Question # 5 Answer: C |
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