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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Using Functions | 25% | - Nested functions - Restricting group results - NVL, NULLIF, COALESCE functions - Character functions for string manipulation - ROUND, TRUNC, MOD functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Data type conversion: implicit and explicit - Date arithmetic and date functions - Group functions and grouping data |
| Controlling User Access | 5% | - Roles creation and privilege assignment - System vs object privileges - Granting privileges on tables |
| Data Dictionary and Time Zones | 5% | - INTERVAL data types - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Using SET Operators | 5% | - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations |
| Managing Tables with DML | 5% | - Transaction management and control - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations |
| Retrieving and Sorting Data | 15% | - Arithmetic expressions and NULL values - Operator precedence rules - Limiting rows and substitution variables - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases - Sorting query results - DEFINE and VERIFY commands |
| DDL for Tables and Relationships | 15% | - Views management - Drop columns, set unused columns - Constraints management - TRUNCATE TABLE statement - Temporary and external tables - CREATE TABLE statement - Table structure, columns, data types |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage indexes - Create and manage synonyms - Create and manage sequences |
| Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components - Relationship between database and SQL |
| Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
Oracle Database 23ai SQL Associate Sample Questions:
1. Which of the following is an example of an object privilege?
A) DROP DATABASE
B) ALTER USER
C) CREATE TABLE
D) SELECT ON table_name
2. Which command grants a user the ability to query data from a specific table?
A) ALLOW SELECT ON table_name TO user_name;
B) GRANT ALL ON table_name TO user_name;
C) GRANT SELECT ON table_name TO user_name;
D) ENABLE SELECT ON table_name TO user_name;
3. What will the following query return?
SELECT EXTRACT(YEAR FROM CURRENT_DATE) AS year FROM dual;
A) An error due to incorrect syntax
B) The current year in the database time zone
C) The full date in the session time zone
4. Which SQL function converts a string representation of a date into a date data type?
A) CONVERT_TO_DATE
B) DATE_CONVERT
C) CAST_TO_DATE
D) TO_DATE
5. What is the output of the following query?
SELECT CURRENT_DATE FROM dual;
A) The current date in the database time zone
B) The current date and time in UTC
C) The current date and time in the database time zone
D) The current date in the session time zone
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: C | Question # 3 Answer: B | Question # 4 Answer: D | Question # 5 Answer: D |
