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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage synonyms - Create and manage indexes |
| Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations - Transaction management and control |
| Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views - INTERVAL data types |
| Retrieving and Sorting Data | 15% | - Operator precedence rules - Operators, literals, DISTINCT keyword - Sorting query results - Arithmetic expressions and NULL values - Using SELECT statement and column aliases - Limiting rows and substitution variables - DEFINE and VERIFY commands |
| Using Functions | 25% | - Date arithmetic and date functions - Restricting group results - Group functions and grouping data - Character functions for string manipulation - Data type conversion: implicit and explicit - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Nested functions - ROUND, TRUNC, MOD functions - NVL, NULLIF, COALESCE functions |
| Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Relational Database Concepts | 5% | - SQL SELECT clauses and ERD components - Relationship between database and SQL - Relational database theoretical and physical aspects |
| Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| DDL for Tables and Relationships | 15% | - CREATE TABLE statement - Drop columns, set unused columns - TRUNCATE TABLE statement - Temporary and external tables - Table structure, columns, data types - Views management - Constraints management |
| Controlling User Access | 5% | - System vs object privileges - Granting privileges on tables - Roles creation and privilege assignment |
| Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations - Matching SELECT statements |
Oracle Database 23ai SQL Associate Sample Questions:
1. What will the following query result in?
SELECT e.employee_id, e.manager_id
FROM employees e
WHERE e.manager_id IS NOT NULL;
A) Employees who have managers
B) Employees and their managers' IDs
C) Employees who do not have managers
D) All employees and their IDs
2. How can you ensure that data is sorted in descending order in a SQL query?
A) Use the DESC keyword
B) Use the DISTINCT keyword
C) Use the ORDER keyword
D) Use the ASC keyword
3. Which clause can be used with SET operators to sort the final result set?
A) HAVING
B) WHERE
C) GROUP BY
D) ORDER BY
4. What happens if a DELETE statement is executed without a WHERE clause?
A) All rows in the table are deleted.
B) No rows are deleted.
C) An error is raised.
D) Only the first row is deleted.
5. Which clause is used to allow a user to grant a privilege to others?
A) WITH GRANT OPTION
B) WITH SHARE OPTION
C) WITH ADMIN OPTION
D) WITH SELECT OPTION
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A | Question # 3 Answer: D | Question # 4 Answer: A | Question # 5 Answer: A |
Jo 
Steven 
Baird 
Webb 
Kent 
Dorothy 
Matthew 
Bruno 
Frederica 
Woodrow 
Tom 
Daisy 
Bella 
Hogan 
Elizabeth 
Freda 
