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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Retrieving and Sorting Data | 15% | - Operator precedence rules - Arithmetic expressions and NULL values - DEFINE and VERIFY commands - Using SELECT statement and column aliases - Sorting query results - Limiting rows and substitution variables - Operators, literals, DISTINCT keyword |
| Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Using Functions | 25% | - Group functions and grouping data - ROUND, TRUNC, MOD functions - NVL, NULLIF, COALESCE functions - Date arithmetic and date functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Nested functions - Data type conversion: implicit and explicit - Restricting group results - Character functions for string manipulation |
| Relational Database Concepts | 5% | - Relationship between database and SQL - SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects |
| DDL for Tables and Relationships | 15% | - CREATE TABLE statement - Drop columns, set unused columns - Temporary and external tables - Constraints management - TRUNCATE TABLE statement - Table structure, columns, data types - Views management |
| Controlling User Access | 5% | - Roles creation and privilege assignment - Granting privileges on tables - System vs object privileges |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage indexes - Create and manage sequences - Create and manage synonyms |
| Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Data Dictionary and Time Zones | 5% | - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types |
| Using SET Operators | 5% | - Using ORDER BY with set operations - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators |
| Managing Tables with DML | 5% | - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements - Transaction management and control |
Oracle Database 23ai SQL Associate Sample Questions:
1. What does the following SQL query return?
SELECT employee_id, salary * 12 AS annual_salary FROM employees;
A) Only employees with salaries greater than 12
B) Employee IDs and their annual salaries
C) Monthly salaries of all employees
D) Salaries multiplied by 12 and stored in a new table
2. Which data dictionary view provides information about all the columns in tables accessible to the current user?
A) ALL of the above
B) DBA_TAB_COLUMNS
C) ALL_TAB_COLUMNS
D) USER_COLUMNS
3. Which data dictionary view lists all indexes created by the current user?
A) ALL_INDEXES
B) USER_INDEXES
C) DBA_INDEXES
D) INDEX_LIST
4. Which clause in a SQL SELECT statement is used to define the columns to be retrieved?
A) FROM
B) WHERE
C) SELECT
D) GROUP BY
5. Which SQL keyword is used to remove duplicate rows from the result set of a query?
A) UNIQUE
B) DISTINCT
C) ONLY
D) DISTINCTROW
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A | Question # 3 Answer: B | Question # 4 Answer: C | Question # 5 Answer: B |
Mark 
Clark 
May 
Tiffany 
Antony 
Leo 
Tess 
Dawn 
Adam 
Riva 
Osborn 
Nelly 
