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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Relational Database Concepts | 5% | - Relationship between database and SQL - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components |
| Topic 2: Controlling User Access | 5% | - System vs object privileges - Roles creation and privilege assignment - Granting privileges on tables |
| Topic 3: Using Functions | 25% | - Data type conversion: implicit and explicit - ROUND, TRUNC, MOD functions - Nested functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Group functions and grouping data - Date arithmetic and date functions - NVL, NULLIF, COALESCE functions - Restricting group results - Character functions for string manipulation |
| Topic 4: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage indexes - Create and manage synonyms - Create and manage sequences |
| Topic 5: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Topic 6: Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views - INTERVAL data types |
| Topic 7: DDL for Tables and Relationships | 15% | - Drop columns, set unused columns - Temporary and external tables - TRUNCATE TABLE statement - CREATE TABLE statement - Constraints management - Views management - Table structure, columns, data types |
| Topic 8: Using SET Operators | 5% | - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators - Matching SELECT statements |
| Topic 9: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 10: Retrieving and Sorting Data | 15% | - Operators, literals, DISTINCT keyword - Arithmetic expressions and NULL values - Using SELECT statement and column aliases - Sorting query results - Limiting rows and substitution variables - Operator precedence rules - DEFINE and VERIFY commands |
| Topic 11: 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:
Which of the following is true about foreign key constraints in SQL?
- A. They define a relationship between two tables.
- B. They ensure that a column only contains NULL values.
- C. They enforce the uniqueness of values in a column.
Correct Answer: A 🗳️
Which function returns the current system date and time in the database session's time zone?
- A. SYSDATE
- B. CURRENT_TIMESTAMP
- C. SYSTEM_TIME
- D. LOCAL_TIME
Correct Answer: B 🗳️
Which of the following can be achieved using a correlated subquery?
- A. Comparing each employee's salary to the average salary of their department
- B. Joining two tables without a common column
- C. Retrieving duplicate records from a single table
- D. Inserting data into a table
Correct Answer: A 🗳️
Which command revokes a user's privilege to update a table?
- A. REMOVE UPDATE ON table_name FROM user_name;
- B. DENY UPDATE ON table_name FROM user_name;
- C. REVOKE UPDATE ON table_name FROM user_name;
- D. DELETE UPDATE ON table_name FROM user_name;
Correct Answer: C 🗳️
Which data dictionary view provides information about all the columns in tables accessible to the current user?
- A. ALL of the above
- B. ALL_TAB_COLUMNS
- C. USER_COLUMNS
- D. DBA_TAB_COLUMNS
Correct Answer: A 🗳️
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