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Oracle 1Z0-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| 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 - Views management - Temporary and external tables - TRUNCATE TABLE statement - Drop columns, set unused columns - Table structure, columns, data types - Constraints management |
| Using Functions | 25% | - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Group functions and grouping data - Date arithmetic and date functions - Character functions for string manipulation - NVL, NULLIF, COALESCE functions - ROUND, TRUNC, MOD functions - Data type conversion: implicit and explicit - Restricting group results - Nested functions |
| Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage indexes - Create and manage sequences - Create and manage synonyms |
| Retrieving and Sorting Data | 15% | - Operator precedence rules - Operators, literals, DISTINCT keyword - Arithmetic expressions and NULL values - Using SELECT statement and column aliases - Limiting rows and substitution variables - DEFINE and VERIFY commands - Sorting query results |
| Controlling User Access | 5% | - Granting privileges on tables - Roles creation and privilege assignment - System vs object privileges |
| Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Managing Tables with DML | 5% | - Transaction management and control - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations |
| Data Dictionary and Time Zones | 5% | - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types |
| Using SET Operators | 5% | - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations |
Oracle Database 23ai SQL Associate Sample Questions:
1. Which command revokes a user's privilege to update a table?
A) DENY UPDATE ON table_name FROM user_name;
B) REMOVE UPDATE ON table_name FROM user_name;
C) DELETE UPDATE ON table_name FROM user_name;
D) REVOKE UPDATE ON table_name FROM user_name;
2. Which Oracle SQL function returns the current date and time, including time zone information?
A) NOW
B) SYSDATE
C) CURRENT_TIMESTAMP
D) CURRENT_DATE
3. What does the following command do?
GRANT CREATE SESSION TO user_name;
A) Allows the user to create database objects
B) Allows the user to create new sessions for other users
C) Assigns the user to a specific role
D) Grants the user the ability to connect to the database
4. Which of the following statements is true about constraints in Oracle Database?
A) Constraints cannot reference other tables.
B) Constraints can be added or modified using the ALTER TABLE statement.
C) Constraints can only be added when creating a table.
D) Constraints are automatically dropped when rows are deleted.
5. Which operator can be used in a multiple-row subquery to match a single value to a list of values?
A) IN
B) NOT NULL
C) =
D) EXISTS
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: C | Question # 3 Answer: D | Question # 4 Answer: B | Question # 5 Answer: A |
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