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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Using SELECT Statements | - Execute a basic SELECT statement - Use the FETCH clause to limit rows returned - Use the ORDER BY clause to sort rows - Use the WHERE clause to restrict rows |
| Using DDL Statements | - Create and manage views - Create and manage indexes - Create and manage constraints - Create and manage tables - Create and manage sequences |
| Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
| Controlling User Access | - Create and manage roles - Grant and revoke privileges - Differentiate system privileges from object privileges |
| Using SQL Functions | - Use conversion functions - Use character, number, and date functions in SELECT statements |
| Using Subqueries | - Use multiple-row subqueries - Use correlated subqueries - Use single-row subqueries |
| Using Joins | - Use outer joins (LEFT, RIGHT, FULL) - Use cross joins - Use equijoins and non-equijoins - Use self-joins |
| Using DML Statements | - Delete rows from a table - Update rows in a table - Use the MERGE statement - Control transactions - Insert rows into a table |
Oracle Database 23ai SQL Associate Sample Questions:
1. Which of the following SQL commands retrieves data from a relational database?
A) SELECT
B) DELETE
C) UPDATE
D) INSERT
2. What is the primary purpose of an index in SQL?
A) To improve the performance of data retrieval queries
B) To enforce data integrity constraints
C) To ensure uniqueness of values in a column
D) To store metadata about a table
3. What will the following query return?
SELECT TO_CHAR(SYSDATE, 'DD-MM-YYYY') AS formatted_date FROM dual;
A) An error
B) The current date in the default system format
C) The current date in the format 'DD-MM-YYYY'
D) The time part of the current date
4. Which command creates a new role in Oracle Database?
A) CREATE ROLE role_name;
B) CREATE NEW ROLE role_name;
C) ADD ROLE role_name;
5. Which of the following can be achieved using a correlated subquery?
A) Retrieving duplicate records from a single table
B) Comparing each employee's salary to the average salary of their department
C) Inserting data into a table
D) Joining two tables without a common column
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A | Question # 3 Answer: C | Question # 4 Answer: A | Question # 5 Answer: B |
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