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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Using Joins | - Use equijoins and non-equijoins - Use outer joins (LEFT, RIGHT, FULL) - Use cross joins - Use self-joins |
| Using DML Statements | - Insert rows into a table - Control transactions - Update rows in a table - Delete rows from a table - Use the MERGE statement |
| Controlling User Access | - Differentiate system privileges from object privileges - Grant and revoke privileges - Create and manage roles |
| Using DDL Statements | - Create and manage indexes - Create and manage tables - Create and manage sequences - Create and manage views - Create and manage constraints |
| Using SELECT Statements | - Use the FETCH clause to limit rows returned - Use the ORDER BY clause to sort rows - Use the WHERE clause to restrict rows - Execute a basic SELECT statement |
| Using SQL Functions | - Use character, number, and date functions in SELECT statements - Use conversion functions |
| Using Subqueries | - Use single-row subqueries - Use correlated subqueries - Use multiple-row subqueries |
| Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
Oracle Database 23ai SQL Associate Sample Questions:
1. What will the following SQL query do?
UPDATE employees
SET salary = salary * 1.1
WHERE department_id = 10;
A) Increase the salary of employees in department 10 by 10%
B) Set the salary to 1.1 for employees in department 10
C) Decrease the salary of employees in department 10 by 10%
D) Increase the salary of all employees by 10%
2. What is the purpose of using external tables in Oracle Database?
A) To store backup copies of database tables
B) To manage data stored in external files using SQL
C) To create temporary tables for session-specific data
D) To improve the performance of complex queries
3. What does the following SQL statement do?
CREATE TABLE employees (
employee_id NUMBER PRIMARY KEY,
first_name VARCHAR2(50),
hire_date DATE NOT NULL
);
A) Creates a table with only VARCHAR2 and DATE columns
B) Creates a table with no constraints
C) Creates a table with a primary key and a NOT NULL constraint
D) Creates a temporary table
4. What is the purpose of a correlated subquery?
A) A subquery that depends on the result of another subquery
B) A subquery that can be used only with aggregate functions
C) A subquery that combines data from multiple tables
D) A subquery that references columns from the outer query
5. Which of the following is an example of an object privilege?
A) SELECT ON table_name
B) DROP DATABASE
C) CREATE TABLE
D) ALTER USER
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: B | Question # 3 Answer: C | Question # 4 Answer: D | Question # 5 Answer: A |
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