Oracle 1Z0-171 Valid Test Papers | Test 1Z0-171 Questions Pdf

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Oracle 1Z0-171 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Using SET Operators	5%	- Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations
Topic 2: Using Subqueries	5%	- Correlated subqueries for update and delete - Single-row and multi-row subqueries
Topic 3: Displaying Data from Multiple Tables	10%	- Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products
Topic 4: Data Dictionary and Time Zones	5%	- Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types
Topic 5: Relational Database Concepts	5%	- SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects - Relationship between database and SQL
Topic 6: Controlling User Access	5%	- Roles creation and privilege assignment - System vs object privileges - Granting privileges on tables
Topic 7: DDL for Tables and Relationships	15%	- Views management - TRUNCATE TABLE statement - Temporary and external tables - Constraints management - CREATE TABLE statement - Drop columns, set unused columns - Table structure, columns, data types
Topic 8: Using Functions	25%	- Group functions and grouping data - NVL, NULLIF, COALESCE functions - Character functions for string manipulation - Nested functions - Data type conversion: implicit and explicit - ROUND, TRUNC, MOD functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Restricting group results - Date arithmetic and date functions
Topic 9: Retrieving and Sorting Data	15%	- Sorting query results - Limiting rows and substitution variables - Operator precedence rules - Arithmetic expressions and NULL values - Using SELECT statement and column aliases - Operators, literals, DISTINCT keyword - DEFINE and VERIFY commands
Topic 10: Managing Indexes, Synonyms, Sequences	5%	- Create and manage synonyms - Create and manage indexes - Create and manage sequences
Topic 11: Managing Tables with DML	5%	- Transaction management and control - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements

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Oracle Database 23ai SQL Associate Sample Questions (Q45-Q50):

NEW QUESTION # 45
The column data type is converted to a primary key.

A. CREATE INDEX
B. CREATE ALIAS
C. CREATE SYNONYM
D. CREATE SEQUENCE

Answer: C

NEW QUESTION # 46
What will the following query do?
DELETE FROM employees
WHERE department_id = 20;

A. Raise an error because DELETE cannot use a WHERE clause
B. Delete all rows where department_id is 20
C. Delete the department_id column in the employees table
D. Delete all rows in the employees table

Answer: B

NEW QUESTION # 47
Which command revokes a user's privilege to update a table?

A. REVOKE 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. DENY UPDATE ON table_name FROM user_name;

Answer: A

NEW QUESTION # 48
What does the INTERSECT operator do in SQL?

A. Combines rows from two queries and includes all duplicates
B. Returns rows from the first query that are not present in the second query
C. Combines all rows from two queries without any conditions
D. Returns rows that are present in both queries

Answer: D

NEW QUESTION # 49
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;

Answer: A

NEW QUESTION # 50
......

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