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Oracle 1Z0-171 Exam Syllabus Topics:

Section	Objectives
Relational Database Concepts	- Database fundamentals and relational model 1. Tables, rows, columns, and keys 2. Entity relationships and normalization basics
Data Manipulation Language (DML)	- Insert, Update, Delete operations 1. Transaction control (COMMIT, ROLLBACK) 2. Data integrity considerations
Data Definition Language (DDL)	- Schema objects 1. Views and indexes 2. Tables and constraints
Retrieving Data Using SQL	- Joins and Subqueries 1. Inner and outer joins 2. Correlated and non-correlated subqueries - SELECT statements 1. Filtering with WHERE clause 2. Column selection and expressions 3. Sorting results with ORDER BY
Advanced SQL Features	- Set operators and functions 1. UNION, INTERSECT, MINUS 2. Single-row and group functions - Aggregations and grouping 1. Aggregate functions 2. GROUP BY and HAVING

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Oracle Database 23ai SQL Associate Sample Questions (Q83-Q88):

NEW QUESTION # 83
What is the purpose of the SAVEPOINT statement?

A. To save changes permanently
B. To delete data temporarily
C. To restart a transaction
D. To set a point within a transaction to which a rollback can occur

Answer: D

NEW QUESTION # 84
What is the purpose of the MERGE statement in SQL?

A. To delete duplicate rows from a table
B. To update existing rows or insert new rows in a target table
C. To combine the results of two queries
D. To join two tables into one

Answer: B

NEW QUESTION # 85
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 a primary key and a NOT NULL constraint
B. Creates a temporary table
C. Creates a table with no constraints
D. Creates a table with only VARCHAR2 and DATE columns

Answer: A

NEW QUESTION # 86
Which type of INSERT statement allows inserting rows into multiple tables using a single SELECT query?

A. Insert rows into a single table based on values in other tables
B. Insert rows into multiple tables simultaneously
C. Insert rows into a table only when a condition is met
D. Insert rows into multiple tables without conditions

Answer: B

NEW QUESTION # 87
How is the LOCALTIMESTAMP function different from CURRENT_TIMESTAMP?

A. LOCALTIMESTAMP omits time zone information, while CURRENT_TIMESTAMP includes it.
B. Both functions are identical in output.
C. LOCALTIMESTAMP returns only the date, while CURRENT_TIMESTAMP returns the date and time.
D. LOCALTIMESTAMP does not include fractional seconds, while CURRENT_TIMESTAMP does.

Answer: A

NEW QUESTION # 88
......

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