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Database Management Systems (DBMS)

Practice Database Management Systems (DBMS) MCQs for Pakistan exams (CSS, FPSC, PPSC, NTS) — 100 practice questions with answers and explanations.

The concept in which a subset of SQL commands used to define and modify database structures, such as CREATE and ALTER is best known as which of these terms?
Identify the correct definition of Data Definition Language (DDL).
What term describes the following? a subset of SQL commands used to manage data within tables, such as INSERT, UPDATE, and DELETE.
In computer science, Data Manipulation Language (DML) refers to which of the following?
Select the correct name for: a subset of SQL primarily represented by the SELECT statement, used to retrieve data from a database.
Which statement correctly explains Data Query Language (DQL)?
Which concept is defined as follows: a precompiled collection of SQL statements stored in a database that can be executed as a single unit?
What is Stored procedure primarily used for?
The following statement describes a specific concept. What is it called? a key formed by combining two or more columns to uniquely identify a row in a table.
Select the accurate description of Composite key.
Which term refers to a database property ensuring that relationships between tables remain consistent, typically enforced through foreign keys?
What does Referential integrity refer to?
What is the name for a set of techniques used in a DBMS to ensure correct results for concurrent transaction operations?
Which of the following best describes Concurrency control?
Identify the correct concept described as: a large, centralized repository of integrated data from multiple sources used for reporting and analysis.
Data warehouse is best defined as which of the following?
A type of database that organizes data into tables of rows and columns linked by defined relationships. What is this concept called?
Choose the correct description of Relational database.
Which of the following best names the concept in which a type of database designed for storing and retrieving unstructured or semi-structured data without a fixed table schema?
What is the function or purpose of NoSQL database?

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