Google Data Analytics Professional Certification Practice Test

Which term describes a request for information from a database?

1. Observation

2. Query

3. Analysis

4. Data Mining

The correct answer is: Query

The term that describes a request for information from a database is "Query." In the context of databases, a query is essentially a way to retrieve specific data according to particular criteria specified by the user. This process may involve various functions, such as selecting certain fields, filtering rows based on conditions, or even joining multiple tables to gather comprehensive information. Queries are typically written in a structured query language (SQL) for relational databases, allowing users to manipulate and retrieve data efficiently and effectively. Understanding this concept is fundamental for anyone working with databases, as it serves as the primary mechanism to interact with and extract meaningful insights from data stored within. The other terms do not refer to the act of requesting information. "Observation" generally involves noting occurrences or events within the data without necessarily querying it. "Analysis" refers to the process of interpreting data to draw conclusions, which usually follows data retrieval. "Data Mining" is the practice of analyzing large datasets to find patterns or relationships, often employing complex methods beyond just querying, indicating a more extensive and analytical process.