What are some data validation techniques for external sources?
Data validation is the process of checking the quality, accuracy, and completeness of data before using it for a specific purpose. Data validation is especially important when dealing with external sources, such as user input, web services, APIs, or databases, that may contain errors, inconsistencies, or malicious content. In this article, you will learn about some common data validation techniques for external sources and how they can help you avoid data corruption, security breaches, or poor performance.