Final answer:
DB lookups are used with databases and applications to retrieve information based on criteria. They enhance functionality and provide relevant information.
Step-by-step explanation:
DB lookups, also known as database lookups, are used with databases and applications. They are used to retrieve information from a database based on certain criteria. DB lookups are commonly used to perform searches, filter data, and connect related information.
DB lookups can be implemented in various ways, depending on the programming language and database management system being used. For example, in SQL (Structured Query Language), you can use the SELECT statement to perform a DB lookup and retrieve specific data from a database.
DB lookups can be incorporated into different applications to enhance functionality and provide users with relevant information. For instance, an e-commerce application might use DB lookups to retrieve product details based on user search queries or filter products based on certain criteria.