👉 In computer science, a lookup is a process of finding or retrieving data from a database or other storage system based on a specified key. This can be done by iterating through a list of possible keys and checking each one against the target value to determine if it matches. For example, in a database, a look-up might involve querying rows for a specific customer ID and looking up their name. If the customer ID is found in the database, the name would be returned as the result. This process