Lekérdezéskor

Lekérdezéskor is a term that appears in certain programming contexts, particularly when dealing with databases or data retrieval. It directly translates from Hungarian to "when querying" or "during query." The term signifies the point in time when a request is made to retrieve specific data from a stored collection.

This phase is critical in the lifecycle of data interaction. When a user or a program initiates a lekérdezéskor, it involves formulating a query, which is a set of instructions specifying what data is desired and under what conditions. The database management system then processes this query, searching its records and returning the relevant information. The efficiency and accuracy of the lekérdezéskor directly impact the performance of applications that rely on data access.

Common operations during lekérdezéskor include filtering, sorting, joining, and aggregating data. For instance, a lekérdezéskor might be used to retrieve all customers from a specific city, sorted by their purchase history, or to calculate the total sales for a particular product category. The design of the query itself is paramount; poorly constructed queries can lead to slow response times or the retrieval of incorrect data. Therefore, understanding the principles of effective querying is essential for developers and data analysts.