What does validation of a query help prevent during data retrieval?

Validation of a query serves a crucial role in ensuring that the data retrieved from a database is relevant and accurate. By validating a query before it is executed, the system checks that the data being requested is coherent and properly related to the elements within the dataset. This helps prevent the merging of unrelated data, which can occur if queries are poorly constructed or if there is a lack of clear parameters specifying how the data sets should interact.

When a query is not validated, it is possible for it to pull data from different sources that do not correlate, leading to confusion and misinterpretation of the results. This can diminish the integrity of the information received, making it difficult to draw accurate conclusions or insights. Thus, through query validation, the integrity of the dataset is maintained, ensuring that only related data sets are combined, which enhances the overall reliability and utility of the retrieved information.