What is Query in Query? | Coldfusion interview questions

ColdFusion allows developers to reuse existing queries by running queries against them in memory. This gives you the advantage of being able to avoid the often costly performance hit of going back to the database to manipulate data that the application server has already recently called. A standard statement can be used to call a query variable in memory as though it were simply a table of data in an available data source. Query variables can even be joined, which provides interesting possibilities for joining data from disparate information sources.