Query languages are the tools that allow users to access meaningful sets of data in an interactive manner, independent of predefined reports produced by standard operations processes. As the importance of the information database becomes more critical to the success of the enterprise, so does the capability of a query language to locate, extract, and combine data into meaningful information for decision-making or avoidance of risk. Query languages typically are developed for a specific database, and the efficiency of the database engine and the query language need to be considered together.