Although user characteristics influence MIS performance, little existing evidence indicates whether user characteristics influence performance in database querying tasks. This research maps out the results of a laboratory experiment in which participants generated SQL queries to retrieve information and satisfy typical information requirements. Prior to the experiment, demographic, personality, and cognitive style profiles of the participants were gathered, and these profiles were used to make the treatment groups as equal as possible. This research examined the influence of query complexity, experience, education, GPA, personality, and cognitive style on accuracy and efficiency of query formulation. The results revealed that as query complexity increased, performance declined. Participants with more experience, education, and higher GPAs, and those with intuitive-type and thinking-type cognitive styles performed queries more accurately and efficiently.