What do database (DB) querying and information retrieval imply for lin
guistics? What are data for the linguist? How can one envisage efficie
nt access to data? I propose that DB querying in language sciences be
designed linguistically and directly determined by linguistic data. Li
nguists from various backgrounds could then use a consensual query too
l. An implemented data-directed DB querying system, which was develope
d for research on French interrogative structures, is presented in det
ail.