QUERYMASTER(ID:4561/que004)References: QUERYMASTER is the new query language for ICL's IDMS (and also conventional files) and is discussed in another paper. QUERY VIEWS are simplified structures set up within the subschema, so are more akin to MANAGE structures than to QLP or OLQ2 paths. However, unlike MANAGE, the CODASYL SET details are still available to the user. A user may still be able to put an 'independent items' query, but if this is ambiguous, or he wants to control the access path to be used, he has to specify a path within the query view by commands such as STARTING WITH, WITH Set-name, or linking conditions (for a relational-type join). in ACM SIGMOD Record 13(03) April 1983 view details |