(1) In the C, COBOL, and REXX languages, a token that specifies the type of action to be done on one or more terms. The four types of operators are concatenation, arithmetic, comparison, and logical.
(2) In an access plan for an SQL or XQuery statement, a token that specifies the type of action that must be performed on data or on the output from a table or an index when the access plan is executed.
(3) In Query Patroller, a person who has a subset of administrator authorities, as defined in his or her operator profile. See also profile.
(4) An enterprise search user who has the authority to observe, start, and stop collection-level processes.