''This term is illustrated by the following examples:'' ---- A conversation in a Question and Answer forum: * http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:1133611000346070688 Others identify this method as a curse: * http://www.gplivna.eu/papers/gapless_sequences.htm To generate unduplicated PrimaryKey''''''s: * http://forums.oracle.com/forums/thread.jspa?threadID=965534 ** note: also can be used as in the threadID for forums, as 965534 is used above Organization and relationships in O''''''ptimizationAndSystemsBiology which might be used to organize a body of thought: * http://www.aporc.org/LNOR/9/OSB2008F30.pdf ---- See PrimaryKey, AutoKeysVersusDomainKeys