sql5.19.3.pdf (544 Kb)
WebRingSQL5 uses XPath and applies foreign keys implicitly, i.e. uses tree's model over rational model; performs query in several databases, including replicates several databases and provides peer-to-peer network for BLOBs; specifies right of access for each record, what makes some records invisibile for certain users; surrounds found match in full-text search by tags, extracts also necessary amounts of words before and after of the found match and surrounds them in other way; installs constraints 'not rift', 'not cross', 'sole' for an interval field within whole table; sends spatial data directly into Window System (e.g. X11) without OpenGL; and some others.
Dmitry Turin, DmitryTurin@narod.ru