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    • 10. 发明申请
    • Systems and methods for modeling tree structures
    • 用于建模树结构的系统和方法
    • US20070027884A1
    • 2007-02-01
    • US11193362
    • 2005-08-01
    • Achim HegerKarsten Koetter
    • Achim HegerKarsten Koetter
    • G06F7/00
    • G06F17/30961G06F17/30327Y10S707/99942Y10S707/99953
    • Systems and methods are provided for inserting a new node into a tree structure for use within a database system, wherein the tree structure comprises one or more parent nodes having space there under, and one or more child nodes; wherein each node comprises an identification, a left value, a right value, a width, and a tree node interval; each child node comprises of a pointer to the associated parent node of the child node; and the new node is a child node having an identification corresponding to the identification of a parent node. The method may comprise determining the identification of the parent node of the new node, determining the width of the new node, determining whether a gap exists in the tree structure for a parent node having an identification equal to the determined parent node identification, and if a gap exists, inserting the new node into the gap if the width of the gap is equal to or greater than the width of the new node.
    • 提供了系统和方法,用于将新节点插入到用于数据库系统的树结构中,其中所述树结构包括一个或多个在其下方具有空间的父节点和一个或多个子节点; 其中每个节点包括标识,左值,右值,宽度和树节点间隔; 每个子节点包括指向子节点的相关联的父节点的指针; 并且新节点是具有与父节点的标识相对应的标识的子节点。 该方法可以包括确定新节点的父节点的标识,确定新节点的宽度,确定具有等于所确定的父节点标识的标识的父节点的树结构中的间隙是否存在,以及如果 存在间隙,如果间隙的宽度等于或大于新节点的宽度,则将新节点插入到间隙中。