Abstract: A method and system for automatic retrieval of a document linking to a starting document that has a static address on a data network. A sequence of commands that cause a browser in a computer system to navigate from a starting document to a target document on a data network is recorded. The recorded sequence of commands can be reproduced to cause the browser to navigate from the starting document through a sequence of intermediate documents to the refreshed version of the target document. More particularly, the invention allows retrieval of the target document even when the intermediate and the target documents are dynamically generated by a server computer and thus their online addresses change every time they are loaded.

Abstract: A system for implementing a distributed electronic publishing environment with dynamic content. With this approach, the design of the page and content of the page remain separate, and yet automatic page generation may make use of caching techniques which are appropriate for the specific level of expected page content dynamics. The purpose of the page thus drives its caching implementation. If the page is relatively static, then the entire page itself is delivered from a static cache. If, however, only certain components of the page are expected to be dynamic, then only the portions of the page which can be rendered in advance are cached. The dynamic portions of the page are represented as executable versions of elements that specify instructions for how the page is to be rendered. Furthermore, result sets are cached when the dynamic portion of the page depends upon the contents of an external database.

Abstract: A replication method includes several acts. An identifier column is generated for each table of a tree of master tables, each of the master tables including a key column and an identifier column, wherein one of the master tables is a root master table, wherein all of the other master tables are foreign key master tables that are foreign key dependent upon at least one other of the master tables, wherein all of the master tables can be reached by traversal of the tree of master tables. The tree of master tables is copied to a tree of satellite tables, so that the tree of satellite tables is a replica of the tree of master tables. An insert trigger is associated with each of the master tables. A checksum is assigned to the checksum column of an inserted row, the assigning caused by one of the insert triggers and occurring responsively to inserting a row into one of the master tables.

Abstract: A method for extracting digests, reformatting, and automatic monitoring of structured online documents based on visual programming of document tree navigation and transformation is provided for structured online documents such as HTML, XML, SGML document, or any other document that has internal structure that can be represented by a tree. A digest of an online document is a collection of fragments of this document which are of interest to a user. The system is based on a technique whereby a user selects a fragment of an online document shown in a source window and copies this fragment to the target window that contains the reformatted digest. The system generates a sequence of web site navigation commands, online document tree navigation commands, and “Copy Fragment” commands that cause the assembly of the reformatted digest in the target window.

Abstract: A replication method includes several acts. An identifier column is generated for each table of a tree of master tables, each of the master tables including a key column and an identifier column, wherein one of the master tables is a root master table, wherein all of the other master tables are foreign key master tables that are foreign key dependent upon at least one other of the master tables, wherein all of the master tables can be reached by traversal of the tree of master tables. The tree of master tables I copied to a tree of satellite tables, so that the tree of satellite tables is a replica of the tree of master tables. An insert trigger is associated with each of the master tables. A checksum is assigned to the checksum column of an inserted row, the assigning caused by one of the insert triggers and occurring responsively to inserting a row into one of the master tables.