MAINTAINING A CONFIGURABLE LEVEL OF TRANSACTION CONSISTENCY WHEN USING DATABASE REPLICATION THROUGH A CONTENT FILTER

Original (Chinese)

Here is database replication that, for consistency and security, is based on an innovative unidirectional gateway that modifies and annotates a sequence of human-readable database transaction files. On a communication network, the unidirectional gateway receives a batch of change entries in a database transaction extensible markup language (XML) file. The unidirectional gateway modifies change entry(s). The unidirectional gateway generates and inserts, into the database transaction XML file, metadata that describes the modifications of the change entries. The modified database transaction XML file is converted into a binary file format that for a downstream database and, before or after that conversion, downstream processing of the database transaction file is based on the metadata that describes the modifications of the change entries.