Maintaining a configurable level of transaction consistency when using database replication through a content filter

A unidirectional gateway for database replication ensures transaction consistency and security by filtering and cleansing data in XML format, addressing data leakage and integrity issues across networks with differing security levels, enhancing reliability and visibility in the replication process.

WO2026006019A1 Publication Date: 2026-01-02ORACLE INT CORP
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Patent Information

Application Number
PCT/US2025/033579
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-29
Filing Date
2025-06-13
Publication Date
2026-01-02

AI Technical Summary

Technical Problem

Existing database replication technologies face challenges in maintaining transaction consistency and security, particularly in environments where access to transaction logs is restricted, leading to potential data leakage and integrity issues due to content filtering, especially across networks with differing security levels.

Method used

A unidirectional gateway that modifies and annotates database transaction files in a human-readable format, using XML, to ensure transaction consistency and security by filtering and cleansing data, while maintaining a configurable level of consistency through granular detection and metadata insertion, ensuring data integrity and privacy.

Benefits of technology

This approach enhances data integrity and privacy by preventing sensitive information leakage and maintaining transaction consistency across networks with different security levels, supporting near-real-time replication with increased reliability and visibility into the replication stream.

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Abstract

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.
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