Single-source multi-node data synchronization method and system

The invention discloses a single-source multi-node data synchronization method and system, and relates to the field of data synchronization. The method comprises the following steps: establishing a change data table through a trigger, inserting a plurality of change data into the change data table, respectively reading the plurality of change data through a plurality of nodes, and selecting to-be-synchronized data in the change data for synchronization. According to the method, multiple change data in the change data table are read through multiple nodes; and to-be-synchronized data in the change data are selected for synchronization, so that trigger data of only one data source is generated. Therefore, the data can be synchronized to any node, the timeliness of data synchronization is considered, and junk data generated by a database and the pressure of the database are reduced. 本发明公开了一种单源多节点的数据同步方法和系统，涉及数据同步领域。该方法包括：通过触发器建立一个变化数据表，将多个变化数据插入到变化数据表中，通过多个节点分别读取多个变化数据，并选择变化数据中待同步数据进行同步，本发明方案通过多个节点分别读取一个变化数据表中的多