Heterogeneous database synchronization method and application system
A data synchronization and database technology, applied in the database field, can solve problems such as heterogeneous database data synchronization, and achieve easy expansion and simple implementation
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[0020] figure 1 It is a flowchart of Embodiment 1 of the synchronization method of heterogeneous databases of the present invention, such as figure 1 As shown, the method of this embodiment may include:
[0021] Step 101: When determining that a data change occurs in the source data table of the source database, the synchronization processor stores the identification information of the changed data in the source data table in the synchronization change table, and the identification information includes at least the source The table name of the data table, the primary key value of the change data in the source data table, the change type value, and the change time;
[0022] Step 102: When the polling period arrives, the synchronization processor obtains the identification information before the current time from the synchronization change table according to the change time in the synchronization change table, and obtains the identification information before the current time accordin...
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