METHOD AND APPARATUS FOR MANAGING THE COHERENCY FOR DATA STORED IN DISTRIBUTED DATABASES

摘要

The invention relates to a method for managing the coherency for data stored in a predetermined number of distributed databases (M) which store distributed database copies of a data entry, wherein in a data entry write operation an data entry is written as a database copy of the data entry to a distributed database (M) along with a calculated data entry index which indicates that the database copy of the data entry comprises up-to-date data of the data entry, wherein in a data entry read operation the database number of the distributed database (M) which stores the database copy comprising the up-to-date data of the data entry is identified by evaluating the data entry indices of all database copies of the data entry and wherein the database copy is read from the distributed database (M) having the identified database number.