Method and device for validating data sets in a database

A computer-implemented method for validating a data set in a distributed database system, the distributed database system comprising a plurality of computers and a central computer, the method comprising:

• storing the data set in the distributed database system, the data set including a table having a plurality of columns, each column of the plurality of columns being associated with a data type, each row of the data set having an entry, the data set being stored distributedly on the plurality of the computers with respect to the plurality of columns;
• sending, with the central computer, a request to the plurality of computers, the request including a command to check a respective partial data set of the data set stored on each respective computer of the plurality of computers;
• checking, with each respective computer of the plurality of computers, whether entries in an entire column of the respective partial data set satisfy a criterion;
• returning, with each respective computer of the plurality of computers, a respective message to the central computer indicating a result of the checking of the respective partial data set;
• and
• validating, with the central computer, the data set depending on the respective message received from each respective computer of the plurality of computers.