Method for creating a database clone of a distributed and at least partially replicated database, wherein the distributed database is stored on source nodes (11, 12, 13, 14) of a computer network, wherein the distributed database comprises a set of data items (D1, D2) being distributed across the source nodes (11, 12, 13, 14), wherein a first data item of the set of data items (D1, D2) is stored on a first node of the source nodes (11, 12, 13, 14), wherein the method comprises the steps of: -- coupling collector nodes (21, 22) to the computer network by connecting the collector nodes (21, 22) to the source nodes (11, 12, 13, 14), wherein the computer network comprises a mapping function for assigning source nodes (11, 12, 13, 14) to collector nodes (21, 22), wherein the collector nodes (21, 22) comprise a second node and the first node is assigned to the second node by the mapping function, -- starting a cloning process, wherein the cloning process includes: -- creating, on the second node, a copy of the first data item of the first node, -- updating, in a transaction step, the first data item of the first node, -- transmitting - to the second node storing the copy of the first data item - transaction data related to the transaction step, wherein reception of the transaction data is confirmed by the second node, wherein the transaction data includes information used to update the first data item of the first node, wherein the transaction data is stored on the second node, and updating the copy of the first data item being stored on the second node by using the transaction data, -- completing the cloning process such that a complete copy of the set of data items (D1, D2) of the source nodes (11, 12, 13, 14) is stored on the collector nodes (21, 22) by creating the database clone using the copy of the set of data items (D1, D2) and transaction data stored on the collector nodes (21, 22), wherein the distributed and clone databases have the same or a different number of nodes, the same or a different database implementation and/or the same or a different configuration. -- coupling collector nodes (21, 22) to the computer network by connecting the collector nodes (21, 22) to the source nodes (11, 12, 13, 14), wherein the computer network comprises a mapping function for assigning source nodes (11, 12, 13, 14) to collector nodes (21, 22), wherein the collector nodes (21, 22) comprise a second node and the first node is assigned to the second node by the mapping function, -- starting a cloning process, wherein the cloning process includes: -- creating, on the second node, a copy of the first data item of the first node, -- updating, in a transaction step, the first data item of the first node, -- transmitting - to the second node storing the copy of the first data item - transaction data related to the transaction step, wherein reception of the transaction data is confirmed by the second node, wherein the transaction data includes information used to update the first data item of the first node, wherein the transaction data is stored on the second node, and updating the copy of the first data item being stored on the second node by using the transaction data, -- creating, on the second node, a copy of the first data item of the first node, -- updating, in a transaction step, the first data item of the first node, -- transmitting - to the second node storing the copy of the first data item - transaction data related to the transaction step, wherein reception of the transaction data is confirmed by the second node, wherein the transaction data includes information used to update the first data item of the first node, wherein the transaction data is stored on the second node, and updating the copy of the first data item being stored on the second node by using the transaction data, -- completing the cloning process such that a complete copy of the set of data items (D1, D2) of the source nodes (11, 12, 13, 14) is stored on the collector nodes (21, 22) by creating the database clone using the copy of the set of data items (D1, D2) and transaction data stored on the collector nodes (21, 22), wherein the distributed and clone databases have the same or a different number of nodes, the same or a different database implementation and/or the same or a different configuration.