Database system for a social network using blockchain technology

A relational database system for a social network, through which a number of users can share data with each other, the relational database system comprising:

• at least one server, the at least one server having processing circuitry and at least one storage device;
• wherein the storage device is configured to store computer executable instructions, and the processing circuitry, when it executes the computer executable instructions, is configured to:
• store the data in the at least one storage device as data blocks in tables with a plurality of rows,
• assign the data blocks to a user, such that the assigned data blocks can be managed exclusively by the user to whom the data blocks are assigned,
• share the data blocks between individual users, wherein
• sharing of the data blocks between individual users in the social network is defined by predetermined data chains, each data chain specifying the data blocks assigned to a user, and specifying the user with whom the data blocks are shared, wherein each data chain thus represents a connection between the individual users, and each data chain is formed internally in the social network,
• store each data chain as a table in the at least one storage device of the relational database system such that the data chain can be managed exclusively by the user to whom the corresponding data blocks are assigned,
• create one new table upon the sharing of the data blocks with the user, the new table comprising the data chain specifying the data blocks to be shared with the user, and the user with which the data blocks are to be shared,
• store the one new table with the data blocks according to the data chain in the at least one storage device of the relational database system,
• assign a predetermined program to the at least one data chain that performs predetermined functions based on the data specified by the data chain,
• fix each data chain with the corresponding data blocks in such a way that it cannot be modified by any user thereby providing a fixed data chain with corresponding fixed data blocks,
• confirm, by the fixed data chain with the corresponding fixed data blocks, an agreement achieved between the one user and the user with whom the data blocks are shared, and
• secure the fixed data chain with the corresponding fixed data blocks on a blockchain independent from the relational database system.