System, device and method for data update notification

A data update notification method for notifying updates in a database management system performed by a server, the mehtod comprising:

• receiving a first update instruction from a first client which uses a first schema, wherein the first update instruction indicates a set of partial update operations associated with first data stored by the first client using the first schema;
• transforming the first update instruction into a second update instruction based on catalog information, wherein the second update instruction indicates a set of partial update operations associated with second data stored by a second client using a second schema;
• and
• transmitting the second update instruction to the second client, so that the second client can apply the second update instruction to the stored second data.

A database management system, comprising a first client, a second client and a server, wherein:

• the first client is configured to send a first update instruction to the server, wherein the first update instruction indicates a set of partial update operations associated with first data stored by the first client using the first schema;
• the server is configured to transform the received first update instruction into a second update instruction based on catalog information, and transmit the second update instruction to the second client, wherein the second update instruction indicates a set of partial update operations associated with second data stored by the second client using a second schema;
• and
• the second client is configured to apply the second update instruction to the stored second data.

A non-transitory computer readable medium comprising computer executable instructions for performing a data update notification method for notifying updates in a database management system, the method comprising:

• receiving a first update instruction from a first client which uses a first schema, wherein the first update instruction indicates a set of partial update operations associated with first data stored by the first client using the first schema;
• transforming the first update instruction into a second update instruction based on catalog information, wherein the second update instruction indicates a set of partial update operations associated with second data stored by a second client using a second schema;
• and
• transmitting the second update instruction to the second client, so that the second client can apply the second update instruction to the stored second data.