Data query method, apparatus and device

One or more computer readable media storing thereon computer-readable instructions that, when executed by one or more processors, cause the one or more processors to perform acts comprising:

• receiving a query request sent by a client;
• determining resource occupation information of a data set corresponding to the query request;
• in response to determining to cache the query request according to the resource occupation information, obtaining the data set corresponding to the query request and storing the data set in an external memory;
• reading the data set from the external memory;
• and
• sending the data set to the client.

A device comprising:

• one or more processors;
• and
• one or more computer readable media storing thereon computer-readable instructions that, when executed by the one or more processors, cause the one or more processors to perform acts comprising:
• receiving a query request sent by a client;
• determining resource occupation information of a data set corresponding to the query request;
• in response to determining to cache the query request according to the resource occupation information, obtaining the data set corresponding to the query request and storing the data set in an external memory;
• and
• reading the data set from the external memory.