Control method, recording medium, and information processing device

A computer-readable medium storing therein a control program that causes a computer to execute a process, the process comprising:

• generating, when specification of a first data table constituting data to be retrieved is received, a data table copy that is a copy of the first data table, and switching the data to be retrieved, from the first data table to the data table copy;
• and
• performing a data retrieval process with respect to the data table copy, by controlling any one of a number of the data to be retrieved from the data table copy and a data retrieval interval, based on a load state estimated from a result of the data retrieval process.