Data query method and device, electronic equipment and storage medium

The invention relates to a data query method and device, electronic equipment and a storage medium, and relates to the technical field of data processing. The method comprises the steps that a data serial number of to-be-queried data in a preset data set is obtained, and according to the data serial number, a first target deviation value is determined through a first index table, each first index in the first index table is in one-to-one correspondence with each pre-divided data interval in the preset data set, the first index corresponds to a first offset value, and the first offset value is the offset of the storage address of the data interval corresponding to the first index relative to the initial storage address of the preset data set; and the first target offset value is a first offset value corresponding to a target data interval in which the to-be-queried data is located, determining a second target offset value through a second index table according to the data sequence number, and determining the t