1. A data processing method, comprising: acquiring to-be-stored data in a data table in a columnar database; determining, according to a set storage column width and width information of the to-be-stored data, continuous space of an allocated disk cylinder that needs to be allocated; editing all columns of the to-be-stored data according to the storage column width to convert all the columns into at least one standard column, and recording conversion information, wherein a column width of the standard column is the storage column width; dividing, according to the continuous space of the allocated disk cylinder and a set section storage size, each standard column obtained after conversion into at least one section, wherein a size of each section obtained by means of division is the set section storage size; and storing same-row data of the to-be-stored data in a same disk cylinder, wherein data in each section of columns is successively stored in the allocated disk cylinder.