Method for carrying out graded redundant storage on columns in data tables

The invention discloses a method for carrying out graded redundant storage on columns in data tables. Being based on a plurality of service nodes which can be independently operated, the method can be adapted to complex software and hardware equipment and multiple development languages under cloud computation environment, and is independent of specific equipment or software; the prior art is realized on dependency of specific hardware, operation systems or software tools; and compared with the prior art, the method has relatively strong compatibility. According to the method, different storage nodes and redundancies are respectively set according to the degrees of importance of data columns, corresponding storage rules corresponding to different storage nodes are made, and a form of braking up the whole into parts is used for completing the redundant storage of each node, so that parallel execution can be carried out without influencing the execution of normal businesses. 本发明公开种对数据表中列进行分级别冗余存储的方法，该方法基于多个可以独立运