Abstract: The present invention discloses a method for querying and controlling a database, particularly, a method for identifying and anti-identifying in the database, and a method for querying an association model in the database in a recursion manner. The present invention further discloses a method for displaying the query result obtained through the query method.

Abstract: A method for data storage is disclosed. The method includes the following steps: establishing an entity table for storing entity information in a database (901); storing the entity information into the entity table (902); establishing a state table for storing state information of the entity in the database (903); storing the state information of the entity into the state table (904); associating the entity table with the state table (905); associating the state tables by using time dimension (906). A data storage structure and a method for storing and inquiring data in the data storage structure are also disclosed.