Base on the database inquiry algorithm of the recursion research and realizes

With a high priority in database development and application, database query algorithm is especially important for complex data processing in deep level. Aiming at accomplishing queries for multi-level users, a new iterative query algorithm is proposed on top of the recursive algorithms. This algorithm starts from choosing a root node, which taken as the only entry and exit of the algorithm. Then it traverses to all the related nodes from the root node and the corresponding data processing will be conducted. Finally ,through the experiment, the algorithm is verified and its performance is evaluated.