A method for generating a 
database schema in order to generate an integrated view capable of obtaining desired data from 
data resources dispersed and stored in different formats in different locations, and an data integrating 
system are provided. The method includes rules for 
parsing the structure and contents of an 
database described in a 
specification language, generating a schema semantically corresponding to the 
database, and defining data items required for generating an integrated view. Also, in order to generate a global schema expressing an integrated view, part of 
XQuery grammar is introduced for local schemas expressing a single database, and a definition of standard expression for expressing a 
data view is included. Accordingly, an data integrating 
system can generate an integrated view for a variety of heterogeneous databases dispersed on a network by using a 
specification language, and post a query in real time.