| 摘要 |
The present invention relates generally to a computer system for providing access to a database upon a request from an application computer program 250 . The computer system includes a data model 260 represented in a data dictionary 230 , an application program interface, a data storage 220 , and a database kernel 210, 215 providing access from the application program interface to the data storage 220 . The database kernel 210, 215 comprises a runtime module 210 for providing access from the application program interface to the database kernel and a storage engine module 215 for providing access from the runtime module 210 to the data storage 220 . The runtime module 210 is dynamically changeable, dependent on the data model 260 represented in the data dictionary 230 , while the storage engine module 215 is invariable and independent of the data model. An automatic code generator 240 is arranged to generate an executable program code for the runtime module 210 , based upon the data model 260 represented in the data dictionary 230.
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