Parallel database management method and parallel database management system

A database processing system, having a data processing program for processing data, for performing data processing by transferring an input query to said data processing program, comprising:

• an analyzing unit which analyzes said query containing a call of said data processing program;
• a data generating unit which decides whether said data is to be transferred to said data processing program based on a result of the analyzing by said analyzing unit, refers to data structure information held for reference of said data, and generates data to be transferred to said data processing program, when said result of the analyzing by said analyzing unit indicates that said data should be transferred;
• and
• an interface unit which transfers said data thus generated and data processing instructions based on said query to said data processing program.

A database program stored on a computer readable storage medium for performing, using a data processing program for processing data, database processing by transferring an input query to said data processing program, said database program when executed causes a computer to perform the steps of:

• analyzing said query containing a call of said data processing program;
• deciding whether said data is to be transferred to said data processing program based on a result of said analyzing step;
• referring to data structure information held for reference of said data and generating data to be transferred to said data processing program, when said result of said analyzing step indicates that said data should be transferred;
• and
• transferring said data thus generated and data processing instructions based on said query to said data processing program.

A database program stored on a computer readable storage medium for performing, using a data processing program for processing data, database processing by transferring an input query to said data processing program, said database program being executed by a computer comprising:

• analyzing code which analyzes said query containing a call of said data processing program;
• deciding code which decides whether said data is to be transferred to said data processing program based on a result of said analyzing code;
• referring code which refers to data structure information held for reference of said data and generates data to be transferred to said data processing program, when said result of said analyzing code indicates that said data should be transferred;
• and
• transferring code which transfers said data thus generated and data processing instructions based on said query to said data processing program.