DATA SELECTION

• US 20140019941A1
• Filed: 03/11/2013
• Published: 01/16/2014
• Est. Priority Date: 07/10/2012
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Funke, Florian, Gerstl, Peter, Haischt, Daniel S.
• Granted Patent: US 9,098,630 B2
• Time in Patent Office: Days
• US Class Current: 717/124
• CPC Class Codes: G06F 11/3672 Test management
• CPC Class Codes: G06F 3/048 Interaction techniques based on graphical user interfaces [GUI]
• CPC Class Codes: G06F 3/04842 Selection of displayed objects or displayed text elements G06F3/0482 takes precedence
• CPC Class Codes: G06F 3/0489 using dedicated keyboard keys or combinations thereof
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling

Abstract

In an exemplary embodiment of this disclosure, a data selection method may include receiving first data representative of program code having a plurality of database operations. Second data is generated and is representative of a sequence of operations encounterable in an execution of the program code, where the sequence of operations includes at least one of the database operations. A third data is selected from a database, by using the second data.

Claims

1. A data selection method comprising:

receiving first data representative of program code comprising a plurality of database operations;

generating second data representative of a sequence of operations encounterable in an execution of said program code, said sequence of operations comprising at least one of said database operations; and

selecting third data from a database using said second data.

2. The method of claim 1, further comprising:

establishing, for a parameter used in an operation belonging to said sequence of operations, a value of said parameter at an onset of said sequence of operations; and

establishing, using said value, a collection of values of said parameter encounterable in an execution of said sequence of operations;

wherein said selecting third data uses said collection of values.

3. The method of claim 1, further comprising:

establishing an entry point into said program code; and

generating fourth data representative of each sequence of operations encounterable in the execution of said program code starting from said entry point

wherein generating said second data comprises selecting said second data from said fourth data.

4. The method of claim 3, further comprising:

establishing, for a parameter used in an operation belonging to a first sequence of operations represented by said fourth data, a value of said parameter at said entry point; and

establishing, using said value, a collection of values of said parameter encounterable in an execution of at least one of said first sequence of operations represented by said fourth data to which said operation belongs;

wherein selecting said third data uses said collection of values.

5. The method of claim 1, further comprising:

receiving fifth data representative of at least one of a structure of data of said database and a relationship between data of said database;

wherein selecting said third data uses said fifth data.

6. The method of claim 1, further comprising:

executing said sequence of operations using said selected third data as an operand for said at least one of said database operations.

7. The method of claim 1, further comprising:

executing said sequence of operations using no more data of said database as an operand for said at least one of said database operations than said selected third data.

8. A data selection system comprising:

a data receiver configured to receive first data representative of program code comprising a plurality of database operations;

a data generator configured to generate second data representative of a sequence of operations encounterable in an execution of said program code, said sequence of operations comprising at least one of said database operations; and

a data selector configured to select third data from a database using said second data.

9. The system of claim 8, further comprising:

a value establisher configured to establish, for a parameter used in an operation belonging to said sequence of operations, a value of said parameter at an onset of said sequence of operations; and

a collection establisher configured to establish, using said value, a collection of values of said parameter encounterable in an execution of said sequence of operations;

wherein said data selector uses said collection of values for said selection of data.

10. The system of claim 8, further comprising:

an entry point establisher configured to establish an entry point into said program code;

wherein said data generator generates fourth data representative of each sequence of operations encounterable in execution of said program code starting from said entry point; and

wherein said generating of second data comprises selecting said second data from said fourth data.

11. The system of claim 10, further comprising:

a value establisher configured to establish, for a parameter used in an operation belonging to a first sequence of operations represented by said fourth data, a value of said parameter at said entry point; and

a collection establisher configured to establish, using said value, a collection of values of said parameter encounterable in an execution of at least one of said first sequence of operations represented by said fourth data to which said operation belongs;

wherein said data selector uses said collection of values for said selection of third data.

12. The system of claim 8, wherein:

said data receiver receives fifth data representative of at least one of a structure of data of said database and a relationship between data of said database; and

said data selector uses said fifth data for said selection of third data.

13. The system of claim 8, further comprising:

an operation sequence executor configured to execute said sequence of operations using said selected third data as an operand for said at least one of said database operations.

14. The system of claim 8, further comprising:

an operation sequence executor configured to execute said sequence of operations using no more data of said database as an operand for said at least one of said database operations than said selected third data.

15. A computer program product comprising a computer readable storage medium having computer readable program code embodied thereon, the computer readable program code executable by a processor to perform a method comprising:

receiving first data representative of program code comprising a plurality of database operations;

generating second data representative of a sequence of operations encounterable in an execution of said program code, said sequence of operations comprising at least one of said database operations; and

selecting third data from a database using said second data.

16. The computer program product of claim 15, the method further comprising:

establishing, for a parameter used in an operation belonging to said sequence of operations, a value of said parameter at an onset of said sequence of operations; and

establishing, using said value, a collection of values of said parameter encounterable in an execution of said sequence of operations;

wherein said selecting third data uses said collection of values.

17. The computer program product of claim 15, the method further comprising:

establishing an entry point into said program code; and

generating fourth data representative of each sequence of operations encounterable in the execution of said program code starting from said entry point wherein generating said second data comprises selecting said second data from said fourth data.

18. The computer program product of claim 17, the method further comprising:

establishing, for a parameter used in an operation belonging to a first sequence of operations represented by said fourth data, a value of said parameter at said entry point; and

establishing, using said value, a collection of values of said parameter encounterable in an execution of at least one of said first sequence of operations represented by said fourth data to which said operation belongs;

wherein selecting said third data uses said collection of values.

19. The computer program product of claim 15, the method further comprising:

executing said sequence of operations using said selected third data as an operand for said at least one of said database operations.

20. The computer program product of claim 15, the method further comprising:

executing said sequence of operations using no more data of said database as an operand for said at least one of said database operations than said selected third data.