AUTOMATIC ENFORCEMENT OF RELATIONSHIPS IN A DATABASE SCHEMA
First Claim
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1. A method of enforcing a database relationship, comprising:
- specifying using a markup language within a database schema a host structure and a reference type for the host structure that indicates an association between the host structure and a parent structure to which the host structure refers and specifies the relationship between the host structure and the parent structure, wherein the reference type is specified using the markup language and selected from at least a first reference type and a second reference type;
automatically generating code that enforces the relationship between the host structure and the parent structure based on the reference type specified in the database schema;
enforcing the relationship using the automatically generated code, including determining whether the reference type for the host structure is of the first reference type or the second reference type.
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Abstract
A technique for enforcing a database relationship is disclosed. The technique includes specifying within a database schema a reference type that associates two structures and specifies the relationship between the two structures, and automatically generating code that checks the relationship between the two structures based on the specified reference in the database schema.
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Citations
21 Claims
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1. A method of enforcing a database relationship, comprising:
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specifying using a markup language within a database schema a host structure and a reference type for the host structure that indicates an association between the host structure and a parent structure to which the host structure refers and specifies the relationship between the host structure and the parent structure, wherein the reference type is specified using the markup language and selected from at least a first reference type and a second reference type; automatically generating code that enforces the relationship between the host structure and the parent structure based on the reference type specified in the database schema; enforcing the relationship using the automatically generated code, including determining whether the reference type for the host structure is of the first reference type or the second reference type. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for enforcing a database relationship, comprising:
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a processor configured to; specify using a markup language within a database schema a host structure and a reference type for the host structure that indicates an association between the host structure and a parent structure to which the host structure refers and specifies the relationship between the host structure and the parent structure, wherein the reference type is specified using the markup language and selected from at least a first reference type and a second reference type; automatically generate code that enforces the relationship between the host structure and the parent structure based on the reference type specified in the database schema; enforce the relationship using the automatically generated code, including determining whether the reference type for the host structure is of the first reference type or the second reference type. a memory that is coupled with the processor, wherein the memory provides the processor with instructions.
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21. A computer program product for enforcing a database relationship, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions executable to:
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specifying using a markup language within a database schema a host structure and a reference type for the host structure that indicates an association between the host structure and a parent structure to which the host structure refers and specifies the relationship between the host structure and the parent structure, wherein the reference type is specified using the markup language and selected from at least a first reference type and a second reference type; automatically generating code that enforces the relationship between the host structure and the parent structure based on the reference type specified in the database schema; enforcing the relationship using the automatically generated code, including determining whether the reference type for the host structure is of the first reference type or the second reference type.
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Specification