Boolean literal and parameter handling in object relational...

Details Boolean literal and parameter handling in object relational... Boolean literal and parameter handling in object relational...

2011-01-18

2011-01-18

wong, don (Department: 2163)

Data processing: database and file management or data structures

Data integrity

Type checking

C707S708000, C707S760000, C707S763000, C707S769000, C707S705000, C707S776000

Reexamination Certificate

active

07873611

ABSTRACT:
Techniques for object relational mapping in database technologies are described herein. According to one embodiment, in response to a query statement for accessing a relational database, a syntax tree is generated to represent semantic information of the query statement, where the query statement has a boolean parameter and is implemented as an SQL object. A data type of the boolean parameter is predicted based on the semantic information obtained from the syntax tree in view of a structure representing the syntax tree. The boolean parameter is configured to be either a numeric value or a string dependent upon metadata used to map the SQL object to the relational database. Other methods and apparatuses are also described.

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