Emulator for an SQL relational-database
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United States of America Patent
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Dec 14, 1999
Grant Date -
N/A
app pub date -
May 4, 1998
filing date -
Jul 14, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method and means for porting an existing application (An) using a relational-database with SQL interface toward a hardware platform (HW2) with a reduced software configuration which does not include an SQL relational-database. The invention emulates an SQL database enabling hardware resources saving and providing a subset of functions for: creating SQL tables and defining fields; storing, modifying and deleting data on created tables, with a type check, retrieving such data by using SQL filters. Functions can be subdivided into levels (M1, M2, M3) in order to: convert an SQL statement, coming from an existing user application (An), into a sequence of elementary interface functions (IF1 . . . IFn), use said interface functions to read/write data files (F1 . . . Fn), process output data to be supplied to the requesting user application (An).
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