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Interpretive Database Table Access Algorithm Disclosure Number: IPCOM000057994D
Original Publication Date: 1988-Aug-01
Included in the Prior Art Database: 2005-Feb-15

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Copenhaver, MA Coyle, DJ Hintz, TE [+details]


The Structured Query Language (SQL) developed for use with relational database systems is used to describe database operations to the IBM Database Manager. Accessing records in a database table is one such operation. Other database products employ a system of control blocks which implement control functions and record accesses specified by a given SQL statement. These control blocs are subsequently manipulated by control block specific functions at execution time. This requires a relatively complex supervisor function to control the execution environment and invocation of the database manipulation algorithms. This new method employs the Table Access threaded-code operator which functions in a common environment with the other threaded-code operators.