Interactive error handling means in database management

Details Interactive error handling means in database management Interactive error handling means in database management

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Patent

CA 1301366

ABSTRACT In a relational database management system interactive error-handling means comprises means for calling an operation means and a fetch means. The fetch means operates against a cursor to retrieve a record occurrence noninteractively for operation. The operation means validates the selected operation and can set an error condition signal. When the selected operation is valid, the operation is performed and the operation means provides a return signal to the calling means, which calls the fetch means to retrieve the next record occurrence. When the selected operation is invalid, the fetch means responds to the error condition signal by operating interactively to display the previously retrieved signal with an error message. The interactive user can correct the error so that noninteractive operation can continue.

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