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What are the two types of errors?
The two types of errors are:
a) Logical error
b) System error
Chapter 10a review questions
Describe the iterative and incremental life cycle For an iterative and incremental life cycle, two criteria are process and time. The main components of showing a project devel
define attribute inheritance with example?
What does the extract statement do in extract datasets? The data is written to virtual memory by extract commands.
WHAT IS DSS? WRITE ITS REQUIREMENTS.
Why a report generator is used ? Report generator is used for print files on paper.
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
what are the states of transaction?
Describe the Composite Key Composite Key: Sometimes one key is not enough to uniquely recognize a row. E.g. in a single class Roll is enough to search a student, but in the w
The issues relating to the Design of the Physical Database Files Physical File is a file as stored on the disk. The major issues relating to physical files are: • Cons
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