multiple choice Data Managment question: A procedural language interface is nece
ID: 3848246 • Letter: M
Question
multiple choice Data Managment question:
A procedural language interface is necessary because nonprocedural access and application development tools of database software are sometimes not powerful enough or do not provide the level of control necessary for significant application development.
True
False
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An unknown value, or a value that does not apply to a given row of a table, is indicated by:
A-The string of characters 'NA'
B-The string of characters 'null'
C-The value of the smallest negative integer that can be represented by the system
D-The value 0
E-None of the above
Explanation / Answer
1 Answer)
A procedural programming language is a language which provides a step by step task to complete a computational problem needed to carry out a big/complex task. And non - procedural language does not provide the series of procedures which are needed to carry out a task finally.
Hence the right answer is true
2 Answer)
The value in a row of a table which is not known and which does not applies to it is represented by null. It is a way of representing missing data in a row. Its not a value actually, its just a representation technique when a field is empty.
Hence the correct option is B - null
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