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What is the function of a Domain?
A domain defines the technical settings of a table field.
A domain describes a value range, which sets the permissible data values for the fields, which refers to this domain.
A single domain can be used as basis for any number of fields that are identical in structure.
The indices are accumulated in the index files. The data is accumulated in the data files. Indices give fast access to data items. For example, a book database may be managed in th
What is average response time? The average response time is that the average time for a transaction to be done after it has been submitted.
Discuss how the one-to-one associations have to be implemented. Some of properties of associations can be implemented directly by providing suitable declarations of the data me
Given the following relations Vehicle (Reg_no, make, colour) Person(eno, name, address) Owner(eno, reg_no) Write expressions in the relational algebra to answer the following
Briefly explain what is to be done during defining problem statement. To define Problem Statement of a system, define what is to be done and how you can go to implement that. Y
What does the extract statement do in extract datasets? The data is written to virtual memory by extract commands.
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Can your organization scan large format documents? Yes, large format scanning used for such entities as city plans and blueprints is available. We selected scanners with the ab
to develop elrctronic database from manual forms
The participation Constraints shows whether the existence of an entity depends on its being associated to another entity by the relationship type. There are two kinds of participat
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