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There are a number of possible solutions to the open ended brief. One of the simple ones is shown here without the PKs and FKs. It is important to think of how a number of tasks
The External or View Level The external or view level is the highest level of abstraction of database. It gives a window on the conceptual view, which permits the user to see
Benefits of using heuristics
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
find a name whose address is erode from student table
Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.
Objectives After reading this unit you should be able to: Explain storage of databases on hard disks; Discuss the execution of various file Organisation techniques;
What does data dictionary is a special file contains ? The data dictionary is a special file contain The name of all fields in all files.The width of all fields in all files an
Different stages of DDLC ?
what is the relationship between receipt and owner entities in computer sales and service company
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