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What is conceptual schema?
The schemas at the view level are known as subschema that describe dissimilar views of the database.
In Oracle what is system global area and how is it organized? The SGA is a collection of shared memory fields which along with the Oracle processes constitute an Oracle instan
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;
How to Insert data in your table from another table? insert into e.g, To insert tuples from employee into N_emp created above, use following statement Insert into N_emp
find a name whose address is erode from student table
is Chipo carrying his baby
coventions for displaying an ER schema as ER diagram
Implementing software control To implement software control designer must redesign strategy of state event model which is present in dynamic model. There are three basic ap
Mixed fragmentation: Sometimes, horizontal fragmentation or vertical fragmentation of a database schema by itself is insufficient to sufficiently distribute the data for some appli
Describe Physical Data independence ? Physical Data Independence - It is capacity to modify the internal schema without having to change conceptual schema. Therefore, the exter
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