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Types of data independence Data independence can be classified into the following two types: Physical Data Independence: This means that for any change made in the physi
Consider a systems development project with the following data Activity Duration (weeks) Precedence Relationship 1. Software design
What sorts of tables one can se in designing the hierarchy of a LDB? Tables, which are having Foreign Key relations.
For each 1: n relationship type R involving two entities E1 and E2, we recognize the entity type (say E1) at the n-side of the relationship type R and contain primary key of the en
Give a sample of the Dynamic Model. The sample of dynamic model is given below: Dynamic model for the car: Brake and Accelerator Brake or Applies Accelerator
what do you understand by enhanced entity-relationship
You want to implement following relationships when designing tables. How would you do it? a.) One-to-one b.) One-to-many c.) Many-to-many a.) One-to-One relationship -
recovey techniques based on deferred update and immediate update
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
#what is cursor its uses ? Explain it
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