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Support by Adding Indexes
Multiple indexes can be used to access a data file by multiple access paths. In such a scheme only single copy of the data is consider, only the number of paths is added with the use of indexes. Let us talk about two main approaches in this category: Multi-List file organisation and Inverted file organisation.
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
prototype of a distributed information system for a national car part retail outlet chain.
Heap files (unordered file) Mostly these files are unordered files. It is the easiest and most basic type. These files having of randomly ordered records. The records will have
What is an entity relationship model? The entity relationship model is a collection of basic objects known as entities and relationship between those objects. An
Determine the Strong and Weak Entity Based on the method of foreign key, there might be arise a situation when we have to relate an entity having a primary key of its own and a
A student entity type has the following attributes,name..
waht is a repeating group?
explain at least five widly used case tools
What are the advantages and disadvantages of using a database system. Sol. Advantages of Database System (DBMS) : (1) Data Redundancy and Inconsistency: Since differen
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