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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.
why older data models are being replaced by new data models.
4. Describe three ways to handle missing field values
The dataset " CFOLYMPICS.XLS " contains the observations used in the above article. The definitions of the variables are also included in this spreadsheet. However, for the purpo
write on the various type of relationalkey
What is Cardinality Ratio? Cardinality Ratios - The cardinality ratios for relationship kinds specifies the maximum number of relationship instances in which an entity can pa
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
create an er diagram for production management in film industry
Give some encryption techniques? A) DES B) AES C) Public key encryption
We face problem of stock Opening balance and closing balance in Minus
Dirty Reads: T10 reads a value which is updated by T9. This update has not been committed and T9 aborts. T9 T10 Value of x old value = 200
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