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§Trie is a special structure to represent sets of character strings.

§Can also be used to represent data types that are objects of any type e.g. strings of integers.

The word "trie" is derived from the middle letters of the word "retrieval

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Data about data is called what in a database?

"Metadata" defines the structure of the data stored.


What is data intergration?

Data integration is the process of combining data from multiple sources into a unified view. It involves extracting data, transforming it to fit the desired structure, and loading it into a target database or data warehouse. This ensures that data is consistent, accurate, and available for analysis across the organization.


What is a stack in data structure?

A stack in Data structure is a LIFO structure. Last In First Out. Think of it as a stack of books or a stack of trays in a cafeteria line. when you are in a line in a cafeteria you take the tray that is on the top and the worker place new washed ones also on the top. So deletion and insertion all done at one end, it is called the top of the stack. In Computer Programming Stacks are so important and have too many applications such as the evaluation of Mathematical expressions. Also note that a stack is unlike a queue structure. Queue data structure is FIFO. First In First Out as in a bank teller line.


Concept of data independence?

Data independence is a form of database management that keeps data separated from all programs that make use of the data. As a cornerstone for the idea of a DBMS or database management system, data independence ensures that the data cannot be redefined or reorganized by any of the programs that make use of the data. In this manner, the dataremains accessible, but is also stable and cannot be corrupted by the applications using it.


Data maintained about the data within the data warehouse is defined as?

Data about other data is metadata.