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fix(guide): simplify directory structure

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Mrugesh Mohapatra
2018-10-16 21:26:13 +05:30
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guide/english/computer-science/databases/column-databases/index.md Normal file
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title: Column Databases
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## Column Databases
Column oriented databases are designed to efficiently return data for a limited number of columns. It does it by storing all of the values of a column together. A column oriented database will excel at read operations on a limited number of columns, however write operation will be expensive compared to row oriented databases.
#### More Information:
<!-- Please add any articles you think might be helpful to read before writing the article -->
Please visit the <a href="https://en.wikipedia.org/wiki/Column-oriented_DBMS">Column-oriented DBMS</a> Wikipedia page for more information.