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How to optimize the database? These six tips work miraculously

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Mayur Rathod
How to optimize the database? These six tips work miraculously

The past few years have witnessed a massive increase in data volumes. But, data, just like oil, deliver value only when processed. Therefore, data optimization has become a significant challenge for software development companies across the globe.


SQL is a universally accepted language for database management systems. Its strength lies in its simple syntax and user-friendliness. Here we are sharing six practical tips to help you tune and optimize your database.


Prepare an index


Just like an index in the book makes it easier for the reader to access content, a properly formed index in SQL makes the data retrieval process easy. An ideal SQL index offers the below-mentioned benefits:

  • Creates separate data columns.
  • Prevents overlapping.
  • Makes data access quick and hassle-free.


However, one should avoid excessive or no indexing.


Relevant data retrieval


The process of data retrieval needs precision. Most people use the SELECT * command for data retrieval. Instead, using * and LIMIT command is a more appropriate way of tuning the database. If you need only a limited portion of the data, you need not retrieve the whole set. It saves both time and space.


Eliminate Subqueries


As the name suggests, sub-query originates from the parent or outer query. Generally, one has to search for sub-queries row by row, which is tedious. In addition, it reduces the overall speed of database optimization. Subquery runs for each row when the WHERE command is applied. As a result, it slows down the process and reduces the database's efficiency. One can rather use the INNER JOIN command to tune the database and eliminate subqueries in such a situation.


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