Data, as we all know is expanding exponentially by the second. Managing the data is more important than ever. Management includes setting up an efficient process to work with the data while assuring security.
Relational databases are the modern-day answer to all your data management queries. But, database management systems sometimes need to undergo the optimization process in order to perform efficiently. Today we look at some best practices that help in the Database performance tuning.
During the process of indexing, the database stores the data for the indexed columns. But in case of any changes or addition of rows, the value of the data stored in the index is affected. Due to this, the database will accommodate the new rows by reorganizing the data. The newly reorganized data affects the indexing thus causing a negative impact on the DML queries.
The most effective solution to this problem is an estimated growth rate for the database. Once you the intervals at which there will be additions, the same can be specified for the index. The common term used to mention estimated growth for an Oracle database is PCTFREE (percentage Free).
While this might sound a little tricky, dropping indexes before the actual data can improve the database performance. The main reason behind this is the fact that it causes the INSERT statement to run faster. After the loading process is finished, one can recreate the indexes.
The solution works on the principle of moving data between two tables. Once you have finished loading data to a temporary table without indexes, it can further be transferred to the primary table. The movement between these two is comparatively faster than an external source being used to load data. Once finished, recreate the indexes to finish the process.
Database performance tuning is an ever-evolving process and small tweaks around the process can help create a faster performing database management system.
OptimizDBA is a leader in non-intrusive database performance tuning service. We can help you unlock the true potential of your database that will help in improving application performance and even reduction in costs. get in touch with us and we can discuss more on how we can help you.