Introduction The dynamics of database management prioritize efficient data retrieval as a key performance index. Herein lies the significance of database statistics, which provide a snapshot of database content like row counts in a table or value distributions within a… Read More »What is the Importance of Database Statistics in Query Optimization?
Introduction to EXPLAIN Plains An EXPLAIN plan, often simply called an “explain”, is a tool in SQL-based database systems like PostgreSQL that provides information about how a database will execute a given query. By inputting a SQL query to the… Read More »What is an EXPLAIN Plan? How is it interpreted?
As a PostgreSQL developer, the optimization of your SQL queries is a vital task that can greatly enhance the performance of your database. This is where the commands EXPLAIN and EXPLAIN ANALYZE come into play. They provide detailed insights into… Read More »Unleashing the Power of EXPLAIN in PostgreSQL
Database sharding is a powerful technique employed to manage large databases more effectively. It involves partitioning a large database into smaller, more manageable parts, known as shards. The term “shard” signifies a small fragment of a whole, aptly describing this method of breaking down a large database into smaller, more manageable pieces.
Processing of Normal Non-Prepared Statements Non-prepared statements, also known as direct SQL statements, involve SQL queries being written and sent to the database directly. The steps involved in processing a normal SQL statement are: This whole process is repeated each… Read More »How Does a Database Engine Process Prepared Statements Compared to Normal Statements, and Why Are Prepared Statements Faster
A view is a virtual table that is based on one or more tables, while a materialized view is a physical copy of a view that is stored on disk. Unlike views, materialized views can be indexed for faster access and can improve query performance in data-intensive environments.
A clustered index determines how data is physically stored in a table, while a non-clustered index is a separate structure that points to the data.
Partitioning a database entails splitting a large database into more manageable, smaller segments known as partitions. This segmentation is performed based on several strategies such as range, list, hash, and composite partitioning, each dictating the way data is divided. Let’s… Read More »What is the concept of partitioning in databases and its advantages?
Optimizing a database for a large-scale, high-transaction environment involves several strategies: Remember, each database and use case is unique, so these strategies should be applied as appropriate for your specific situation. It’s also a good idea to thoroughly test any… Read More »How to optimize a database for large-scale, high-transaction environment