Avoiding the use of the “OR” operator in MariaDB can help improve query performance by reducing the number of rows that need to be scanned and filtered. Here are some strategies to avoid using “OR” […]
Using the OR operator in a SQL query can result in poor performance, especially when used in combination with other operators, such as LIKE, IN, and subqueries. In PostgreSQL, there are several techniques that can […]
In MySQL 8, invisible indexes are a feature that allows you to create an index without it being used by the optimizer. This can be useful in situations where you want to test the impact […]
Introduction In InnoDB, a linear tree is a type of data structure used for indexing and searching data. Linear trees are also known as B+ trees. The key characteristic of a linear tree is that […]
The MySQL Slow Query Log is a feature that logs SQL statements that exceed a certain threshold of execution time. This log can be used to identify slow queries and to optimize their performance. Here […]
Partitioned Bitmaps are a technique used to speed up queries on large databases by breaking them down into smaller pieces, or partitions, that can be searched independently. PostgreSQL supports Partitioned Bitmaps through the use of […]
The BgWriter process in PostgreSQL is responsible for flushing dirty pages from the shared buffer pool to disk. As such, it is a critical component of the database system and it is important to monitor […]
UPDATE latency refers to the time taken by PostgreSQL to perform an UPDATE operation on a table. Slow UPDATE operations can negatively impact the overall performance of the database. Here are some steps to troubleshoot […]
SQL Firewall is a security solution that provides protection against SQL injection attacks by filtering and blocking potentially harmful SQL statements. In PostgreSQL, the pgBouncer connection pooler can be used as an SQL Firewall. To […]
Declarative partitioning is a feature in PostgreSQL that allows you to define partitions for a table in a declarative manner, without having to use inheritance. With declarative partitioning, you can define partitioning rules using the […]
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