InnoDB, the default storage engine in MySQL, uses a buffer pool to manage the reading and writing of data blocks. The buffer pool is a cache that holds frequently accessed data pages in memory, reducing […]
That’s great news! PostgreSQL 15 brings new enhancements to handle JSON data more efficiently. Some of the SQL/JSON patches committed to PostgreSQL 15 include: These enhancements in PostgreSQL 15 further extend the capabilities of SQL/JSON […]
Once upon a time, in the fast-paced world of global corporations, a new era of data-driven decision-making was taking shape. As businesses faced increasing pressure to manage vast amounts of data, they realized the need […]
Introduction: In the digital age, businesses cannot afford to overlook the importance of disaster recovery. With increasing reliance on data, system outages or data loss can have catastrophic consequences, leading to significant disruptions and financial […]
Isolation levels in PostgreSQL play a crucial role in ensuring the consistency, performance, and scalability of your applications. By understanding and selecting the appropriate isolation level, you can develop optimal and scalable PostgreSQL-based applications. Let’s […]
In MySQL, operators in a query execution plan can be classified as streaming or blocking based on how they process and propagate rows during query execution. Let’s explore the differences between streaming and blocking operators […]
Troubleshooting redo performance in InnoDB involves identifying and addressing potential bottlenecks or issues that affect the efficiency of redo log processing. The redo log plays a critical role in ensuring data durability and crash recovery […]
Scalar subquery unnesting is a transformation technique used by the MySQL optimizer to optimize queries that involve scalar subqueries. Scalar subqueries are subqueries that return a single value, typically used in expressions or as part […]
In MySQL, you can use query hints to provide suggestions or directives to the query optimizer about how to generate the execution plan for a specific query. Query hints allow you to have more control […]
In PostgreSQL, you can gather statistics only when they are stale by utilizing the pg_stat_statements extension and the track_activity_query_size configuration parameter. Here’s how you can achieve this: CREATE EXTENSION pg_stat_statements; 3. Query the pg_stat_statements View: […]
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