OCIOracle Cloud DBCS: backup failure with ORA-28361 on a new PDB without a master key (OPEN_NO_MASTER_KEY)
While migrating a Pluggable Database (PDB) from an on-premise source environment to Oracle Cloud DBCS, we identified a failure during…
OracleHow to use hints in Oracle?
The super dictionary of Oracle hints When you work with Oracle, an important part of optimizing SQL query performance is…
OracleHow to create an Oracle 19c database in silent mode
Creating a single instance CDB database in silent mode After installing the database management system (DBMS), the next step is…
DatabasesThe CAP theorem
The CAP theorem (also known as Brewer’s theorem) is one of the key concepts in distributed systems. It was proposed…
OCIMySQL Migration: How to Migrate from AWS Amazon Aurora MySQL to OCI HeatWave MySQL with Minimal Downtime
In this article, we will demonstrate, clearly and practically, how to perform a MySQL database migration with minimal downtime. For…
SQL ServerHow to enable the slow query log in SQL Server?
How to capture slow queries in SQL Server? If you come from the MySQL, PostgreSQL or even Oracle world, you…
DatabasesWhat is a database?
Introduction to databases: the heart of the digital era
OracleHow to install Oracle Database 19c on Oracle Linux
Oracle Database 19c on Oracle Linux 7.9 in silent mode To install Oracle Database 19c, the operating system must be…
PostgreSQLUnderstanding the execution plan in PostgreSQL: how to improve the performance of your SQL queries, part 2
Continuing with part 2 of our article on execution plans, we will look at how to analyze and interpret an…
OracleUnderstanding the execution plan in Oracle: how to improve your SQL query performance (part 1)
The power of SQL and the performance challenge One of the great advantages of SQL is its declarative nature. That…