OracleViews in Oracle
Views are a very useful resource in relational databases: they let you create logical representations of the data stored in…
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…
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…
OCIHow to upload a SQL Server backup to an OCI bucket.
Backup safety is one of the main pillars of database administration. Keeping an external copy guarantees data recovery in case…