For years, software developers were the unquestioned architects of the digital world. But now, AI can write full applications, debug errors, generate…
The role of an Oracle DBA has evolved dramatically over the last decade. Traditionally, DBAs were responsible for installation, configuration, backups, performance…
Oracle’s transaction management and read consistency mechanisms are fundamental to maintaining data integrity in multi-user environments. Understanding how Oracle handles concurrent transactions,…
When you execute ROLLBACK;, Oracle discards all uncommitted changes and restores data to its previous state. Understanding ROLLBACK is essential for transaction…
When you execute COMMIT;, Oracle makes all your DML changes permanent. This seemingly simple statement triggers a complex series of operations involving…
When you execute DELETE FROM employees WHERE employee_id = 101;, Oracle performs a complex series of operations involving row location, undo generation,…
When you execute UPDATE employees SET salary = 60000 WHERE employee_id = 101;, Oracle performs a sophisticated series of operations involving undo…
When you execute a simple INSERT INTO employees VALUES (101, 'John', 'Doe', 50000); statement, Oracle performs a complex series of operations involving…
When you execute a simple SELECT * FROM employees WHERE department_id = 10; query, have you ever wondered what happens behind the…
