Before you can use Oracle SQL Developer or MySQL Workbench, you need to connect to a database server. Both tools support various types of connections, such as JDBC, ODBC, SSH, or cloud services.

Read: How to install Oracle Database on Windows 11 How do I keep Oracle SQL Developer connection alive? To keep your Oracle SQL Developer connection alive, you can use a keepalive extension that ...

For example, Microsoft's SQL Server has an "Exists" keyword allowing you to easily check to see if a record exists; Oracle's SQL does not have this feature, but you can work around the shortcoming ...