What is the best way to connect SQL databases and why?

Focus on the various methods available for connecting SQL databases, such as using JDBC, ODBC, or REST APIs. Discuss the pros and cons of each method in terms of performance, scalability, and ease of integration. Be prepared to explain your reasoning for choosing one method over the others, considering factors like the specific use case, the types of databases involved, and the development environment. Additionally, mention any security considerations or best practices for maintaining data integrity during the connection process.