Client unable to establish connection because an error was encountered during handshakes before login. Common causes include client attempting to connect to an unsupported version of SQL Server, server too busy to accept new connections or a resource limitation (memory or maximum allowed connections) on the server.위의 오류의 원인은 다양합니다.저 같은 경우는 DBlink로 외부 DB 연결까지는 성공했는데 Select나 Insert를 해보려고하니 해당 오류가 ..