It depends on 'what breed/type' of database you want to connect to - for example, for Oracle, you need to install OCI Version 8 (at least), then as you code suggests, use SA_Oracle_Client in the connection. SqlAPI then will use the correct Oracle driver. See here https://www.sqlapi.com/ApiDoc/servers/
] for other database breeds.
As Afzaal Ahmad Zeeshan asked you, you dont really state what the problem is, so your question is a bit broad for a finer level of detail answer - you can use the green 'Improve question' widget to edit the question and supply more information