Hi DesmondLimSS-2550,
Is it still relevant if both the application and the SQL Server are in the intranet ?
Do you mean the application and the SQL Server are in the intranet and in the same host?
If so, I think SSL encrypted connection is not very necessary as Olaf mentioned.
If the application and the SQL Server are in the intranet and in the different server, I think it is better to enable encrypted connection. SSL can prevent unwanted sensitive data leak, or exclude the possibility for any SQL injection attack, and a network packet sniffer cannot read the data. Please refer to this thread which might help.
Best Regards,
Amelia
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