Hi Lars,
the SLD settings are unchanged, you still can find the SLD parameters in "/com.sap.b1i.system.sld.directory/SysId.xml/<yourSysID>(Id)".
Maybe your chosen sysid '0010000101' just does not contain Connectivity type JDBC. Could you please check?
The (id) isn't visible in the Bizstore via WEBDav as it's no xml file, but you can access it via Control Center -> Development -> X-Edit.
Here you can also check which parameters are included in your chosen SysID.
Best regards
Bastian