The path and filename to the tnsnames.ora file from which connection information is retrieved. The tnsnames.ora file contains connection information that is mapped to Oracle net service names. Using a tnsnames.ora file to centralize connection information simplifies maintenance when changes occur.
Valid values
string
where:
string
is a valid path to and file name of a tnsnames.ora file.
Behavior
If you specify this property, you also must specify the TNSServerName property.
Notes
If this property is specified, do not specify the following properties to prevent connection information conflicts:
AlternateServers
FailoverMode
LDAPDistinguishedName
LoadBalancing
PortNumber
SDUSize
ServerName
ServerType
ServiceName
SID
If any of these properties are specified in addition to this property, the driver throws an exception.