Ето шаблона:
<connectionStrings>
<add name="{ConnectionName}"
connectionString="Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=MyHost)(PORT=MyPort)))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=MyOracleSID)));User Id=myUsername;Password=myPassword;"
providerName="Oracle.DataAccess.Client"/>
</connectionStrings>
Ето едно от моите - без истинско TNS име и потребителско име и парола:
<add name="MSOL" connectionString="Data Source={TNS_NAME};User ID={username};Password={password};pooling=true;min pool size=5;Max Pool Size=60" providerName="Oracle.DataAccess.Client"/>