Below is SQL to query for the full text of the subscription parameters. I think this will work with extremely long address lists, but I don't have a test server with long address lists available right now.
If using this in production, I'd probably throw in a couple of WITH ( NOLOCK )
's and wouldn't expect support from MS on problems.
;
WITH subscriptionXmL
AS (
SELECT
SubscriptionID ,
OwnerID ,
Report_OID ,
Locale ,
InactiveFlags ,
ExtensionSettings ,
CONVERT(XML, ExtensionSettings) AS ExtensionSettingsXML ,
ModifiedByID ,
ModifiedDate ,
Description ,
LastStatus ,
EventType ,
MatchData ,
LastRunTime ,
Parameters ,
DeliveryExtension ,
Version
FROM
ReportServer.dbo.Subscriptions
),
-- Get the settings as pairs
SettingsCTE
AS (
SELECT
SubscriptionID ,
ExtensionSettings ,
-- include other fields if you need them.
ISNULL(Settings.value('(./*:Name/text())[1]', 'nvarchar(1024)'),
'Value') AS SettingName ,
Settings.value('(./*:Value/text())[1]', 'nvarchar(max)') AS SettingValue
FROM
subscriptionXmL
CROSS APPLY subscriptionXmL.ExtensionSettingsXML.nodes('//*:ParameterValue') Queries ( Settings )
)
SELECT
*
FROM
SettingsCTE
WHERE
settingName IN ( 'TO', 'CC', 'BCC' )