DBCC OUTPUTBUFFER (Transact-SQL)
Applies to: 
SQL Server
Azure SQL Managed Instance
Returns the current output buffer in hexadecimal and ASCII format for the specified session_id.
Transact-SQL syntax conventions
Syntax
DBCC OUTPUTBUFFER ( session_id [ , request_id ] )
[ WITH NO_INFOMSGS ]
Arguments
session_id
The session ID associated with each active primary connection.
request_id
The exact request (batch) to search for within the current session.
The following query returns request_id:
SELECT request_id
FROM sys.dm_exec_requests
WHERE session_id = @@spid;
WITH
Allows for options to be specified.
NO_INFOMSGS
Suppresses all informational messages that have severity levels from 0 through 10.
Remarks
DBCC OUTPUTBUFFER displays the results sent to the specified client (session_id). For processes that don't contain output streams, an error message is returned.
To show the statement executed that returned the results displayed by DBCC OUTPUTBUFFER, execute DBCC INPUTBUFFER.
Result sets
DBCC OUTPUTBUFFER returns the following (values may vary):
Output Buffer
------------------------------------------------------------------------
01fb8028: 04 00 01 5f 00 00 00 00 e3 1b 00 01 06 6d 00 61 ..._.........m.a
01fb8038: 00 73 00 74 00 65 00 72 00 06 6d 00 61 00 73 00 .s.t.e.r..m.a.s.
'...'
01fb8218: 04 17 00 00 00 00 00 d1 04 18 00 00 00 00 00 d1 ................
01fb8228: .
(33 row(s) affected)
DBCC execution completed. If DBCC printed error messages, contact your system administrator.
Permissions
Requires membership in the sysadmin fixed server role.
Examples
The following example returns current output buffer information for an assumed session ID of 52.
DBCC OUTPUTBUFFER (52);