USE [msdb]
GO

DECLARE @owner_login_name AS NVARCHAR(100)
SET     @owner_login_name = ORIGINAL_LOGIN()

SELECT
       'EXEC msdb.dbo.sp_update_job @job_id = N''' + CAST(a.job_id AS NVARCHAR(MAX)) + ''', @owner_login_name = ''' + @owner_login_name + ''';'    --> changeJobOwner
      ,'EXEC dbo.sp_update_schedule @schedule_id = ''' + CAST(a.schedule_id AS NVARCHAR(MAX)) + ''', @owner_login_name = ''' + @owner_login_name + ''';'  --> changeShedOwner
    --, a.job_id 'jobId'
      ,a.schedule_id AS 'shedId'
      ,b.[name]      AS 'jobName'
      ,c.[name]      AS 'shedName'
      ,e.[name]      AS 'jobOwner'
      ,d.[name]      AS 'shedOwnerName'

FROM [dbo].[sysjobschedules]    a
     JOIN [dbo].[sysjobs]       b ON a.job_id      = b.job_id
LEFT JOIN [dbo].[sysschedules]  c ON a.schedule_id = c.schedule_id
LEFT JOIN sys.syslogins         d ON c.owner_sid   = d.sid
LEFT JOIN sys.syslogins         e ON b.owner_sid   = e.sid