Hello, thank you very much for the help, I managed to get what I expected

Yes, in the healthshare environment I am running the following script:

SELECT 
    id, 
    substr(TimeCreated, 12, 5) as HORA, 
    (DATEDIFF(ms, TimeCreated, TimeProcessed)) as TiempoTranscurrido ,
    TimeCreated as fecha,
    GETDATE() as hora_actual
FROM 
    ens.messageheader 
WHERE 
    SourceConfigName = 'HL7Filler HCIS'
    AND TimeCreated >= '2024-03-19 12:51:11.125'

I would like that in exchange for entering the exact time I could obtain it in the format, I have tried with the following script but it brings me the messages for that exact time and I need to bring all the logs in that time period "2 hours"

SELECT 
    id, 
    substr(TimeCreated, 12, 5) as HORA, 
    (DATEDIFF(ms, TimeCreated, TimeProcessed)) as TiempoTranscurrido ,
    TimeCreated as fecha,
    GETDATE() as hora_actual
FROM 
    ens.messageheader 
WHERE 
    SourceConfigName = 'HL7Filler HCIS'
    AND TimeCreated >= DATEADD(hour, -2, GETDATE())