[SOLVED] properly filtering Dates in SQL

properly filtering Dates in SQL

I am trying to execute my query but to only pull the dates for 2020, when I add a DatePart (Year, 2020) I do not get any results, although there are 2020 results. The format of the data from the system is YEAR-MONTH-DAY HR:MIN:SEC:SEC. can anyone direct me where I am going wrong?

SELECT   CV3ClientVisit.ClientDisplayName, CV3ClientVisit.CurrentLocation, CV3ClientVisit.IDCode, CV3ClientVisit.VisitStatus, CV3Order.Name, CV3ClientVisit.TypeCode, 
                     CV3User.DisplayName AS [Performed By], CV3OrderTaskOccurrence.PerformedFromDtm AS [Performed When], CV3OrderTaskOccurrence.TouchedBy AS [Cosigned By], 
                     CV3OrderTaskOccurrence.TouchedWhen AS [Cosigned When]
FROM         CV3Client INNER JOIN
                     CV3TaskSignature ON CV3Client.GUID = CV3TaskSignature.ClientGUID INNER JOIN
                     CV3ClientVisit INNER JOIN
                     CV3Order ON CV3ClientVisit.GUID = CV3Order.ClientVisitGUID INNER JOIN
                     CV3OrderTaskOccurrence ON CV3Order.GUID = CV3OrderTaskOccurrence.OrderGUID INNER JOIN
                     CV3TaskStatusHistory ON CV3OrderTaskOccurrence.GUID = CV3TaskStatusHistory.OrderTaskOccurrenceGUID ON CV3Client.GUID = CV3Order.ClientGUID INNER JOIN
                     CV3User ON CV3OrderTaskOccurrence.PerformedProviderGUID = CV3User.GUID
WHERE     (CV3ClientVisit.TypeCode = 'Inpatient Admit') AND (CV3Order.Name = 'insulin lispro sliding scale injectable') AND (CV3ClientVisit.VisitStatus = 'ADM') AND 
                     (CV3OrderTaskOccurrence.TouchedWhen = DATEPART(YEAR, 2020))

Solution

If touchedwhen is a date/time, then use something like this:

(CV3OrderTaskOccurrence.TouchedWhen >= '2020-01-01' and
 CV3OrderTaskOccurrence.TouchedWhen < '2021-01-01' 
)

Actually, this will also work if the value is stored as a string, but I strongly recommend that you store values using correct data types.