how to check FromDate between two dates when ToDate is null

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hi,

for my banking application i have a table called SCHEME

in that Scheme table i have fields as

From_date , To_date

from page i will insert only the From_date only , then To_date is stored as NULL in the table.

here i want to check From_date between From_date and To_date.

i written the following query but due to To_date is null the condition is fail.

SQL

SET @X_Valid =(SELECT COUNT(*) FROM scheme_valid
WHERE ( @From_Date between From_Date and To_Date
        or  @To_Date between From_Date and To_Date
        or  From_Date between @From_Date and @To_Date
        or  To_Date between @From_Date and @To_Date
      )                       
AND   Scheme_ID=@L_id)

Posted 17-Oct-12 3:53am

sk. maqdoom ali

Updated 17-Oct-12 3:57am

fjdiewornncalwe

v2

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OriginalGriff · Answer 1 · 2012-10-17T04:03:00

Solution 1

Check for

SQL

NOT IsNull(To_date) AND (...)

Posted 17-Oct-12 4:03am

OriginalGriff

manak chand · Answer 2 · 2012-10-17T04:03:00

Solution 2

Try this code..

SQL

SET @X_Valid =(SELECT COUNT(*) FROM scheme_valid
WHERE   ((From_Date >= @From_Date) or (@From_Date IS NULL)
        AND
        (To_Date <= @To_Date) or (@To_Date IS NULL))
        AND   Scheme_ID=@L_id)

please rate answer if it is useful...

Posted 17-Oct-12 4:03am

manak chand