Question

Am using Sql Server 2008, I have a column named Date in my table, and I want to get the datas for the particular date…. I need to give this Date in my WHERE condition.

for example, if I want to get the records for the particular month in the given date, how can I use this Date in WHERE condition.

DATANAME(MONTH,'@Date') 

if I give like this in my query I can get the month from the given DATE, the same way I tried by putting in WHERE condition like,

WHERE DATE=    DATANAME(MONTH,'@Date')

here it reports conversion error…how can I display the datas for a particular month, can anyone help me

Answer 1

If you want a month of data for a table you should check against an interval. The query is not able to use indexes on the date column if you are applying functions on the column.

Use something like this to get data for April 2012.

-- The date parameter
declare @Date datetime
set @Date = '2012-04-11'

declare @FromDate datetime
declare @ToDate datetime

-- set FromFate to first of april
set @FromDate = dateadd(month, datediff(month, 0, @Date), 0)
-- set ToDate to first of may
set @ToDate = dateadd(month, 1+datediff(month, 0, @Date), 0)

select *
from YourTable
where [Date] >= @FromDate and [Date] < @ToDate