On Mar 15, 12:44 pm, Eugene Anthony <solomon_13...@ yahoo.comwrote:
I have a table that has a DateTime column which uses a DataTime
datatype. How do I retrieve a range of records based on the month and
year using ms sql?
Eugene Anthony
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I've always hated this one. Searching for a date like that is pretty
simple but looking for a range can often times return unwanted
results. Though I don't know if it is right or not, I've done the
following before in the past:
SELECT *
FROM table
WHERE CONVERT(char(2) , DatePart(yy, table.datefield )) +
CONVERT(char(2) , DatePart(mm, table.datefield )) >= CONVERT(char(2) ,
DatePart(yy, BeginDate)) + CONVERT(char(2) , DatePart(mm, BeginDate))
AND CONVERT(char(2) , DatePart(yy, table.datefield )) + CONVERT(char(2) ,
DatePart(mm, table.datefield )) <= CONVERT(char(2) , DatePart(yy,
EndDate)) + CONVERT(char(2) , DatePart(mm, EndDate))
This way, if begin date is 1/1/07 and end date is today it will
evaluate between 0701 and 0703. The problem with the above is that
since you can't index it it needs to do a full table scan and if it is
a large table this can sometimes take some time. If that is the case
and you run this often you might want to add a computed field that
carries the converted date over and index that sucker.
I hope that helps.
Utah
