How to convert string field to datetime in Reporting Services?

I am pulling data from a database whose field is not in the bes format.

Specifically, it is in this text format although it should be a datetime...

[year][month][day]

20070305 for 2007, 3rd month, 5 day.

How do I convert it to a date or datetime field for display in Reporting Services?
LVL 2
M3hcSSAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

chrismcCommented:
Ideally you'd do this from SQL. Convert(DateTime, myDate) will probably do it. Then it would be a true datetime field and formatting would then be automatic to your location, i.e. US = m d y, almost everywhere else = dd mm yy.

You can use "Substring" in SQL or "Mid" in VB to extract parts of the string and reformat it the way you want.
The most universal format for storing dates is yyyy-mm-dd. If you can get it in this format then date functions and formatting will work properly.

Cheers
Chris
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
YurichCommented:
copletely agree with Chris that you should do it on the SQL side whenever it's possible, but in the case you have to do it in your report (you got no access to your SP, or no rights, or whatever), here is the formula:

=Format( CDate( Left( Parameters!param.Value, 4 ) & "/" &
 Mid( Parameters!param.Value, 5, 2 ) & "/" &
 Right( Parameters!param.Value, 2 )), "yyyy/MM/dd" )

Parameter!param.Value is your "20050305" string, you can change it to your field name. By default CDate will produce date time in the format yyyy-MM-dd HH:mm:ss, so I used Format as well, just to have date part.

Good luck,
Yurich
0
M3hcSSAuthor Commented:
Both these solutions work very well.

However, the second solution posted by Yurich requires fixed-width fields; if the date is missing, say, leading zeroes then it won't work.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
DB Reporting Tools

From novice to tech pro — start learning today.