How can i calculate with Time?
I want zu Calculate the Time between 2 Timestamps, which are entered in textboxes..
No button needed; just use as ControlSource for the third textbox:
=CDate([Time2]-[Time1])
Then set the Format property of that textbox to a time format, for example:
h:nn
Use the DateDiff() function to specify the date/time values and the unit that you want the result returned in.
Related
I have database with a MariaDB backend and a MS-Access frontend. I have a table with a column with the data type set to "time(6)". In my backend, the column only shows time-values between 00:00 and 23:59. There are no dates in that column.
However, when I open the (linked) table in my Access frontend, it shows date AND time in that column. It always shows the current date and the time value from the backend-table. So if the actual value in the field is "16:25", Access will show "07.02.2023 16:25" (current date in German date format).
I have a form in Access where one can edit the data for a specific recordset. In that form there is also a textbox for the time value. When the textbox is not selected, it will show the correct time (e.g. 16:25). However, as soon as I click into the textbox to edit the time, it will suddenly show date and time (e.g. 07.02.2023 16:25). The format of that textbox is set to "Time, 24h" though.
How can I make the textbox show only the time without date, even when the textbox is selected? Why does my Access frontend interpret the time value as a datetime value?
If I set the property "Show Date picker" of that textbox to "For dates", it will show the date picker after selecting the textbox, despite the fact that the format is set to "Time, 24h". This doesn't make sense to me. Any ideas? Thank you!
I updated the ODBC connection to the table several times, but in my frontend there are still datetime values in the column that should only have time values.
Why does my Access frontend interpret the time value as a datetime
value?
That's by design as Access doesn't have discrete data types for date and time.
You can easily read the time only:
=TimeValue([YourTimeField])
An edit can be done in an unbound textbox. Use the AfterUpdate event of this to write the edited time.
Also, see my article:
Entering 24-hour time with input mask and full validation in Microsoft Access.
I added the following field in a query:
IIf(Date()<[NextQDue],"Less","Greater")
The field NextQDue was created in a different query and formatted as Short Date. The value in NextQDue is 12/20/2018. Today's date is 1/1/2019. The query spits out "Less" when it should spit out "Greater." If I change the statement to Date()>[NextQDue] it spits out "Greater" when it should say "Less." I cannot figure this out. I believe I've formatted dates correctly, but nothing is working.
Always handle dates as Date, not text, not numbers, no exceptions.
So, adjust your query and change NextQDue to return a true date value.
If you need to display the value of NextQDue somewhere else, apply the format to the control displaying it.
In the Access, i tried to run the query that showing the payroll data between two date. Currently, I need to type two date at the input box. However, I want to use date picker to pick two date to generate the same result. Anyone tell me how to do it?
So I'm pulling data from an external source which returns Date strings of the given format: "10/26/2013 9:46:46 AM"
When I sort the data it does not seem to be able to distinguish between AM and PM values so many noonish / 1 AM values are moved towards the bottom. Has anyone dealt with this before / have a solution to make it recognize the AM/PM aspect along with the day and time?
Thanks
It looks like it is sorting this as text. It may depend on how the data is getting pulled through.
If you select one of the cells and press F2 (to edit) then enter to go to the next cell, does this change your data?
In the code that is pulling the data through, you just need to amend it slightly.
Range("D5").value = string
It may change it slightly to maybe 24 hour time depending on your computer settings
I ended up just splitting the date and time using TimeValue() and DateValue() excel functions.I then wrote a macro to do a 3 key sort based on ticker, date, and then time.
I have a few user controls I made in wpf that are driven by two datepickers. One picker controls the begin of the date range and the other one controls the end of the date range.
I had issues with the datepicker.selecteddate property giving me the time along with the date and then my sql results were not all there because the passed in time value filtered out a lot of my results. I ended up finding that if I formatted that time to midnight then my results were all there, but every time I picked a new selection in the datepicker it would reset the formatted time.
After some testing I found that I can just pass the value of the datepicker text property as the parameter. This property's value is a string type and is set to the date value of the current selected date (ex: 3/14/2012 5:00:32 AM is selected date then '3/14/2012' is the text value).
So far, surprisingly, this seems to return all my results I wanted.
I was wondering about why this actually works (is it b/c the 'mdy' literal format is supported and the default?), and if there is any negative drawbacks to doing what i'm doing? I know a lot of times just because something works doesn't mean you should use it in production. I share the tables with others or I would just convert the datetime fields and parameters to date and be done.
I hope my question makes sense. Sometimes they don't. If there are questions leave comments and i'll chime in.
As far as negative drawbacks, I cannot see any - this is how we handle it throughout many apps/DBs. However, the way I typically handle it is if the record being added doesn't need the time (i.e. BusinessDate, LoadDate) then I add the record with the only the Date and no time - so the value is always in the format 3/14/2012 12:00:00 AM which I think makes querying significantly easier since you don't have to deal with the time
Then in my UI (winforms) when performing a search on the date with a datetimepicker I use the datetimepicker.Value.Date which gives the date in a similar format (3/14/2012 12:00:00 AM).
If you have a field in a table that needs a datetime, then use it and you can search the date by either formatting the date in the table or using date > yourdate AND date <= yourdate which would include the date you are searching.