Ms Access Datevalue Error
Contents |
Community Links Social Groups Pictures & Albums Members List Calendar Search Forums Show Threads Show Posts Tag Search Advanced Search Find All Thanked Posts Go to Page... Thread Tools Rating: Display Modes 04-23-2010, 08:12 AM #1 BrokenBiker ManicMechanic datevalue in access query Join Date: Mar 2006 Location: Not where I should... Posts: 128 Thanks: 0 Thanked 0 ms access datevalue data type mismatch Times in 0 Posts Null Date Value and String vs Date and #Error I have a query w/a calculated filed (TngDue). Some of those records
Ms Access Convert String To Date
have no date. When I use CDate to convert the TngDue field to a date format, the records w/o date entries give me an #Error. I've tried to use IIf and IsNull to get rid of the #Errors and still
Ms Access Dateserial
maintain a date format, but am so far unsuccessful. Code: TngDueDate: IIf(IsNull([TngDue]),"",CDate([TngDue])) It seems that if I try to handle the null values to get rid of the #Errors, I have to live w/a text string. If I want a date value, I'll have to live w/the #Errors. Is there any way to handle null values w/a date field and still have the result as a date as opposed to a string? BrokenBiker View Public Profile Find More Posts by BrokenBiker date functions access 04-23-2010, 03:36 PM #2 Galaxiom Super Moderator Join Date: Jan 2009 Location: NSW Australia Posts: 10,265 Thanks: 52 Thanked 1,174 Times in 1,111 Posts Re: Null Date Value and String vs Date and #Error The Null string is not valid in a date field. TngDueDate: IIf(IsNull([TngDue]),Null,CDate([TngDue])) Galaxiom View Public Profile Find More Posts by Galaxiom 04-23-2010, 06:47 PM #3 BrokenBiker ManicMechanic Join Date: Mar 2006 Location: Not where I should... Posts: 128 Thanks: 0 Thanked 0 Times in 0 Posts Re: Null Date Value and String vs Date and #Error Thanks for the reply, but that gave me the same #Error. Is there a way to use the IsDate fx? Possibly If Not (IsDate(TngDue)...etc....? I'll give it a shot and see what it does. BrokenBiker View Public Profile Find More Posts by BrokenBiker 04-24-2010, 05:18 AM #4 BrokenBiker ManicMechanic Join Date: Mar 2006 Location: Not where I should... Posts: 128 Thanks: 0 Thanked 0 Times in 0 Posts Re: Null Date Value and String vs Date and #Error Yep, that did it! TngDueDate: IIf(Not IsDate([TngDue]),Null,CDate([TngDue])) BrokenBiker View Public Profile Find More Posts by BrokenBiker 04-25-2010, 02:31 AM #5 Galaxiom Super Moderator Join Date: Jan 2009 Location: NSW Australia Posts: 10,265 Thanks: 52 Thanked 1,174 Times in 1,111 Posts Re: Null Date Value and Strin
to extract just the date in order to do further date calculations. I created a calculated field using DateValue - but if the field does not have a date, it returns #Error. So, I changed it to the following: IIF([field] is
Ms Access Null Date Value
null,"",DateValue([field])) - this leaves out the error but now changes all the dates to text. timevalue access A workaround is to have it enter a 0 rather than leaving it blank, but then that enters the value of 12:00:00 am. Any cdate access other suggestions of how not to have the error display but prevent the dates from changing to text? -- maryj Guest, Dec 9, 2005 #1 Advertisements Allen Browne Guest The zero-length string is the problem: that forces Access to http://www.access-programmers.co.uk/forums/showthread.php?t=191989 treat the value as text. Instead, use Null. And wrap the expression in CVDate() to ensure it is understood as a date: CVDate(IIF([field] is Null, Null, DateValue([field]))) You could also use Fix() to lose the time component: CVDate(Fix([field])) -- Allen Browne - Microsoft MVP. Perth, Western Australia. Tips for Access users - http://allenbrowne.com/tips.html Reply to group, rather than allenbrowne at mvps dot org. "maryj" <> wrote in message news:... >I have a date/time field. I need to extract just the http://www.pcreview.co.uk/threads/datevalue-returning-error.2282035/ date in order to do > further date calculations. I created a calculated field using DateValue - > but > if the field does not have a date, it returns #Error. So, I changed it to > the > following: IIF([field] is null,"",DateValue([field])) - this leaves out > the > error but now changes all the dates to text. A workaround is to have it > enter > a 0 rather than leaving it blank, but then that enters the value of > 12:00:00 > am. Any other suggestions of how not to have the error display but prevent > the dates from changing to text? > -- > maryj Allen Browne, Dec 9, 2005 #2 Advertisements Guest Guest A huge thank you!! That should do it! -- maryj "Allen Browne" wrote: > The zero-length string is the problem: that forces Access to treat the value > as text. > > Instead, use Null. And wrap the expression in CVDate() to ensure it is > understood as a date: > CVDate(IIF([field] is Null, Null, DateValue([field]))) > > You could also use Fix() to lose the time component: > CVDate(Fix([field])) > > -- > Allen Browne - Microsoft MVP. Perth, Western Australia. > Tips for Access users - http://allenbrowne.com/tips.html > Reply to group, rather than allenbrowne at mvps dot org. > > "maryj" <> wrote in message > news:... > >I have a date/time field. I ne
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About http://stackoverflow.com/questions/26519337/date-error-handling-in-access-sql Us Learn more about Stack Overflow the company Business Learn more about hiring http://stackoverflow.com/questions/15092919/data-type-mismatch-in-criterion-expression-for-datevalue-function developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up date error handling in Access SQL ms access up vote 1 down vote favorite I have a table x with the following values of type Text: +-----------+ | dateValue | +-----------+ | 12/9/1906 | | 7/49/54 | | 27945 | +-----------+ I want to query this table and return the date equivalent of each string, or the original string and an error indicator if the string cannot be parsed to a date. I tried ms access datevalue this: select iif(isError(cdate(dateValue)),dateValue&" isError",cdate(dateValue)) as parseDate from x which should return 7/49/54 isError for the invalid string, but that query instead returns: +-----------+ | parseDate | +-----------+ | 12/9/1906 | | #Error | | 7/4/1976 | +-----------+ Is there any way to handle the invalid date string to return the desired result? EDIT: added the cdate() parse in the query. sql ms-access share|improve this question asked Oct 23 '14 at 0:23 sigil 3,5241362112 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote I would use IsDate() function instead of IsError() because CDate() would throw an #Error if argument is not a valid date expression. Try this one: select iif(IsDate(dateValue), cdate(dateValue), dateValue & " isError") as parseDate from x share|improve this answer answered Oct 23 '14 at 4:51 mdialogo 1489 This doesn't parse the 27945 value correctly; I had to use this for the conditional check instead: isdate(dateValue) or isnumeric(dateValue) –sigil Oct 23 '14 at 21:59 add a comment| up vote 0 down vote You are trying to mix types. You have a string in one row and a date in another. That isn't possible. You could do: select iif(isError(cdate(dateValue)),date
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up data type mismatch in criterion expression for DateValue function up vote 1 down vote favorite I have a query that bases its selection on a date field. The problem is that this date field is sometimes null and so just checking for null using 'and not null' won't work. Here is what I have developed: SELECT DISTINCT WS_ALL_OBJ.[Owner ID], Users.CHARGE_UNIT, WS_ALL_OBJ.[Owner Name] FROM WS_ALL_OBJ LEFT JOIN Users ON WS_ALL_OBJ.[Owner ID] = Users.CNAME WHERE (IIF(IsNull(WS_ALL_OBJ.[Last Modified]), DateValue('2050-12-01'), DateValue(Left(WS_ALL_OBJ.[Last Modified], 10))) < #2012-11-26# And (Users.CHARGE_UNIT <> 'CQ')) GROUP BY WS_ALL_OBJ.[Owner ID], Users.CHARGE_UNIT, WS_ALL_OBJ.[Owner Name]; When running this query it throws a 'Data type mismatch in criterion expression' error message. I have narrowed it down to this line of code - DateValue(Left(WS_ALL_OBJ.[Last Modified], 10)) because if I substitute this - DateValue('2011-11-26') - it works just fine. At first I thought it was because there are null values in my Last Modified field which is why I came up with this - (IIF(IsNull(WS_ALL_OBJ.[Last Modified]), DateValue('2050-12-01'), DateValue(Left(WS_ALL_OBJ.[Last Modified], 10))) < #2012-11-26# Shouldn't that solve the problem of nulls? The other possibility is that the string coming from Left() is not in the right format. The reason I think this is that this - DateValue('2011-11026') - (the wrong format) will also through the Data Type Mismatch exception. However, this is what all the data looks like: 2008-01-18 13:10:54 CST It is stored as a 'Text' field and comes from a linked csv file. The Left() function should take the first 10 characters and pass to DateValue() I am at a loss and appreciate any help. Update: I have also tried cdate(Left(WS_ALL_OBJ.[