Querying An Empty Date Field With IsNull Problem

Jun 15, 2005

I am using the QBE grid and am writing a select query to select only records with an empty Date Closed Field. The Date Closed field is a Date/Time Field. I am using Access 2003. When I use in the criteria IsNull([DateClosed]) I do not get any records selected which have an empty Date Closed field, have I a bug? and if so please could anyone point me in the right direction.

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Querying Time Stamped Date Field

Sep 2, 2007

Hi,

I use a query to return values between two dates, here's the code I use:

Between [Select Start Date:] And [Select End Date:]

However because my dates are time stamped (they need to be!) the query omits anything on the end date, for example:

Between [01/09/2007] And [05/09/2007] will return values for the 1st, 2nd, 3rd, 4th but not the 5th - because (I think I'm right in thinking this but I might not be!) it only returns values upto midnight on the 4th? so 05/09/2007 13.42pm won't show up because it's after 11.59 on the 4th.

I can't ask people to enter in an extra day because quite alot of people who use our database won't remember and it'll cause alot of problems when they forget and get the wrong figures.

I've tried adding the following:
" & "11:59:59""

onto the code but Access says the expression is typed wrong or is too complicated to be evaluated.

Does anyone know how to fix this code please??

thank you for your time

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Aug 25, 2014

I have a db tracking vacation times for staff. One of the fields tracks a members vacation start and end dates. I need a way to pull a report to see who is on vacation based on Date() (today).

For example:

A record for John Doe has him start vacation 08/19/2014 and end vacation on 8/28/2014. If I wanted a report that shows who is on vacation today, 08/25/2014, using the date() function), how would I do this?

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Mar 5, 2013

To prevent duplicate records, I use multiple fields indexes, which worked fine until now. I learned that each "empty" fields are consider unique by Access, so not the best in an index to prevent duplicate records. I managed to have it worked using the default value property to give each "empty" records the same value.

Now my problem is that I have a date field which is optional, but I need to use it as a unique identifier in an index. I could again use a default value, but since it has to be a date, I find it confusing. I would rather have a default value of "No date specified" or "-" or even better, "". Unfortunately none of those works with date fields.

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Aug 20, 2014

When user enter the data other than date field or when date field remain empty and user press the Add button, it is giving error.

(Error 3075)

Syntax Error in date in query expression '#'.

while same code is working for text field. but it is not working for date field.

If (Me.rdate) = "" Then

Exit Sub

End If

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Sep 26, 2007

I am trying to put together a quick database for my HR team. I need to be able to pull multiple date ranges to show which employees are up for an annual, 6 month and 90 day review.

Is it even possible to put multiple date ranges in one query, or is this going to get complicated? I have no real database background, and know absolutely no SQL so I'm flyin by the seat of my pants here...

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Apr 21, 2008

During a client's stay with our agency, they are served among multiple contracts and are placed within multiple programs. Because clients move frequently between contracts and between programs, we have separate tables which have start and end date fields. It is common for any client to have multiple listings in these two tables, but with different event dates.

I am struggling to create a query that will capture each client's most CURRENT contract AND program. In the future, I'll want to create a parameter query that will allow the end user to enter a range of dates and capture all of the contract and program movement during a period of time.

Any suggestions?

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Jan 2, 2006

I am working on a query form, in which user can enter three parameters: date range (datefrom field, and dateto field), 1st selection of category (a drop-down menu, multi-selection enhanced), 2nd selection of category (a drop-down menu, multi-selection enhanced. By clicking command button, user can choose whether the result show in query table, or in a report. It didn't work... the error has something to do with the date criteria. If I remove the date criteria, i.e. just allowing selection of two categories, it works perfectly fine.

I've checked out many postings in this forum, but it doesn't take me far... below is the code, please please help....
Note: the cmdOK is the name of the command button for presenting results from query table.
-------------------------------------------
Private Sub cmdOK_Click()
On Error GoTo cmdOK_Click_Err
Dim blnQueryExists As Boolean
Dim cat As New ADOX.Catalog
Dim cmd As New ADODB.Command
Dim qry As ADOX.View
Dim varItem As Variant
Dim strDate As String
Dim str1MainCate As String
Dim str2MainCate As String
Dim str1MainCateCondition As String
Dim str2MainCateCondition As String
Dim strSQL As String
' Check for the existence of the stored query
blnQueryExists = False
Set cat.ActiveConnection = CurrentProject.Connection
For Each qry In cat.Views
If qry.Name = "QryCateDateForm" Then
blnQueryExists = True
Exit For
End If
Next qry
' Create the query if it does not already exist
If blnQueryExists = False Then
cmd.CommandText = "SELECT NewsClips.IssueDate, NewsClips.Title_Eng, NewsClips.Titile_Chi, NewsClips.NewsSource, NewsClips.[1CategoryMain], NewsClips.[1Sub-Category], NewsClips.[2CategoryMain], NewsClips.[2Sub-Category], NewsClips.hyperlink, NewsClips.FirstTwoPara, NewsClips.Notes, NewsClips.attachment FROM NewsClips"
cat.Views.Append "QryCateDateForm", cmd
End If
Application.RefreshDatabaseWindow
' Turn off screen updating
DoCmd.Echo False
' Close the query if it is already open
If SysCmd(acSysCmdGetObjectState, acQuery, "QryCateDateForm") = acObjStateOpen Then
DoCmd.Close acQuery, "QryCateDateForm"
End If
' Build criteria string for Date
strDate = "(((NewsClips.IssueDate) Between #" & datefrom & "# And #" & dateTo & "#))"
' Build criteria string for 1MainCate
For Each varItem In Me.fstMainCate.ItemsSelected
str1MainCate = str1MainCate & ",'" & Me.fstMainCate.ItemData(varItem) & "'"
Next varItem
If Len(str1MainCate) = 0 Then
str1MainCate = "Like '*'"
Else
str1MainCate = Right(str1MainCate, Len(str1MainCate) - 1)
str1MainCate = "IN(" & str1MainCate & ")"
End If
' Build criteria string for 2MainCate
For Each varItem In Me.SecMainCate.ItemsSelected
str2MainCate = str2MainCate & ",'" & Me.SecMainCate.ItemData(varItem) & "'"
Next varItem
If Len(str2MainCate) = 0 Then
str2MainCate = "Like '*'"
Else
str2MainCate = Right(str2MainCate, Len(str2MainCate) - 1)
str2MainCate = "IN(" & str2MainCate & ")"
End If
' Get 1MainCate condition
If Me.optAnd1MainCate.Value = True Then
str1MainCateCondition = " AND "
Else
str1MainCateCondition = " OR "
End If
' Get 2MainCate condition
If Me.optAnd2MainCate.Value = True Then
str2MainCateCondition = " AND "
Else
str2MainCateCondition = " OR "
End If
' Build SQL statement
strSQL = " SELECT NewsClips.IssueDate, NewsClips.Title_Eng, NewsClips.Titile_Chi, NewsClips.NewsSource, NewsClips.[1CategoryMain], NewsClips.[1Sub-Category], NewsClips.[2CategoryMain], NewsClips.[2Sub-Category], NewsClips.hyperlink, NewsClips.FirstTwoPara, NewsClips.Notes, NewsClips.attachment FROM NewsClips " & _
"WHERE NewsClips.[IssueDate] " & strDate & _
str1MainCateCondition & "NewsClips.[1CategoryMain] " & str1MainCate & _
str2MainCateCondition & "NewsClips.[2CategoryMain] " & str2MainCate & ";"
' Apply the SQL statement to the stored query
cat.ActiveConnection = CurrentProject.Connection
Set cmd = cat.Views("QryCateDateForm").Command
cmd.CommandText = strSQL
Set cat.Views("QryCateDateForm").Command = cmd
Set cat = Nothing
' Open the Query
DoCmd.OpenQuery "QryCateDateForm"
' If required the dialog can be closed at this point
' DoCmd.Close acForm, Me.Name
' Restore screen updating
cmdOK_Click_Exit:
DoCmd.Echo True
Exit Sub
cmdOK_Click_Err:
MsgBox "An unexpected error has occurred." _
& vbCrLf & "Procedure: cmdOK_Click" _
& vbCrLf & "Error Number: " & Err.Number _
& vbCrLf & "Error Description:" & Err.Description _
, vbCritical, "Error"
Resume cmdOK_Click_Exit


End Sub
------------------------------------------------

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I have not found the solution to this looking elsewhere, but basically what I am trying to do is the following:

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1 12/15/2012
2 6/12/2012
1 6/13/2012
2 6/14/2012
3 6/16/2012

I want a query which shows the count or records for which a person has a date within 30 days of each other. This is being queried from a large table in which records would may not be sequential by person. Thus in my example above, the third record for person 1 would be omitted as well as the record for person 3.

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example: april 1st, 2013 = 1130401

Every single date always has that preceding "1" in front of it, then the year, then the month, and finally the day.

I want to always specify the current date whenever the query is run (without having to type it in)

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Apr 26, 2013

I am trying to perform a search function query in access but am having trouble. I have two tables. One table has a column in which I need to search the contents of this field by referencing data in another field/table. I am able to write the query searching the data manually (not referencing the other table) but can't seem to get the query right when referencing the other table!

this query works =
SELECT *
FROM Sample_Data
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but, i put together a frequency table (Table name = Frequencies) and the column within that I am searching for is called Frequency. im trying to reference Frequencies.Frequency using a LIKE statement.

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How can this problem be rectified?

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Jun 16, 2005

Hi,

Need some help. Here's the problem:-

I've two fields in a table (A & B)

A B
1 Null
2 Null
3 1
4 2
5 3
6 5
7 Null
8 4
9 6

The fields are somehow related where values of B (unique) is taken from A(unique).
I trying to do an SQL such that if I input a single value A=9 or 6 or 5 or 3 or 1, the following should be the output:

A B
9 6
6 5
5 3
3 1
1 Null

Or in another case where I input a single value A=8 or 4 or 2
the following should be the output:

A B
8 4
4 2
2 Null

How can I do that? Many thanks in advance!! :D

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Do queries limit the return of memo field data to 255 characters? I have run other queries on other memo fields in the past, and do not recall ever having this problem.

FYI, there is no indexing, criteria or joins/relationships on the memo field - whilst returning other fields, I purley wanna return whatever is contained in the field.

Any ideas?


Cheers

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I am trying to insert a value in a field from an existing fields. I attached a sample of my database to show the query. In the NewProduct field I need "change of product" data to override the "product" data but if "change of product" is null/empty the "product" value should be in the NewProduct field. In other words the NewProduct field must take the value of either/or of the change of product or the product field. If

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