Problem With Null Or Empty Table
Dec 12, 2005
I have the following problem:
I have a make table query that sum a total amount in order to have only the total in the table field.
However, when the total is 0.00, the make table query says "you are about to pos 0 rows" instead of postin 1 row with 0.00.
How can I set the query in order to have a 0 in the table when the total is 0 instead of having nothing posted ?
I have tried the is null, is empty, is missing, nz and nothing seems to work.
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Apr 15, 2005
In a previous post someone mentioned a difference between Null and Empty. Is Null is not pulling the nulls but I know those fields are empty. Can someone tell me how to pull in these empty fields. for my calculation I need to get Companies that showed revenue after and didn't show revenue once their contract started.
Thank you
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Nov 30, 2007
I have the query below and it returns the number of cases for eache of the case status (open, closed or private) Some of the cases have no status, the field is empty. Is there a way to count the number of cases which have no status in the status field?
Can someone tell me how to do this?
SELECT
Count([Report table part one].CaseStatus) AS CASES,
[Report table part one].CaseStatus AS STATUS
FROM [Report table part one]
GROUP BY [Report table part one].CaseStatus;
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Jun 1, 2014
I have a form, form1. Inside there is a combo box, cbo1, that gets its values from table1.On form load, I want an expression that checks if table1 has any values to "send" to cbo1. If yes, meaning, if after form loads cbo1 is loaded with table1's values, I want cbo1 colored RED, if not, colored WHITE.
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Sep 12, 2014
I have a module that creates records into a contacts table in my access database. When there is no data in the field from outlook, the data is populated as an empty string "" instead of a null value, creating problems with subsequent queries and processes. I'd like to create the data as a null value but the module keeps failing with "object is required" on the statement
rstImport("Customer ID").Value = System.DBNull.Value
It doesn't seem to like System.DBNull.Value or DBNull.Value, and when I assign the vbNullString constant instead, it gets set to "" again and not null.
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Jul 31, 2007
Im trying to concatenate a bunch of fields (50 arghh) which each are either blank or just contain one letter. This was someone elses setup for an attendance register which I think is an odd way of doing it. I would have used one field and then to get the mark for a week take a substring at the appropriate position. Anyway im trying to replace an empty string field with a letter to represent the register hasn't been marked using sql statement:
SELECT [400 Student Marks].acad_period, [400 Student Marks].student_id, [400 Student Marks].register_id, [400 Student Marks].register_group, Replace([1],"","U") AS attendance
FROM [400 Student Marks];
[1] being the first register week then I would have concatenated with [2] etc...
This however causes an error each time on the attendance field so im guessing replace doesn't work on empty strings. Is there a way round this/alternative.
Thanks for any advice.
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Jun 12, 2007
i have a query with this basic structureSELECT id FROM table1,(SELECT SUM(field2) as total2 FROM table2) - (SELECT SUM(field3) as total3 FROM table3) as totalto understand better let's say that:table1 are clientstable2 is money that enters for clientstable3 is money that exits from clientsi want to obtain a balance. the problem is that if table2 or table3 has no records for certain client, this client is exluded from resultsany ideas?i tried using ISNULL like this:SELECT id FROM table1,ISNULL((SELECT SUM(field2) as total2 FROM table2),0) - ISNULL((SELECT SUM(field3) as total3 FROM table3),0) as totalbut it didn't workedthis is the querySELECT id, UPPER(apellido_titular) + ', ' + nombre_titular AS padre, (SELECT SUM(facturas_items.importe) AS totalf FROM facturas INNER JOIN padres ON facturas.id_padre = padres.id LEFT OUTER JOIN facturas_items ON facturas.id = facturas_items.id_documento WHERE (padres.id = p.id) AND (facturas.fecha_vencimiento < GETDATE())) - (SELECT SUM(recibos_items.importe) AS totalr FROM padres INNER JOIN recibos ON padres.id = recibos.id_padre LEFT OUTER JOIN recibos_items ON recibos.id = recibos_items.id_recibo WHERE (padres.id = p.id)) AS totalFROM padres pWHERE (activo = 1) AND ((SELECT SUM(facturas_items.importe) AS totalf FROM facturas INNER JOIN padres ON facturas.id_padre = padres.id LEFT OUTER JOIN facturas_items ON facturas.id = facturas_items.id_documento WHERE (padres.id = p.id) AND (facturas.fecha_vencimiento < GETDATE())) - (SELECT SUM(recibos_items.importe) AS totalr FROM padres INNER JOIN recibos ON padres.id = recibos.id_padre LEFT OUTER JOIN recibos_items ON recibos.id = recibos_items.id_recibo WHERE (padres.id = p.id)) > 0)ORDER BY UPPER(apellido_titular) + ', ' + nombre_titularsorry for my poor english
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Oct 6, 2004
Can anyone guide me to how to code a form that will not error when closed if nothing has been input to the first field which has the focus? I have a start up form that has fields connected to a table and if this database is open and the user desides not to use it then closes it without entering any data it will error. Is this a recordset issue? Thanks
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Apr 15, 2015
How do i use DMax() function instead of Autonumber, since the table is empty and it wont know what to do with Dmax() + 1 for next record?
E.g I have a new table Customer_details which contains
customerID
customerName
Age
now if i enter data through forms, i want the CustomerID to be incremental for each new record, so i can use Dmax() function. But since the table is empty how can i tell the form, through VBA that if it is null store 1 else store Dmax("CustomerID", "Customer_Details") + 1
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Aug 1, 2005
Is anybody can help me to solve problem with inserting empty record between two records in unordered (non-indexed) table - like in Excel work sheet.
Regards,
Gennady
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Jul 11, 2013
I'm having trouble with syntax for using VBA on a report in Access 2007. I need to some hide 3 text boxes if one of my fields is empty in a table. The table name is: 'ALM-RESP' with rows grouped by: 'TAG NAME' and the field I'm checking is: 'Rev 002 Author'. I've tried having a rectangle to cover it up but I'm having trouble using the IsNull command and setting the visibility of the rectangle. Here's my code:
Private Sub Detail_Format(Cancel As Integer, FormatCount As Integer)
If IsNull([ALRM-RESP]![TAG NAME]![Rev 002 Author].Value) Then REV2BOX.Visible = False
End Sub
Basically I'm having trouble checking if the field is empty and then setting the visibility.
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Aug 6, 2015
I have a small problem: I have a table with over 20 columns. In every column there are some 1's, but the other cells or tuples are empty. In these empty cells I want to write a 0. So I need an UPDATE query.
But what should I write for the WHERE condition? So he should check every cell and if there's no 1, write a 0.
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Mar 17, 2014
I have a simple form (frmAddPaper): txtPaper where user enters name of new newspaper, and cboCity, where user selects the newspapers town.
Also Close and Save buttons.I also have a table, tblCity. Columns as follow: CityID, City, Paper1, Paper2, Paper3, Paper4, Paper5, Paper 6.
Some cities have values (Newspaper names) in just Paper1 field. Others in Paper 1 & Paper 2, and some in Paper1, Paper2 and Paper3.I want to add the txtPaper value, to the first empty column, in the row where cboCity matches City column.
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Jan 25, 2015
I'm working on a table for work which will serve as a database of bins and the products currently in those bins, as follows:
ID Bin Amt Product
1 34 25 110001
2 33 15 200005
3 32 23 110003
etc.
Basically: employee A will use a form to update "Bin 34" (ID=1), with information (Amt, Product) until it is emptied by employee B and cleared using a separate form. No new records will be made or deleted, just the adjacent fields (Amt, Product) cleared and filled in and cleared again over and over.
What I'm trying to figure out is, when employee A clicks on the combo box on his/her form to select a Bin and enter information, how can I filter what is listed in the combo box to display only those bins which have no values under Amt & Product. The real-world risk of overwriting a bins fields before it has been cleared by employee B (who physically empties the bin) can be extremely high monetarily so I am trying to reduce that risk by eliminating it from the combo box until employee B has cleared those fields.
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Feb 26, 2015
I have a created a query which I want to update a table. The field is called DTP. I have the Workingdays2 module in place as well as the Holidays Table. The dates (date only) are called Time in and Transaction date. I want the table to update records only if the entry in Completed is Yes. I have attached screenshot of what I have in query. I am no good whatsoever at VBA so I used the Query design view. It shows how many records will be updated (which is a valid number) and shows me which field will be updated. However when I run the query and then opend the Table the DTP field is empty.
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Apr 3, 2014
I have a work order system that people use but it somewhat randomly puts blank records into my table. I've added a lot of validation checks when submitting, closing and resetting the form and limited the way people can exit out of the form to fight this issue but it still happens.
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Mar 2, 2014
I am just querying a single table, no relationship involved with another table. As you can see form the attached jpeg, the ZIP field in some cases is empty. I would run a search using Is NULL but the field is NOT numerical. It's a long story but I had to make this field a TEXT field. Basically, what statement do I have to insert in the criteria field to just pull up the EMPTY ZIP fields?
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Jan 21, 2005
Hi everybody,
Beginner here needs help !
I'm building a make-table query for which if the result is null (no record correspond to the set of criterias), a default message like "there was no activity during the period" would appear in the table (not a message box...I need the message in the output table). The best I could think of is an IIF function but it doesn't seem to work... Is there any way to do this without using VBA?
Thanks in advance !
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Dec 25, 2014
i have two data tables, one is depending on the other. now i need to delete the main table row depending on the subtable row if it is null.
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May 2, 2007
Using the sql profiler gives me no clue.
This is the insert query from the profiler.
exec sp_executesql N'INSERT INTO "ENVIS_GSD".."wat_springflow" ("result_dt","site_id","result_va","remark_tx") VALUES (@P1,@P2,@P3,@P4,@P5,@P6)', N'@P1 datetime,@P2 int,@P3 float,@P4 nvarchar(4),@P5 varchar(3),@P6 datetime', 'Feb 10 2009 12:00:00:000AM', 3000723, 8.000000000000000e-001, N'test'
The two records that I get the proplem on are not included here, but somehow they have been updated. I traced the access code, but I could see no reference to them that they were used for the update in either the form or any modules called.
Somehow up to a few weeks ago those two columns were updated.
Tracing the code and using the immediate window the user_name variable stores the login name corectly.
Someone mentioned "error 28" any ideas?
Thanks in advance
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Feb 10, 2008
I need to add a Yes/No field to a table. I know I can do this in design view. Next I want to loop through the table and set it to Yes if certain fields are null. What I need help with is the VBA looping part and setting the boolean field to Yes if the fields being checked are null.
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Jul 13, 2006
There are 3 main tables
tblDrawingRegister - stores information about construction drawings
tblDrawing Revisions - each drawing in tblDrawingRegister has one or more revision or version
tblVendorDrawingList - this table has a list of drawings numbers that correspond to the drawings in tblDrawingRegister.
The drawing numbers from the vendor table as provided as an 'extra' as some people are more familiar with this numbering system.
Now the issue is that there is a one-to-many relationship between tblDrawingRegister and tblVendorDrawingList. In the screenshot I've attached there are 14 drawing numbers that correspond to one drawing number in tblDrawingRegister. (This is because the main supplier has packaged 14 drawings as one with just one drawing number). When this is the case I want to display the drawing title from the Vendor table. Otherwise if should just show the title from tblDrawingRegister.
I have tried using Dlookup to show the title from the vendor table when there are dublicates in the vendor table. It didn't work and I think this would be really slow. I've tried a few other things too but to no avail.
I really hope that this is clear. I've attached screenshots of the query too.
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Nov 16, 2014
I do not understand what is happening here. I have foll0wing line in a calculated query field:
m: Switch([EmpID]<5,1) ' run Query 18 in attached example, A2007/2010
this produces 1 for all EmpID<5 and Null for all other EmpID's. All as expected.
But if I do this:
m: Switch([EmpID]<5,1,[EmpID]>=5,Null) ' run Query 19 in attached example
then the entire column is set to Null
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Jul 5, 2013
It might be an easy one but I just wasted the past hour deciphering through my code in order to solve the run-time error '94' that I'm getting when trying to execute the following code:
Code:
Private Sub cmdUpdateDates_Click()
'###################################
'This sub aims at combining the timesheet date and the start and end time into the fields [Start Time] and [End Time].
'###################################
Dim intCounter As Integer
intCounter = 0
Dim rs As ADODB.Recordset
[Code] ....
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Aug 8, 2005
Is anyone else experiencing similar problem ?
Basically here's what happen:
1. User need to look up item name, while in a subform. He pressed F5
2. A form showed up, with a ComboBox (which got its values from a query)
3. User chose an item name in the ComboBox, and then pressed the Close button
4. The item name got copied into the subform.
Problem is, for some items/records, step 4 doesn't happen :eek:
When I investigated, turned out that for some records, the ComboBox returned null (instead of the selected record)
This is on a 5800+ records table, on Access 2000.
Here's the code :
[Forms]![005_cashier].[subform_0051_enter_sold_items]!selling_price = Me!item_name.Column(2)
[Forms]![005_cashier].[subform_0051_enter_sold_items]!quantity = 1
The second line always works (always got copied to the subform properly), while the first one only works with certain items/records.
I've examined the offending records, but couldn't imagine how they'd be able to make Access to behave like that.
Any ideas ?
Thanks,
Harry
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Jul 31, 2013
I have a Membership List Table with a calculated field entitled Member Name.
The second table entitled Groups contains only 46 records each of which has up to 30 Fields also containing member names.
I Have written a query to establish which of the members from the single field of the first table do NOT featured in any of the fields and records of the second table. In the Query Design View I have listed 'Member name' from Table 1 followed by all the relevant member fields from Table 2, carrying the criteria 'Is Null'.
When I run the query, it merely lists all the members from Table 1.
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