Hi,
I would like to convert zero if enter into null value during the data entry phase in a form. This means that zero values will be stored as null values. Is there a way? I am not able to do it in the input mask somehow.
Thanks for any help in advance.
I have a query which returns, among other things, a number of boolean fields. In some cases, there will be a genuine True or False value in each of these fields; in others, it can and should be Null (e.g. as a result of a 'failed' LEFT JOIN of some description, where there is no associated record in the joined table which fulfills the criteria)
So something like this :
Code:
SELECT [tblTable2].[fldBooleanField]....
FROM [tblTable1]
LEFT JOIN [tblTable2]
ON [tblTable1].[SomeID] = [tblTable2].[SomeID]
However, I will be writing the result of the query to a text file and here's the problem. I want to show a numeric value for a genuine True / False (i.e. -1 and 0 respectively using the standard boolean conversions in Access) and a blank for any Null values.
So I tried this :
Code:
SELECT CInt([tblTable2].[fldBooleanField]) AS fldBooleanField....
FROM [tblTable1]
LEFT JOIN [tblTable2]
ON [tblTable1].[SomeID] = [tblTable2].[SomeID]
However, currently when I look at the exported recordset in Notepad, I am getting 0's for both False and Null values (and -1 for True)
How I can adapt my query to keep Nulls...null? And convert the genuinely present boolean values to integer form?
Only thing I can think of is to use (untested) :
Code:
IIf([tblTable2].[fldBooleanField] Is Null, Null, CInt([tblTable2].[fldBooleanField]))
But there's a number of boolean fields in there, all requiring the same treatment.
I have a form with 4 different search fields used to query a table and limit results: Policy#, SSN, Credit_Amt, Debit_Amt. Any matching rows based on the search criteria are returned in a subform.
My problem is how to handle any fields where the user doesn't specify a search value.
In my query, I have the Criteria set to:
Field: Policy_No
Criteria: =[Forms]![form name]![Policy#]
Field: SSN
Criteria: =[Forms]![form name]![SSN]
and so on....
If I place my criteria on different OR lines, the query runs, but if a user specifies more than 1 criteria, I get all the data for one criteria(such as policy# matches) and all the data for the second criteria(such as all the records for a certain credit_amt, regardless of Policy #).
If I place my criteria on the same criteria line, effectively making it AND, I get no results because I assume the database is looking for any blank search field values.
So, how do I make the query an "AND" query, but actually get results by ignoring any NULL search fields? So if a user enters a Policy# and Credit_Amt, the results will be only matching rows by Policy# AND Credit_Amt, and doesn't look at SSN and Debit_Amt.
I've tried different iterations using IIF(Not IsNull(.... to no avail.
Thanks!
I'm trying to build an expression where the form can only be saved if the field supervisor approval is not null.
View 1 Replies View RelatedHi.
I have a db with a numeric field called Eur_2.
This field is populated with data imported from an excel file.
When the Eur_2 excel field contain Null, in the correspondent Access Field the value inserted is 0 (zero).
I have necessity to put in the Access field Null value.
The VBA code that I use for import is:
Eur_2 = XL.Application.Cells(indriga, indcolonna + 10)
If Eur_2 = 0 Or _
Eur_2 = Empty Then
Eur_2 = Null
End If
but when i open the Access table, the value inserted is 0 (zero).
There's something to do for change 0 (zero) to Null?
Thanks
Luigi
Hi Guys, i have a problem in converting NULL to 0 , i wrote a query which gave me a Null value, But i would like to know if there is any way i can change the NUll value to 0.
ex
SELECT Sum(xxxx) AS yyyy FROM zzzzz WHERE******=#####;
i got NULL.
I need to get 0 instead of Null.
Plz help
I have a form with couple of textboxes bound to a table. When the user opens the form to enter records, i want to write a function that would go through the textboxes to check whether the textboxes are left NULL. Now i can write code on button click for each form, but i was wondering if its possible to write a function that could be called for each form that i have to check for null values.
View 7 Replies View RelatedIt 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] ....
i'm creating a search form giving the end user a range of controls to use when filtering/searching data. See the image.But, i think my range search (using the textbox) to put in a lower and upper limit...is preventing this from working. In fact, when i put data into all the controls, no data pops up in my subform.
My query data source can also be seen...showing you how i've handled teh null entries. (i need to put in a null 'handler' for the two textboxes?)
Simple query, but I need to roll the results up with others and a null return is hurting me. I have been chasing my tail around with the nz(), input masks, IIF statements, only to prove my ignorance and possible insanity for expecting different results.
Here we go:
SELECT Count([LDB LOG].DSTHTL) AS ["tot120"]
FROM [LDB LOG]
WHERE ((([LDB LOG].[LDB Rcvd]) Between Now()-120 And #1/1/2008#))
GROUP BY [LDB LOG].[T-7 Date]
HAVING ((([LDB LOG].[T-7 Date]) Is Null));
This is being used to count open items into age buckets, the above is the greater than 120 days (discounting anything prior to 2008). If the T-7 Date is null the item is open. What is happening is that no records are being selected, resulting in the null value back.
Any help would be greatly appreciated as I have spent an unrealistic amount of time on this.
Thanks
Brendan
I think the title pretty much sums it up....
I have a query where data is first sorted by user input; first field's criteria: [fieldname], then by another field's criteria: Is Null.
I know there are records containing null values in the second field, as I have run a select query with the criteria: Like "*", to make sure they are null, and not zero-length-strings.
The query is refusing to return any results...
Any ideas?
Hi,
does anyone know how to convert decimal numbers to octal using a comand in a query , for intance in excel the command is DEC2OCT(val)
Cheers
I am designing a database for our audit teams to carry out reviews of our claims handlers and have put next to each of the questions on a form an option group of three option buttons, "Yes", "No", "Not Applicable" with the values "1", "-1" and "0" respectively. This value is then stored in a table under the relevant field, intQuestionValue, for Q1, Q2, Q3 etc.
This works well for calculating scores, percentages etc. for all the questions. However the manager of the team has said that there will be times when he wants to report by the number of "No" answers for example, so that he look at trends and build these into training plans etc.
I do have a table, tblScores, which has two columns in it. One for the text element, "Yes", "No", "N/A" and the other has the corresponding numeric value in it.
Because there are numerous questions i cannot seem to create a join in a query for the numeric value to bring back the text value. The only other method that came to mind was to write the text outcome to a table as well at the same time, but I'm not sure how I would do this at the same time as clicking the option button, or would it all save when i (the user) closes the form?
Easy one for the experts here I hope:
I want query to show all results including any null values because at the moment it just misses the null values out.
So for example instead of the query saying that Fruiterer A has 5 apples, 0 oranges and 4 bananas it just says that Fruiterer A has 5 apples and 4 bananas. Therefore because oranges was a null value then it simply makes no reference to oranges.
Please help, many thanks,
Paul
Hello,
I have two tables called table1 and table2 with following fields:
Table1:
Name
NameId
Table2:
Name
NameID
Visits
where name and nameid is same but visit can me 0 to 230. name in table2 is
same as table2 but only showing visit 1 or higher. How can I make new table that can list all name, nameId and visits.
I can create new table but it shows only table2's record. so all I need is
table1 and table2 record if names are missing in table2 then put 0.
Viral
Hi all
I have 3 linked tables in a vehicle database. 1 keeps a record of Service Due date, 1 has the Fleet numbers and the last contains Vehicle Condition reports.
They are linked by the Fleet numbers. I have a query that returns the Services due between 2 dates. What I would like is to have the same query return any outstanding Vehicle Condition items as well for any Vehicles due for servicing. Currently, I can include the field in the query but if there are no current items for a vehicle in the Vehicle Condition table then the query does not return that vehicle as a result. Any suggestions would be appreciated.
Regards
Craig
Hope someone can help with this. I'm sure it's dead simple but it's driving me insane!
The scenario is a number of departments who are processing something (sales for example). So, for October
Dept 1 - 20 (Sales)
Dept 2 - 10
Dept 3 - 2
Dept 4 - 7
Now I want to count the number of sales completed from these totals. However, as Dept 3 has no sales completed for October it does not show in the query. So I get
Dept 1 - 7
Dept 2 - 2
Dept 4 - 6
Any idea how to get Dept 3 - 0 to show up in the query?
Any help greatly appreciated!
I've found several threads on this subject, but I still can't get it to work, so please forgive me if I seem to be duplicating a question.
I'm making a very simple db. It has only 2 tables:
MATERIAL (one)
TEST RESULTS (many) with left join.
I need to report average test results (by MATERIAL) weekly, even if there were no tests for a particular product that week, ie;
MATERIAL A = 100
MATERIAL B = 90
MATERIAL C =
MATERIAL D = 105
When I try to query, I only get results for A, B and D. It seems to be ignoring the MATERIAL table and looking only at the TEST RESULTS table.
I'm sure it's something simple that I'm overlooking but how do I get C to show, even if it has no results.
Here's my query SQL.:
SELECT DISTINCTROW [MATERIAL Query].MATERIAL, Avg([TEST RESULTS].V50) AS [Avg Of V50]
FROM [MATERIAL Query] LEFT JOIN [TEST RESULTS] ON [MATERIAL Query].MATERIAL = [TEST RESULTS].MATERIAL
WHERE ((([TEST RESULTS].[TEST DATE]) Between [Forms]![Date Range Form]![Start Date] And [Forms]![Date Range Form]![END DATE]))
GROUP BY [MATERIAL Query].MATERIAL;
As always, thanks in advance.
BeckieO
Hi all.
I am trying to build a query that combines several fields. The situation is as follows....
1. If a is > b then i need a
2. If b is > a then i need b
3. If a is null then b is not null
4. If b is null then a if a is not null
5. If a and b are null then '999999'
I have everything taken care of up to If 4. The problem i am having is that when create the sql language for 5 it is adding 999999 to the filed when step 3 or 4 are the case. See languange below.
Any help would be greatly appreciated.
IIf(MSC.[TDS<2500_S_GW_NR_100xGWMSC_mg/kg]>MSC.[TDS<2500_S_GW_NR_Model_mg/kg],MSC.[TDS<2500_S_GW_NR_100xGWMSC_mg/kg]) & IIf(MSC.[TDS<2500_S_GW_NR_Model_mg/kg]>MSC.[TDS<2500_S_GW_NR_100xGWMSC_mg/kg],MSC.[TDS<2500_S_GW_NR_Model_mg/kg]) & IIf(MSC.[TDS<2500_S_GW_NR_100xGWMSC_mg/kg] Is Null,MSC.[TDS<2500_S_GW_NR_Model_mg/kg]) & IIf(MSC.[TDS<2500_S_GW_NR_Model_mg/kg] Is Null,MSC.[TDS<2500_S_GW_NR_100xGWMSC_mg/kg]) & IIf(MSC.[TDS<2500_S_GW_NR_100xGWMSC_mg/kg],MSC.[TDS<2500_S_GW_NR_Model_mg/kg] Is Null,'999999') AS MSC_SGW
I have a series of values within a table that includes a number of null values. I would like to include this field within a query, however if the value is null I would like to show a 0, if the field is not null, I would like it to show the original value.
I have tried to use the IsNull in an iif formula without luck.
PS: If I was conducting this in Excel I would use the following =IF(J3="",0,J3)
I have a query set up to sum 2 fields to a 3rd field, for example, I have
field1, field2, and field3.
Fields 1 and 2 are data from a table.
In Field3 I have an expression:
Field3: [Field1] + [Field2]
This works fine except when either Field1 and/or Field2 contain no data, then the sum does not work. Any ideas how to correct this?
I realize this may not be the best way to accomplish what I am trying to do but this is a small part of a very large application and i would like to change as little as possible since everything else is working ok.
Thanks very much.
I'm trying to get my head around null values.
data required is no. Allow zero length strings is yes.
txt2 is a memo field
in a report on page event, I'm trying to get the following code to work.
If IsNull(txtg2) = True Then
Me.lblg2.Visible = False
Else
I've tried this too:
If Me.txtg2 = Null Then
Me.lblg2.Visible = False
Else
It doesn't seem to work. Any ideas?
hello friends,
I have written an insert query but sometime it does not work properly and leave some column blank. I want to write a query which should check for the blank columns and delete these records.thanks in advance
I currently have a crosstab query that compares data for two years. The results look like this.
month 2004 2005
January 98% 95%
.....
Decemeber 98
What I am getting at is that the query returns null values for the fields that do not have data recorded for the months in 2005 because we have not reached them yet. Is there a way for me to make sure that at least the value 0 is entered in the null value areas?
I need to create a query with the MTD field
I have created the MTD and it works!!! but now I need it to show all of the PartNum fields even if null. do I need to convert all nulls to zeros? if so how do I go about this?
Here are the fields in the query
First Field:
Field: PartNum
Table: Part
Total: Group By
Second Field:
Field: UnitPrice
Table: OrderDetail
Total: Group By
Third Field:
Field: NumOrdered
Table: OrderDetail
Total: Sum
Fourth Field:
Field: MTD: Sum([NumOrdered]*[UnitPrice])
Table: (blank)
Total: Expression
Fifth Field:
Field: CurrentYear: Year([OrderDate])
Table: (blank)
Total: Group By
Criteria: Year(Date())
Sixth Field:
Field: CurrentMonth: Month([OrderDate])
Table: (blank)
Total: Group By
Criteria: Month(Date())
When I run the query I only get 2 parts and their total. but I want all parts to show up even if they have not been ordered in the month. the parts that have not been ordered should say $0.00 in the MTD field.
Any Suggestions???
Hi all, need some help. In my query I have 4 fields, a weekly labour cost, weekly material cost, weekly plant cost and a weekly summary. The problem I have is that my weekly summary shows a null value on some weeks as not all the weekly costs have a value assigned to them.
I have been told there is a way in the query to convert Null values to zero so that the weekly summary field doesn't show a blank cell.
Could someone please explain to me how this is done? Thanks