Return Nothing To Criteria, Not Balnk
Nov 4, 2005
Hi
I have a combo box displaying a list of values from a field in one of my tables. The criteria of a query is linked to this combo box. So when the user selects one of the values in the combo box, then hits the button to run the query, only the records with that value appear.
Works fine
however i want the user to still be able to pull up all the records. However if you leave the value blank in the combo box and run the query it shows no records.
How do you get round this?
Thanks
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May 10, 2007
Hi:
Using MS Access 2000.
Maybe I've been looking at the monitor for too long but... I need to have a query return data based on a date field or return all dates greater than 1/1/2001 if left blank.
criteria: [Enter date - mm/dd] Or >#1/1/2001#
When I leave it blank it gives me all dates as it's supposed to but when I type a date it does not filter by that date, I still get everything.
I also tried [Enter date - mm/dd] Or Like "*" but it behaves the same way. I know it has got to be easy but my skull may be too thick to let me see it.
Any help is appreciated.
:confused:
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Nov 20, 2012
On a report I want to Dlook up using if a name and a date match on a query line it will return the total that is associated in that same line. What do i need to add to the below is if
=DLookUp("[Total]","qryaQFFSumOfTotal10day","[AssociateName]=Reports!rprtQFF10day![AssociateName]") & qryaQFFSumOfTotal10day","[ErrorDate]=Reports!rprtQFF10day![Date1]") if null = 0?
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May 9, 2013
I have 3 main tables: tblEmployees, tblJobs, and tblProcedures. (See attachment for relationship diagram and additional supplemental tables).A job can have multiple procedures and an employee can have multiple procedures too.
I need to write a query such that when searching by a specific job I can see all of the employees who are qualified for that job. This is done by seeing which employees have the procedures that belong to a job. But here's the catch: since a job can have multiple procedures, if an employee only has some of the procedures I don't want that particular employee to return as a search result. The employee must have ALL the procedures that belong to the selected job.
So for instance if I have:
tblJobs
Job1
tblEmployees
Emloyee1
Employee2
[code]...
If I search by Job1, I want only Employee2 to return as a result, NOT Employee1.I am at a lost for how to construct the SQL for something like that.
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Dec 3, 2014
I have a form that is bound to a query that returns all records matching a set criteria (namely, the field ApprovalDate is null); the idea is that the user clicks on a command button which gives information, and if the user chooses to continue (vbYes), then the field ApprovalDate has its value set as the current date, and the record is saved.
Next, I have put in DoCmd.Requery to requery the form and effectively go to the next record wanting approval - this appears to work fine, however I need to add something to the code that handles a null return from the requery - preferably a message box and then have the form close.
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Jun 30, 2015
How to write an expression/criteria in a query that will return only ID numbers with alpha numeric values. Example: My Id field contains both numeric 479621, 680530 and alpha numeric 132NAV100, 174NAV26a values. I want to run the query to return only the alpha numeric values.
I do not know SQL nor VBA.
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Mar 12, 2014
I have a table that contains readings from several pieces of equipment as well as the status of each one. Each record has a timestamp, equipment number, status, etc. What I want is to create a query that will return the latest record for each equipment number. Simplified example table:
Timestamp EquipmentNumber Status
Today ------Machine1 ----------Running
Today ------Machine2 ----------Running
Yesterday -Machine1 ----------Down
Yesterday -Machine2 ----------Running
There are more than 20 different Equipment numbers and they are read several times per day and sometimes some of them get missed. What I'm looking for is a way to get a list of all the machines with their latest reading so they can tell which machines are running and which are down based on the last time they were read (instead of specifying a date). I can get this for one machine with no problem. I'm having trouble getting it for more than one machine. I tried a union query (with just 2 of the machines included for testing) but it only returns the results from one machine:
Code:
SELECT TOP 1 TestCompressorRoundQuery.LoggedAt, TestCompressorRoundQuery.AssetNumber,
TestCompressorRoundQuery.CompressorID, TestCompressorRoundQuery.Status, TestCompressorRoundQuery.CompressorIntegrity, TestCompressorRoundQuery.Notes
FROM TestCompressorRoundQuery
WHERE (((TestCompressorRoundQuery.AssetNumber)="104399"))
UNION ALL
[Code] ....
I'd rather not have to create a seperate query for each machine and then join all of those together! I think perhaps a Union query might not be the correct approach. All the data is coming from only one table.
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Feb 11, 2014
I have been trying to find a solution to why I can't get a Dlookup with multiple criteria to return the value I need.
Essentially I am trying to use an Order Number to find the item number which is contained within another table. However the order number has multiple lines (suffixes) which alter the item number. Therefore I am trying to have the item number be populated by the correct 'combination' of Order Number and line ("suffix").
I have managed to use the Dlookup in the after update of each box of the form separately and they retrieve values in the table correctly:
Afterupdate of main order number:
Code:
Private Sub OrderNumbertxt_AfterUpdate()
ItemNumbertxt = DLookup("item", "dbo_job", "[job] = '" & Forms![**INPUT]![OrderNumbertxt] & "'")
End Sub
Afterupdate of suffix:
Code:
Private Sub SuffixTxt_AfterUpdate()
ItemNumbertxt = DLookup("item", "dbo_job", "[suffix] = Forms![**INPUT]![SuffixTxt]")
End Sub
However when I combine them as follows in the afterupdate of the Suffix box I receive a "Run-time error '13': Type mismatch"
Code:
Private Sub SuffixTxt_AfterUpdate()
ItemNumbertxt = DLookup("item", "dbo_job", ("[suffix] = Forms![**INPUT]![SuffixTxt]") And ("[job] = '" & Forms![**INPUT]![OrderNumbertxt] & "'"))
End Sub
I think the reason is something to do with some being numbers and some being a combination of text and numbers (based on the replies of other topics), but have been trying to modify these slightly and can't get it to work still.
Also the Order Number is a combination of letters and numbers (normally in the form of AB12345678), the suffix is just a number between 0-9 and the Item number it finds is a combination of numbers and letters.
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Dec 6, 2013
I have two tables of data. One contains balances for a set of accounts (one unique balance per account, per date). The other contains transactions for a subset of the accounts (multiple records - or possibly none at all - per account, per date)
I'm trying to write a query to return the sum of the transactions from the Transaction table, for each unique account + date combination which is present in the Balance table.
Here is my SQL :
Quote:
SELECT tblBalances.BalDate, tblBalances.AccountID, Sum(tblTransactions.Amount) AS SumOfTransactions
FROM tblTransactions RIGHT JOIN tblBalances ON tblTransactions.AccountID = tblBalances.AccountID
WHERE (tblTransactions.TransDate=tblBalances.BalDate)
GROUP BY tblBalances.BalDate, tblBalances.AccountID;
This works fine with one major problem; if there are NO transactions for any given account + date in the Transaction table, I get no record for that combination in the dataset.
What I need is for the query to return a 0 in those situations (i.e. I should have as many records in my queried dataset as there are in my Balances table, but SumOfTransactions may be 0 for some of those balances)
I've tried the following but it has no effect on the outcome :
Quote:
SELECT tblBalances.BalDate, tblBalances.AccountID, Nz(Sum(tblTransactions.Amount),0) AS SumOfTransactions
FROM tblTransactions RIGHT JOIN tblBalances ON tblTransactions.AccountID = tblBalances.AccountID
WHERE (tblTransactions.TransDate=tblBalances.BalDate)
GROUP BY tblBalances.BalDate, tblBalances.AccountID;
Quote:
SELECT tblBalances.BalDate, tblBalances.AccountID, Sum(Nz(tblTransactions.Amount,0)) AS SumOfTransactions
FROM tblTransactions RIGHT JOIN tblBalances ON tblTransactions.AccountID = tblBalances.AccountID
WHERE (tblTransactions.TransDate=tblBalances.BalDate)
GROUP BY tblBalances.BalDate, tblBalances.AccountID;
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Jun 15, 2015
I cannot get my query to return result when I enter the month of "June" as search criteria. June is listed in the table and query, every other month is returned except June.
I have attached two example for your reference.
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May 15, 2013
I have two date fields in a table. I need to find the days between these dates and, if its greater than 7 days, I want to display the record in a report, so far, I have found a hand function that allows me to enter two dates and it returns a long data value representing the number of days in between the two dates. (google "I've developed the following code to count the business days between 2 dates." and its the second one that starts as SOLVED I made no mods to it as it does what i need it to do.
So, i added this to its own module within the data base for use within a query. My test query basically displays the unique ID, the start date and the end date and then displays the values returned from the function. here is the SQL:
SELECT [Main Table].[Unique ID], [Main Table].[Start date], [Main Table].[End Date], (Business_Days_Between([End Date],[Start date])) AS [Days between]
FROM [Main Table]
WHERE ((([Main Table].[Start date]) Is Not Null) AND (([Main Table].[End Date]) Is Not Null));
When ran, this Query works... However, when I enter a criteria like =2 or > 7, it says data type mismatch. I have even attempted the CInt() function to make sure its formated as int but i continue to get the same error.
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Dec 4, 2013
I am trying to make a DLookup function to return the ID number of an entry that matches 2 or 3 criteria but I am struggling to get the syntax correct for the second and third criteria.
Here is what I have so far:
1 criteria, works fine =DLookUp("[timedata]![id]","timedata", "[processdone] =" & Forms![Mainform]![p11] )
2 criteria, works fine =DLookUp("[timedata]![id]","timedata", "[processdone] = " & Forms![Mainform]![p11] & " And [timedata]![BGSnum] = 1001" )
BGSnum is a numerical value but it changes for each form I load, so what I want to do is use the form location value as the criteria.
E.g.
=DLookUp("[timedata]![id]","timedata", "[processdone] = " & Forms![Mainform]![p11] & " AND [BGSnum] = ' " & Forms![Mainform]![BGS] & "' ')
and possibly a third criteria too. This is where I am having problems and the syntax is wrong so MS Access wont let me save the macro.
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Aug 28, 2013
I have a table with Zip CODE field. I uploaded my information to this table form an excel file. There were over 120K rows of data so no way i could do this in excel.
So I found that some of the ZIP codes are either blank or have less than 5 digits.
Can I build a a query with the ZIP code field that will return all zip code records with less than 5 characters or blank. I'd like to repair these zip codes and a update query will be my next step.
I repeat excel is not an option because when I try to sort by the Zip Code column my computer explodes (okay not literally) ....
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Sep 17, 2013
I am trying to create a parameter query to return dates that have 2 years remaining.
For example I have dates for when mortgages expire, and I want to recognise the dates that have two years remaining using a parameter query but I can't figure out if I use DateAdd or DateDiff.
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May 22, 2013
I am currently creating a form to input new return parts into a database. I am trying to automatically generate a tracking number (##-AA-####-####). I have gotten myself to generate the ##-AA-#### in a list box and almost was able to generate the sequence number, 0001, 0002, etc. using the dmax function. I would like to generate the sequence number one higher than the highest, depending on part type and last 4 digits of part number. Our parts have unique last 4 different p/n but more than one can fall under the same type.
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Sep 16, 2014
I have a simple UDF that takes a string and returns a variant, which is an array of strings Example Input "Brick Wall" Return value would be a variant array with first element "Brick" and and second element "Wall" Now I have a table with a field of strings, and I want to make a query that returns all the results from the function, one per line.
So if my input table looks like this
[strField]
"kick the ball"
"return the pass"
my query result should looks like this
[Orig] [new]
"kick the ball" "kick"
"kick the ball" "the"
"kick the ball" "ball"
"return the pass" "return"
"return the pass" "the"
"return the pass" "pass"
Last time I had to do something like this I used VBA exclusively, with ADO objects, but I thought a query based solution would be easier.
With my current data the largest return array size my function returns is 27 elements but I wouldn't want to rely on that number being fixed.
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Oct 21, 2006
I have set up a database that stores actions (i.e jobs). In the table; two of the fields are...'required completion date' and 'actual completion date'. I wish to lookup, by using a query, all of the open actions (those which havent yet been complete (i.e the 'actual completion date' is null)) and then later on all those which are overdue (i.e the 'actual completion date' is null And the 'required completion date' <today....this being the criteria for an overdue action).
However, I have used a form which has a combo box which contains the values open and overdue. When a selection has been made I want a form to display with the results depending on the selection that has been made. I am capable of creating a form based on a query, but am unsure of how to construct the query with the correct criteria based on the option that is selected from the form.
Any help would gratefully be appreciated. Thanks
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Sep 15, 2005
I created a form that allows the user to choose the criteria that they want to see on a report using =Forms!formname!controlname in my query. It works great but I want to also allow the user to choose nothing and return all records instead of limiting them to choose just one type of record. Is this possible? Before I created the form my query had the [Enter parameter] on one criteria line and [Enter parameter] Is Null on the next criteria line and that was working great for my use but I need to create a simple form for other users.
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Aug 20, 2007
I have data for hundreds of stores. The data was pulled for the top 15 items by store, so I cannot obtain only the top 5 items that I need. How can I query this data to extract only the top (or bottom) 5 Subjects, by store, based on the percentage column?
StoreSubjectSalesSales %
1516Fiction56431.5-24.15%
1516Audio Unabridged1650.8-231.04%
1516History / Military History10081.1-29.99%
1516Role Playing / Graphic Novels14773.9-20.27%
1516Mystery13152.6-19.84%
1516Audio Abridged1785.9-141.84%
1516SciFi / Fantasy27535.3-7.93%
1516Juv Audio/Video1580.6-100.13%
1516Biography8103.6-15.89%
1516Sports7910.8-15.64%
1516Current Affairs / Law8141.9-14.34%
1516Reference7183-16.22%
1516Juv Non-Bk4585.9-25.02%
1516Science / Tech2961.4-33.98%
1516Movies / TV / Music / Dance3395.3-29.46%
1872Fiction307344.3-7.49%
1872Business134307.5-13.48%
1872Psych / Self Improvement100650.4-10.05%
1872Audio Unabridged29165.9-27.32%
1872Cookbooks57463.3-13.56%
1872Computers59235.7-12.37%
1872Regional59883.4-11.22%
1872Health & Fitness64713.8-10.29%
1872Maps19358.4-27.66%
1872Current Affairs / Law47927.1-11.08%
1872Travel Foreign42583.7-12.27%
1872Religion / Bibles80255.6-6.07%
1872SciFi / Fantasy67641.4-6.49%
1872Study Aids / Notes38299-11.24%
1872Games41745.1-9.79%
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Mar 28, 2007
Hi,
In a query, I am using the following code to return the average length of each tenancy. This works fine unless the length is 0. If so, it only brings back 'blank'. How can I change this code to return a 0 value?
Tenure Length AVG: IIf([Average Tenure Length]>0,Format([Average Tenure Length],"Fixed",Format(0,"Fixed")))
Thanks in advance
Lee
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Oct 4, 2005
Hi guys
Im trying to set my label to a string.
Something like
myLabel.caption = StringOne & chr(13) & StringTwo
The problem is I just get funny symbols instead of the carriage return.
Please help
Thank you in advance
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Mar 22, 2008
Hi There,
Can anyone tell me how to send a Carrage Return in Access? When I try to use the 'SendKeys with{Enter}', Access starts to run in an endless loop that seems to be some Wizard. All I want to do is go to a new line within the same text field.
Can any one help me? I'm an amature at Access and VBA.
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Apr 24, 2006
Hi all
i would like to know if there is a way to return a field to null
thanks in advance
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Apr 24, 2006
Hi all
i would like to know if there is a way to return a field to null
thanks in advance
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Oct 17, 2006
I am creating a database for a hyperthetical car hire company. I have created three tables, customer table, car table and bookng table. The customer table is linked to the booking table using a Customer ID (autonumber). The car table is linked to the booking table using NumberPlate. The primary key for the booking table is Booking ID.
The cars are catagorised in different groups e.g. hatchback, sports car etc. The customer will choose a car type which is entered into the booking table. They will also enter the dates for which they want to hire their car.
I want my database to take these dates and the type of car, search through the car table and return a list of cars of that type which are availiable on these dates.
Can this be done???
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Aug 19, 2005
When running a query, I want to hide duplicates records for a given field. PO# will have many duplicates, depending on how many part numbers were order on the same PO#. Other unique fields are not displayed. Can an expression help with this? If not, how do I go about hiding them in a query?
Current Query results:
DATE PO#
08/18/2005 ABCD
08/18/2005 ABCD
08/18/2005 ABCD
08/18/2005 ABCD
Desired Query results:
08/18/2005 ABCD
Thanks in advance with any help!
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