using ms-access 2013, I've written a query that has a lot of variables in it. Is there a way to see the query as it was run, with the variable names replaced by the value of the variable?
Instead of "Select * where name = strName..." I'm looking for it as it was run, "Select * where name = "jones" for example. Is there a way to display it on a form (where the query is in a subform)?
Thanks.
Two approaches:
1. Do this in VBA. When you construct the SQL query (adding filters in VBA), you use the resulting SQL twice: once to execute as a SQL query, once to place as text in a textbox control.
2. If your filters on the query are on forms, you can update a textbox control that constructs your SQL. So if your input is a control named txt_LastName, in the txt_SQL textbox where you want to show the complete SQL, the Control Source would be:
="Select * where name = " & Chr(34) & [txt_LastName] & Chr(34)
When txt_LastName is set to Jones then txt_SQL would be set to:
Select * where name = "Jones"
Related
Essentially I would like to update a subforms column values with a name found in a combo box.
A table called "tbl_jobs" is the source behind the subform, the column I am trying to update is called "Person_Name".
The combo box is called "PersonCombo" .
I am working on creating a query called "updateRecord" using the Access query designer that is executed by the button "updateButton"
The following is how the query will be executed:
DoCmd.OpenQuery "updateRecord"
The content of the query is what I am having trouble with:
UPDATE tbl_jobs SET Person_Name = '" & PersonCombo & "' WHERE [Select] = True
Instead of filling the column data with the values from the chosen name in "PersonCombo" like Jamie, Mickey, Haley, etc. (values from PersonCombo) it just says " & PersonCombo & "
What is wrong with my syntax?
If this is a saved query, it doesn't know about the current form.
You need to use the full path to the control, but no concatenation, e.g.
UPDATE tbl_jobs SET Person_Name = Forms!myForm!PersonCombo WHERE [Select] = True
If the combo box is on a subform, refer to:
Forms: Refer to Form and Subform properties and controls
e.g. Forms!Mainform!Subform1.Form!ControlName
I do not believe you can pass a variable to a saved query. Instead build the query in code and run it:
dim SQL as string
PersonCombo = "thePerson"
SQL = "UPDATE tbl_jobs SET Person_Name = '" & PersonCombo & "' WHERE [Select] = True"
DoCmd.RunSQL SQL
Access 2013 - Reference an Unbound text box on a Form
I am currently trying to use an unbound text box [Text161] on a Form name [DCM_Gap_Servers] to sort information through a table. I want the query that I created to be able to take the users input from [DCM_Gap_Servers]![Text161] as the field that is being sorted from the table names 'Server'.
This is the SQL I am using right now in the query:
SELECT * FROM Servers WHERE "Forms![DCM_Gap_Servers]![Text161]" IS NULL
** I have already Tried:
"Forms![DCM_Gap_Servers]![Text161]" ; (Forms![DCM_Gap_Servers]![Text161]); Forms.[DCM_Gap_Servers]![Text161]
This will work at any time if I replace the Text Box reference with the actual Field name I am using, but since there are hundreds of combinations of fields, I need the reference to work.
I have looked all over, and I can't seem to find the correct answer. I am willing to do it in VBA if needed, whatever it takes to get the filtering done correctly.
Thank You.
It is:
SELECT * FROM Servers WHERE Forms.[DCM_Gap_Servers].[Text161] IS NULL
but that will just select all records whenever your textbox is Null.
So it rather is:
SELECT * FROM Servers WHERE SomeField = Forms.[DCM_Gap_Servers].[Text161]
To use the form value as a field name, you must use concatenated SQL:
strSQL = "SELECT * FROM Servers WHERE " & Forms![DCM_Gap_Servers]![Text161].Value & " IS NULL"
This you might pass to the SQL property of an existing query object:
MyQueryDef.SQL = strSQL
Or:
Constant SQL As String = "SELECT * FROM Servers WHERE {0} IS NULL"
FieldName = Forms![DCM_Gap_Servers]![Text161].Value
MyQueryDef.SQL = Replace(strSQL, "{0}", FieldName)
Of course, take care the the field name isn't a zero length string.
I am working on a form that is meant to analyze financial data ahead of an insurance policy renewal. It needs to pull various premium and claim $$ totals from the tables, and insert them into the form. From there, it will run some calculations with them, but that should be the easy part. Where I'm struggling is the SQL statements to get the data, in the first place.
After narrowing it down a bit, I've found that the problem is the code is putting the SQL statement into the field on the form, instead of the answer the SQL statement should be providing. I have tried multiple things I've seen online, and can't figure out how to resolve this.
One of the SQL statements reads like this:
L12W = "SELECT Sum(tblActPrem.APWrit) AS SumOfAPWrit FROM tblActPrem " _
& " WHERE tblActPrem.EntID = '" & Me.ctlActEntID & "' " _
& " AND tblActPrem.PolNum = '" & Me.ctltblRnwlTrack_PolNum & "'" _
& " AND tblActPrem.APDate BETWEEN #" & L12M & "# AND #" & Me.ctlRnwAnalysisDt & "#;"""
It should be totalling premium data from the table, where the policy number and account number match what's on the form, and between the selected dates, and putting that total into the field on the form. Instead, I get this on the form:
SELECT Sum(tblActPrem.APWrit) AS SumOfAPWrit FROM tblActPrem WHERE tblActPrem.EntID = '1235' AND tblActPrem.PolNum = 'Policy1' AND tblActPrem.APDate BETWEEN #1/1/2014# AND #1/1/2015#;"
That is exactly how the statement should be running, but can anyone tell me how to make the leap from the statement, to the data?
Thank you!
Consider using DLookup or DSum in the control source of the form's field.
DLookup Solution
First, change your VBA SQL query into a stored SQL Query (notice quotes and # symbols are not necessary when referencing form controls):
SELECT Sum(tblActPrem.APWrit) AS SumOfAPWrit
FROM tblActPrem
WHERE tblActPrem.EntID = Forms!<yourformname>!ctlActEntID
AND tblActPrem.PolNum = Forms!<yourformname>!ctltblRnwlTrack_PolNum
AND tblActPrem.APDate BETWEEN Forms!<yourformname>!L12M
AND Forms!<yourformname>!ctlRnwAnalysisDt
And then in the form field textbox's control source use the DLookUp function (no criteria argument is needed since this should return only one value).
= DLookUp("SumOfAPWrit", "<yournewqueryname>")
DSum Solution
Alternatively, you can change the entire SQL statement into a DSum but notice how long the criteria (WHERE statement) would have to be.
= DSum("APWrit", "tblActPrem", "EntID = Forms!<yourformname>!ctlActEntID
AND PolNum = Forms!<yourformname>!ctltblRnwlTrack_PolNum
AND APDate BETWEEN Forms!<yourformname>!L12M AND Forms!<yourformname>!ctlRnwAnalysisDt")
I am very new to Microsoft Access.
I would like to select a column from a table based on the value of a parameter (i.e. my table has columns x, y and z and I have a chosencol parameter which is set by the user using a dropdown.
I can select one / all of the columns using a select command, however, I would like to do this using my parameter chosencol instead.
Having read around, I have found a number of references to using the SET and EXEC commands, however, entering them into the SQL command in Access just yields errors.
Please could someone advise me as to how I go about implementing a dynamic-sql query in Access (in fine detail as I think I am writing the commands in the wrong place at the moment...)
First I created an example table in Access.
Next, I created an example form to query your value. The dropdown is called 'chosencol'. Select a value from the Column Select dropdown and press the "Lookup Value" button.
Here is the code under the "Lookup Value" button's On Click event. A SQL statement is dynamically built with the column you chose. The column is renamed to [FieldName] to that it can by referenced.
Private Sub btnLookup_Click()
Dim rsLookup As New ADODB.Recordset
Dim strSQL As String
strSQL = "select " & chosencol.Value & " as [FieldName] from Table1 where ID=1"
rsLookup.Open strSQL, CurrentProject.Connection, adOpenForwardOnly, adLockReadOnly
If rsLookup.EOF = False Then
txtValue.SetFocus
txtValue.Text = rsLookup![FieldName]
End If
rsLookup.Close
End Sub
When the button is pushed, the value from whatever column you selected will be returned. For this simple example, I'm always returning row 1's data.
I'm pretty sure you can't do that in straight SQL. However, you can create the SQL string in VBA code and save it as a query.
CurrentDB.CreateQueryDef("MyQueryName", "SELECT " & chosencol & " FROM MyTable")
Now, MyQueryName will be a permanent query in your database and can be referenced wherever you want.
If chosencol is a multi-select dropdown, you'll have to read the selected values into an array and then write the array to one concatenated string and use that instead.
I have a query within access that selects all the contacts for a particular company based on the CompanyID Field. And on my form i have a selection of labels of which will be populated with the query result. However i'm a little stuck on how i should populate the labels, as there will be more than one contact returned from the query..
The Query
ConactData = "SELECT * FROM Contacts WHERE CompanyID = " & CompanyValue & ";"
Obviously i can do
Set rst = CurrentDb.OpenRecordset(ContactData, dbOpenSnapshot)
Me.lblTitle.Caption = rst!Title
Me.lblFirstName.Caption = rst!FirstName
Me.lblLastName.Caption = rst!LastName
Me.lblEmail.Caption = rst!Email
Me.lblMobileNumber.Caption = rst!MobileNumber
But this will just select the first result from the table, how then, can i move onto the next result? If i'm right in thinking the MoveNext method will simply go to the next record in the table, not the query result?
Why use labels? Just build the form bound to the table.
Then in your code go:
Me.RecordSource = "SELECT * FROM Contacts WHERE CompanyID = " & CompanyValue & ";"
This means you don’t need a bunch code to fill out the form, it is done for you. And your example would not allow editing of data either. To write a bunch of code when all the display of data is automatic is a waste of developer time and resources.
In fact, why not leave the form bound to the table, and then use a where clause to open the form
eg:
docmd.openform "frmContacts",,,"CompanyID = " & CompanyValue
So it not clear why you writing all that code and doing handstands - it simply not required.