General :: Check If File Exists?
Nov 27, 2013
I have a table with several thousand records. Each record as a path field that indicates a specific file that is associated with a given record (not just a directory, it identifies a specific file). I'm pretty sure that most of them are correct but I've seen and been cleaning up paths that have had typos in them or were otherwise not setup correctly. Is there a way that I can generate a report or a list of some sort that would tell me exactly which file paths exist and which ones don't? or even just the ones that don't.
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Oct 27, 2005
hey guys
i'm trying to do something that i thought would be pretty simple. what happens is i have 2 files that get used, one by access and one by excel. they are both the same, except if one gets modified then the other doesnt obviously. (theres reasons for having the 2 files).
anyway. in access i want it to pick the newer of the two files (i assume this is using a fso system object?), if the one it normally doesnt use is newer, it should copy the new one over the old one and continue using the one it normally uses.
i cant simply use the other file as another user always has that file open.
any sample code on how to check if things are modifyed at a later date? and copy/pasting using those fso objects?
cheers guys
aaron
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Nov 4, 2013
I have code working for some workers here ,who used to save excel files in a folder and my databse upload those files into database and then do the rest.I am looking for a code in vba which,on upload button matches the file in table and if the file already exists ,it should not upload again in the table and if it does not exists it should upload . I have attached my code below :
Private Sub Command0_Click()
Dim strcPath As String
strcPath = "O:QA FilesQC ReportingPending Review"
Dim strcNewPath As String
strcNewPath = "O:QA FilesQC ReportingMovedFiles" & Format(Now, "yyyy-mm-dd h-mm-ss") _
& " Excel Files" & ""
[Code] .....
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Aug 19, 2013
Actually what I am looking to do is have an Access application check some Web site for the presence of a number. This number could be the Serial number of the application and if this number exists to maybe show a message in the aplication or even terminate the application.
A quick and dirty way is for User Serial number 254, to put on a specific page of a Web site say arbitrary file 254.jpg (invisible on the Web site). The application would check for the existence of this file and if it is there, it could take some action. Everything would have to be done in stealth mode.
The following code can tell me if a specific URL exists, in this case [URL]
Code:
Private Sub cmdArbitray_Click()
Dim blnDum As Boolean
blnDum = blnCheckURL("http://www.VisualDentist.com")
' If blnDum = True then it exists
End Sub
Public Function blnCheckURL(ByVal strURL As String) As Boolean
Const FLAG_ICC_FORCE_CONNECTION As Long = &H1
blnCheckURL = (InternetCheckConnection(strURL, FLAG_ICC_FORCE_CONNECTION, 0&) <> 0&)
End Function
1) How can I check for file 254.jpg?
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Aug 22, 2014
I'm trying to use DCOUNT to check to see if a date exists and if it does then i can cancel the input. The code im using is as follows however its returning datatype mismatch.
Code:
If DCount("[pick_date]", "tblPicker_Stats", "[pick_date] = '" & txtPickDate & "'") > 0 Then
MsgBox "Statistics for this date already exist", vbOKOnly, "Error"
End
End If
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Aug 28, 2012
I use a batch file to distribute the front end of a database application. Currently, everytime the user clicks the shortcut on her desktop, the batch file executes and copies the front end from a network location to user's local machine. The FE is updated like every couple of days. The users run the database more frequently.
I would like to modify the batch file so that it checks some attribute of the FE file to decide whether it needs to be updated. I can't rely on file size, since the FE includes temporary tables. I essentially need something like the "tag" property of form controls, only for files. It would be ideal if it was me who sets this property, like "version number". Except it has read without opening the file itself.
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Jul 19, 2006
Hi, I have the following problem which I hope someone can help me with:
I have a form which is used to enter data into a table. One of the fields is 'Code'. I want the form to check when data is enetered into this field is it already exists, ie if the code is already present in the 'code' field in the table, and if it is it should give a warning message, if not then continue as normal.
Any help would be greatly appreciated, thanks in advance!
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Mar 21, 2013
I have a form used to enter new contacts. I would like to insert a query or macro that would automatically to see if the name (first and last) already exists in the table to which this form is attached. If the name exists, I want to open the existing record and add information to it. If not, I want to enter the information as a new record.
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Nov 20, 2006
Hi
I have a problem where a user would enter a project code eg 113-099. I put in a list box that filters all the project codes for instance if the user enters 1 it will show all codes starting with a 1 and every additional number they enter it filters the list box to show which codes already exists! I hope this makes sense.
The problem i have is i need to check when they enter the project code that it is a unique value. The Database developer we got in didnt index this field as no duplicates allowed and as result we have large amount of duplicate project codes.
I have started to experiment with Dlookup but with no great success.
If anyone can help it would be much appreciated as i dont have much experience with access.
The field name on the form is
[forms]![projects_frm].[project_job_number] and the table which stores this information is [projects]
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Aug 12, 2012
Is there any way to check if a particular table already exist in MS Access Database using ACCESS VBA?
Actually I'm creating temp table on the file but I want to check if temp table already exits then need to delete before creating.
e.g. I can check if query defniniton already exists using below code:
Code:
If .DCount("[Name]", "MSysObjects", "Left([Name],1) <> '~' AND [Type] = 5 AND [Name] = '" & strTempQueryName & "' ") <> 0 Then
.DoCmd.DeleteObject acQuery, strTempQueryName
.CurrentDb.QueryDefs.Refresh
End If
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Dec 4, 2006
Hello all,
I have a form that looks at my "master table" where users put in general info about a sheet of material.
There are two combo boxes on this form, Batch# and Lot#. They will use the same Batch# and Lot# for many sheets. Every time a new batch and lot are entered, this will bring up a pop-up form where the user needs to take a measurement of that batch and lot for QA. This will go into a different table, where the batch and lot #'s are unique(many of the same batch#'s with different Lot#'s).
After the lot# is entered, I want to run a query in VB that looks for those unique identifiers, and if it doesn't find a record, my pop-up form will run.
This is probably something very easy....... It was a very long weekend and I'm tired of thinking.
Thanks
Scott
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Feb 29, 2008
Hey all,
Tables
ProductsProductBrandSize
PurchaseDetailProductPriceQuantity
Forms
frmFoodSub
Combo BoxesiProductiBrand
TextboxsiSizeiQuantityiPrice
For a couple of days now I've been trying to devise a way to achieve what I want, but I just keep going in circles and hitting errors (thanks to forum members, I've been able to solve most of them.) So, here's what I want to be able to do:
Input a product using the iproduct combo box (which gets its list of values from the Products table); its brand, using the ibrand combo box; and its size using the isize textbox, all in the frmFoodSub form. I then want it to check to see if an exact record already exists (ie. the same product, same brand, same size.)
If it doesn't exist, I want to create it. If it does, I want to do nothing. Then I want the product - either the one I just created, or from a record that already exists matching the iProduct input - to be input into the product field of the PurchaseDetails table. I then want to use iQuantity and iPrice textboxs, already linked to the PurchaseDetails table, to input the newly added product's quantity and price.
I hope my explanation was clear enough. I'd appreciate any help with this you may be able to offer.
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Jan 2, 2014
I have created a form which enbles users to enter data into the fields which will add a new record to my table. What I am trying to do now is to create some kind of validation rule that will check whether the record already exists.
I need it to work this way; there are four input fields- 3 text and 1 is a date filed. When the user enters a new record they are not allowed to create a record that conatins the same combination of values. So if one record has for example filed 1 = 1 field 2 = abc field 3 = def; then no other record can have the same combination of values.
If the user enters an already existing combination there would be an error message saying which field is incorrect. If the combination doesn't exist it would add the record and display a message that the record was successfully added.
How can I do this?
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Sep 9, 2014
I have the following vba to check if a table exists, but I can not find on the net how to check if a form exists, I tried to modify this script but there does not seem to be a formdef
Code:
Sub table_Exists()
Dim dbs As Database
Dim tbl As TableDef
Dim dbsExist As Object
Dim tablename As String
tablename = "Table2" ' Your Table Name
Dim exists As String
[code]....
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Nov 24, 2014
I have an application that I have automatically checking to see if tables are valid and connected, etc. If the app finds that the tables aren't connected or aren't working, it automatically tries to re-connect those tables in the background without the user's knowledge. The time I'm having trouble is if the SQL Server doesn't exists (the back-end tables are on a SQL Server). I would like to check to see if the SQL Server exists before I try to re-connect tables so that no SQL Errors pop up but I'm not sure how to figure that out with VBA.
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Sep 10, 2014
I have a form, which has a combo box which a user can select an employee - the combo has three columns (Employee_Number, Surname, Initials) although the Employee_Number column is set at a 0 width, so not visible.
The form is bound to a query which only shows records that are 'Active'
When a user selects and employee in the combo box, I want the AfterUpdate event to check and see if there is already an active record - if there is, throw up an error message and then reveal a couple of buttons giving choices what to do next; if there isn't an active record, reveal three textboxes and then populate those textboxes with the values from the three columns from the combo.
The bit that is sticking me is the search - - I have tried DCount, but can't seem to get it to work
Here is the section of code that I am battling with:
Code:
Dim EmpNo As String
EmpNo = cboEmp_Check.column(0)
If DCount("Employee_Number", "Incomplete_Training", "Employee_Number=" & EmpNo) > 0 Then
MsgBox "Existing", vbOKOnly
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Feb 6, 2013
I am trying to check if a record exists in a table.
Dim cert As String
Dim existingRec As Variant
existingRec = DLookup("[Certificate]", "[Fire]", "'cert' = 'cert'")
If existingRec = Null Then
Else
MsgBox "The Certificate " & existingRec & " is in the database"
End If
Note - Certificate is a column in the table "Fire"
Problem is that existingRec only finds the first value in the Certificate column, How do I get to check the entire Certificate column?
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Jul 20, 2005
Hi there
I recently have been given a database to get into shape.
One of the main problems is that when a person enters data into a form, They until the leave the form are not aware if the primary key has been used before.
Let me try explain.
I have a booking number (which I have only in the last couple of days made a primary key and also changed it so there can be no duplicates)
I have changed the form around alittle so that the person entering the new data must start with entering the booking number.
How can I make a piece of code that once the booking number textbox loses its focus the code then checks the table to see if that booking number exists. I would like for the person to establish that they need to enter a new booking number before getting to the end before seeing that the booking number already exists.
I hope I am making some sense.
TIA
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Apr 16, 2013
Background: In my Access FE, I have created a "linked table" to a file on our AS400 database. I know I can check the MSysObjects table for the linked table name, but sometimes the file actually does not exist on the AS400.
The file can be in one of three states.File exists with data.
File exists, but is empty.
File doesn't exist.
Question: What is the best way to determine the status of this linked table (file)?
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May 28, 2013
Using VBA (in Access), what code should I use to check if a client name already exists in a table.
Say, client name is "Smith", my table is called tblClient and the field name in the table is called fldClientName.
I just need to do the check, that's all.
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Jul 14, 2014
I can already send emails out as PDF files when an email address exists, however, I'm trying to validate whether or not an email address does actually exist. My problem is, there are four possible locations where an email address could be: MainEmail or Contact1Email or Contact2Email or Email (the last one - Email - is in a separate table).
Four text boxes exist on the form that is being actioned (the form is based on a query to extract the relevant information) and are available to test for an email address being present. What I'm struggling with is ensuring that the 'To' box in Outlook always gets populated or Outlook chucks a hissy fit. I have been trying various IF Then Else and Do Loop plus a myriad of other ways but none are reliable, especially if no email address is present which can be the case.
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Aug 19, 2014
I currently use
Code:
strSQL = "INSERT INTO tblDepartments (Department) VALUES(txtnewdept)"
To insert new departments into a table, however id like it to check to see if a department name exists in tbldepartments.department to prevent duplicates being added?
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Oct 29, 2013
I have a database that involves a lot of data about ppl and I'd like to prevent duplicate entries.
I have a form that gathers data. I'd like to have a button after name, surname and birthday are written.
A click on the button would display a msgbox that says that person already exist, maybe even with the added - edit the old entry/add new record anyway/abort options.
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Jul 2, 2014
The problem I have is, that I need to insert an apointment into de database but first I need to verify if there is a record or an apointment in that room that day the same hour, if that is so send a msgbox saying an apointment already exist in that room this day at this hour.
i tried using dlookup but it only works in one record using just one criteria
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Sep 8, 2014
I have a module that I am using to verify that file paths in my table point to valid jpg files. The table has grown quite a bit since I first created the module and it has gotten to the point where it's taking too long for the module to execute. I'm in the process of trying to change the record set for the module from the table to a stored query procedure but it's turning out to be a little tricky for me. When I execute the following module, I'm not getting any error code, it just doesn't seem to do anything at all. The bits in red are the parts I've changed. Before that the module executed as I expected it would.
Code:
Sub TestIt2()
Dim strFileName As String
Dim db As DAO.Database
Dim rs As DAO.Recordset
Set db = CurrentDb()
Set rs = db.OpenRecordset("QryUpdateRevisionHistory")
[code]....
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Nov 25, 2014
I am storing values of pictures and the location of them in a table, this works fine!... using OpenRecordset. The problem is that when the function is called to store the information, it just keeps adding the same values of each file in the folder over and over again in a word "Duplicating" the information.
I have tried various methods using the OpenRecordset, but cannot seem to find the correct manor of applying the code.
Below is the function I have for storing the data...
Code:
Public Sub GetFilesNamesFromFolder(strFolderPath As String)
On Error GoTo ErrorHandler
Dim objFSO As Scripting.FileSystemObject
Dim objFolder As Scripting.folder
Dim objFile As Scripting.File
[Code] .....
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