If Statement Depending On If File Exists
Jun 11, 2013
I am working with my back end on dropbox. and the frontends on other peoples Pcs, Is there away to run an if statement stating,
If (the back end Locked* file exists), then
msgbox "Someone Is in the Database"
Else
docmd.OpenForm and so on.....(I know how to do this part
The reasoning is that it creates conflicting copies when you edit data from more then one Front End. and it is difficult to copy the conflicting data into the actual DB.
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Apr 14, 2005
VB useses the FileExists funcion as follows:
object.FileExists(filespec)
Which returns true or faulse and where filespec is the file name and object is the name of a FileSystemObject.
What I need to know is what exactly a FileSystemObject is and if anyone could possibly give an example piece of code working?
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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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Oct 30, 2014
I'm trying to view a pdf in a form if the file exists. My search has brought me to trying the WebBrowser control. I have it loading the file but it launches Adobe instead of just showing the PDF in the window on the form.
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Dec 15, 2014
How to search for a file using the dir function, however, i need to search for a file from a main folder which may have several sub folders.
I am having no luck so far - i understand there is a recursive search facility but im not sure how i can get this to work with what i am trying to achieve.
This is the code i have for the dir function:
If Len(Dir("as-tamworth-50midlands.qa$TamworthLaminate C of CsCircuit Foil" & CofC & ".")) = 0 Then
MsgBox "This file does not exist"
Else
MsgBox "Yippee"
End If
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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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Dec 23, 2004
Hi guys...got a problem here....
I got a query which joins two table....
Individual
fid1
fQSname
fQSRegno
Point
fid2
fQSRegno
fQSPoint
Tables join using fQSRegno.
Scenario is
Tbl Individual contains all the members info.Tbl Point contains point given to members who attend courses. Problem is when I created a query...
Query1
fid3
fQSname
fQSRegno *from tblPoint
fQSPoint
the data shows only members who got points. Is it possible to include member who don't have point like new registred member to show in this query....
TQ
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Jun 5, 2013
I'm trying to figure out at what point an error message occurs while a database is closing. This problem only occurs if someone clicks on the red close button on the top right of the screen when there are several forms open. If the user exists normally there is NO problem.
I am attempting to use the print statement to write to a text file to track what is happening as the database shuts down. Unfortunately, the open (print) statement, when issued, zaps any prior contents which precludes having a full printed record. I am hoping for a print syntax that would allow appending.
Code:
Open "ErrorReport.txt" for Output as #1
Appended text to the file to show what is happening in that event.
Close #1
The program, in closing, does stop with an error message that a certain file can't be found. But when I click on debug, the program simply closes. I have also commented out VBA references to the file that can't be found, but the error still persists .
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Feb 12, 2014
I have the following Select Statement:
SELECTTenant.ID, Tenant.[First Name], Tenant.[Last Name], Tenant.Address, Tenant.City, Tenant.State, Tenant.Zip, Tenant.[Home Phone], Tenant.[Cell Phone], Tenant.[Work Phone], Tenant.[Rented Unit],
Tenant.[Security Deposit], Tenant.[Move In], Tenant.[Move Out], Tenant.TenantID, Tenant.UnitID, Tenant.PropertyID, Tenant.OwnerID, Owner.Company, Owner.ID AS Expr1, Property.[Property Address],
[code]....
Now, I know that something in the UPDATE statement does not match my select statement.What should my Update Statement be, in order to update all the columns in the joined tables?
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Jul 14, 2005
I have 2 identic tables: T1 and T2 which contain only one field NR.
T1 contains the data:
1
2
3
4
5
6
7
8
9
10
11
12
T2 contains the data:
5
6
7
8
A
B
C
D
I want to select all the records found in T1, but not found in T2. So, I wrote the following SQL query:
SELECT T1.NR
FROM T1
WHERE NOT EXISTS
(select T2.NR
from T2);
Unfortunately, this query doesn`t return any record. And the strangest thing is that the query:
SELECT T1.NR
FROM T1
WHERE NOT EXISTS
(select T2.NR
from T2);
have the same effect like:
SELECT * FROM T1,
I mean it returns all the records of T1. I mention that the query was written in Access. What I have to do? Can anybody help me? What solutions do I have? I need a query, not a VBA code!
Thank you in advance!
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Oct 13, 2005
I need to make a query that only selects data that is in another query/table.
I have tried to do this using a query with IN criteria as follows.
SELECT fldOne,fldTwo,fldThree,
FROM tblOne
WHERE (((tblOne.fldOne) In (Select fldOne from tblTwo)) AND ((tblOne.fldTwo) In (Select fldTwo from tblTwo));
But that isn't working. Any ideas as to why?
I think that the answer might be using the EXISTS reserved word, but I don't know how.
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Mar 23, 2006
I have a table (tblSales) with these fields (RecDate, Code, Type, OrderCount).
I also have a linked table (lnkSales) with these fields.
Daily I append the data from the lnkSales to tblSales.
The tblSales table must have a record for each code daily.
These are the codes (01,02,05,07,09,10,15).
I need to automatically add a record for each code that wasn't appended.
For example,
lnkSales contains:
03/22/06 01 Mc 3
03/22/06 02 Mc 1
03/22/06 05 Mc 1
03/22/06 07 Mc 2
03/22/06 10 Mc 1
When appended to tblSales there is no record for code 09 or 15.
I need to add these records to tblSales
03/22/06 09 Mc 0
03/22/06 15 Mc 0
Can someone explain the best way to accomplish this?
Thanks.
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Sep 13, 2005
Hi again
How can I do an existence test on a table in my Access MDB in a script. The job is to determine if a temp table exists, and if so, then to drop the table.
What syntax would I use to accomplish this in form event code?
Thanks
EzRider
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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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May 18, 2006
I keep getting the error message "Table TempMsysAccessObjects already exists" when I try to compact/repair my database. The only help I've found in the MS knowledge base just says to delete the table. I keep deleting it, but it keeps coming back. I've tried the decompile cmd line option, no change. Do I need to just rebuild this db, or what?
Access 2002.
Thanks for any ideas.
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Dec 12, 2005
I'm running the following line:
dbs.Execute ("DROP TABLE [tbl_No Certs]")
the problem is that sometimes the table doesn't exist... Instead of trapping the error code, is there a way I can check to see if the table exists? If it doesn't I'll simply skip this step of my code and move on.
Thanks!
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Dec 13, 2005
I have tried the attached code from a previous post http://www.access-programmers.co.uk/forums/showthread.php?t=98727&highlight=table+exists but some of the code doesn't work on Microsoft Access Project.
Does anyone have any ideas how I would amend this code so that it works?
Regards
Carly
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Jul 18, 2006
I have created a query/report that meets all necessary criteria except that it contains multiple TYPEs per employee. This isn’t an issue unless one of the TYPEs is ‘W’.
As TYPE ‘W’ supersedes all other TYPEs, any others that meet the other criteria should no longer be reflected in the query/report.
Is it possible to add criteria for this?
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Jul 31, 2006
Hi,
I have a java app connected to a MS access database. I need to run an sql command like
"drop table if exists"
You know, so it only tries to delete the table if its actually there. Im not sure how to do this with an access db.
Also what is the difference between delete and drop.
thanks v much for any help!
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Aug 9, 2006
I know this can be done i MySQL and with SQL Server but is there a way to drop the table but check if it exists first in Access before running a query ?
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Aug 24, 2006
Hi Guys,
Is it possible to find out if there is an Index on a table or not? I am using VB6 and Microsoft Access database? please don't ask y!!!
TIA
STA
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Feb 12, 2007
I have 2 tables
TKYOKUMD01 and TTOKUKMD01.
So Im supposed to get the records that aint found by this query in the TKYOKUMD01 table:
SELECT a.* FROM TKYOKUMD01 a, TTOKUKMD01 b WHERE a.KYOKUSYOCD & a.BUNSITUCD = b.KYOKUSYOCD & b.BUNSITUCD
Easy right? All I have to do is use NOT EXISTS Right? So I did, hence:
SELECT * FROM TKYOKUMD01
WHERE NOT EXISTS (SELECT a.* FROM TKYOKUMD01 a, TTOKUKMD01 b WHERE a.KYOKUSYOCD & a.BUNSITUCD = b.KYOKUSYOCD & b.BUNSITUCD)
No records returned, so maybe all is good and happy in their relationship interconnected world. So just to check I inputted 99999 for KYOKUSYOCD and 9 FOR BUNSITUCD in the TKYOKUMD01, now clearly it should appear right? Coz its there, on the blessed SQL code. BUt the I ran it, BAM, no results? Whaja...juhh...
Please please please help me with this, is there something wrong with this statement coz Im pretty sure I was right :(
Oh and I have 24,000 records in the TKYOKUMD01 table and 18,000 records on the TTOKUKMD01 table, weird eh? Every one in the 24K table is in the 18K table? Like, what I said, Whaja...juhhh....
Please help :D
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Mar 12, 2007
(hard being a rookie)
On my Form, I want to have a query look at one specific field for a number (1). If the number is found then I would like to have the query do basic subtraction on two other fields. (one from each table)
What I have so far is one unbound text box with the following,
=IIf(tblDaStrategy!DaNumber=1,(tblDaStrategy!DaTar get-tblDaReport!DaActual1))
Simply put, if one field has the number one in it, then take the other two fields and subtract (ex. 100-75) to display 25.
It's not working. I keep getting the #Name?
Update: I think I got it. I went back to square one and made a master query that contains the data from both tables. Then I bound one of the forms to the query. I updated my IIF statement and poof. It seems to be working. Now, where's the Asprin and my pillow?
Update 2: Bummer, now my magical 25 is in place but now my form is locked tight. Guess I need to consider abandoning this concept and simply producing a report with the 25 on it. Unless someone out there has a better idea.
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