Delete All Data At Once, Possible?

May 29, 2005

Because of a data-import I would like to import all new data into existing tables. Therefore I first need to dump all my existing test data throughout 30 tables which have several relations.
Is there a command in access or a batch script which performs a bulk delete among all tables?

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Compare Same Data - Delete

Aug 15, 2006

Hi guys,

I have 23k records

I have run the wizard to find all the duplicates according to one field.

So i have the results, except that some of the records contain nothing within the searchable field - so it returns all the records with nothing in the searchable field as duplicates.

How would i modify the query to perform the search but exclude the records with no data.

The SQL query below is the default wizard output for find duplicates, how would i change this??

SELECT Master.EMAIL, Master.MemID, Master.MEMBERNO, Master.FIRSTNAME, Master.LASTNAME, Master.POSITION, Master.ORGAN, Master.ADDRESS1, Master.ADDRESS2, Master.ADDRESS3, Master.ADDRESS4, Master.COUNTY, Master.COUNTRY, Master.POSTCODE, Master.SALUTATION, Master.MOBILE, Master.TELEPHONE, Master.WORKPHONE, Master.FAX, Master.RATE, Master.CLASS, Master.ADDREF, Master.DATEJOIN, Master.WEB, Master.Field26
FROM Master
WHERE (((Master.EMAIL) In (SELECT [EMAIL] FROM [Master] As Tmp GROUP BY [EMAIL] HAVING Count(*)>1 )))
ORDER BY Master.EMAIL;


Another thing is, once i have the result... which query would i use to actually delete the duplicate data??

Cheers, and advance thanks!! :cool:

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Jul 9, 2012

I have data, in which want to keep Job Id as primary key. Now, there are some Invoices as well as Invoice reversals with the same amount against those invoices. Check those Invoices & Invoice reversal of the same amount & delete that data of that Job ID. How to do it in Access or is there any other way to do it?

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May 23, 2005

I have a table in my Database that uses the feilds Location and partnum. I use a barcode scanner to generate each of these fields. The problem I am having is that when our part number is scanned it contains data such as "des--. 123456 --aa". I have been doing a find/replace on this data to remove the "des--." and "--aa" but I was wondering if access has a function to do this for me so that I can get a macro to check automatically for this type of problem. Any ideas?

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Jun 14, 2005

I've been testing my scripts so my database has a whole bunch of bogus records in it. I'd like to simply delete everything out of my orders table (there aren't any legit ones in there yet) so that I can start over when I go live and not have all that crap in there.

Is there an easy way to do this without re-creating a blank database and copying/pasting table only over?

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Feb 10, 2014

I need to delete duplicate rows (or create new table without them) but the duplicate is not the entire row of data.

Date Time LeagueMatchingId League HomeMatchingId HomeName AwayMatchingId AwayName
HomeScore AwayScore HomeRedCardCount AwayRedCardCount FTOU FTOverOdds FTUnderOdds
20121202 10/02/2014 20:34:02 17 FRANCE LIGUE 1 147 Lorient 154 Toulouse 0 0 0 0 1.5 0.88 -0.98
20121202 10/02/2014 20:34:02 17 FRANCE LIGUE 1 147 Lorient 154 Toulouse 0 0 0 0 1.5 0.88 -0.98

[Code] .....

In this example I am only interested in the first and last rows, since the ones in between have the same data in the last few columns. They are not true duplicates since the time stamp for each is different.

Currently thinking I need to compare each and every row to the prior row in VBA and delete if criteria match.

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Dec 31, 2014

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My goal is to get a huge amount of data paired down so that I can work with it in Excel.

I started with a 14 million record text file provided by a government agency. I used a text editor to break that into 7 2-million record files to fit into Access.

I figure I can filter each of those files down to 500,000 or so records, so that I can manipulate them in Excel. The problem is, when I open a text file in Access, Access insists on linking it, and then I can't delete data from a linked file.

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I am currently unable to delete any data from my table. When I highlight a row and right-click, the option to delete the record is grayed-out. I have deleted and recreated the table and relationships, saved the database as a new file, and compacted and repaired, but I am still unable to delete anything.

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Apr 9, 2005

Dear All:

I have created a form where data is entered. I wish to place a command button on the form and when it is pressed, it deletes data in specified textboxes. The texboxes are: LAST_NAME, FIRST_NAME, MIDDLE_NAME.

I assume this is done using vb, but I am clueless.

Any help is most welcome.

Regards,

Dion

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Dec 20, 2004

Hi,
I want to create a delete query that uses information stored in an external excel file. This file is constantly being updated so it isn't ideal to keep loading it into the access database. I need to use the excel file to remove any records appearing in my access table that are matching with the excel file. Make sense? Can anyone out there help - it this at all possible? Thanks,

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Dec 17, 2013

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On Access 2010 module I have a class that manipulate data (save, read, edit and delete) from this statement:

Code:
Private Const strNomeTblFonte as string = _
"SELECT ER.*, ET.intTipoExame, ET.txtNomeExame, FROM tblExamesTipos
ET INNER JOIN tblClientesExamesRequisitados ER ON ET.idExamesTipos = ER.intQualExame;"
Private Sub Class_Initialize()
Set mCol = New Collection

[Code] ....

Problem: I need to delete data from only one table (tblClientesExamesRequisitados) of a inner join, but only delete from the "wrong" (tblExamesTipos) table.

After going to msdn on title: Unique Table, Unique Schema, Unique Catalog Properties-Dynamic (ADO) I attempted to address the problem with this line in the Class_Initialize():

Code:
Recordset.Properties("Unique Table").Value = "tblClientesExamesRequisitados"

But only generates this: Run Time Error 3265 - Item not found in this collection...

I know, if I open another Rst and use a Distinctrow, or open only one table, as in "DELETE * FROM tblClientesExamesRequisitados WHERE intQualExame = " & miQualExame & ";" it will resolve, but, why "Unique Table" isn't functioning?

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Process Flow:
> Form pulls data from Query1
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Basically I just don't want the users seeing this (deleted) user in the list on a form. So maybe "hide" is a better term than delete.

Details:
Access 2010

Table "Employees" - holds username and some other user specific info.
Table "Hours" - holds username related data(how many hours they worked on specific dates).
Form "WorkHourEntry" - The form I use to allow the users to login and enter their data(hours).

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FROM Query4
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Mar 15, 2013

I'm an amateur (is there such a thing as having databases as a hobby?) with little training. I volunteered to organize a growing volunteer group I'm a part of by making a simple database for the volunteer office staff. One of the things I want it to do is make name tags for our weekly meetings. I don't want to print one for each name on our list because the list is over 400 names long with only around 35 regular attendees. I made two tables--one is the MakeNameTag table that lists regular attendees (it is a lookup field on the Names table).

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I tried it with a query but have to write two.

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I have a Table1 served by Form1..It is a list of: UnqID, process, quantity, totaltime(in seconds).I want to click on a record to bring up a filtered Form2 with the chosen record on it.What I want to be able to do is to now split the quantity (and the time) and put these new records back into Table1 and delete the original record

EG

ID1,10,write a report,2400

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ID3,5,write a report,1200

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I have a table called "EquipmentRequired" which is populated by 4 append queries,

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I want to delete certain records based on the selected date. However, I come across with this is error - Run time error '3464' (Data type mismatch in criteria expression).This part is highlighted in yellow. I even used the debug.print to test out if the sql statement is executed properly.

Code:
DoCmd.RunSQL DelSummarySQL

Here is my full code

Code:
Private Sub cmd_Delete_Click()
Dim DelSummarySQL As String
Dim StartRange As Date

[code]...

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I have a query based on two tables, joined on one field (this field is the primary key in Table A. Table B doesn't have a primary key). When working inside this query, it gives me the option to delete records. However, when I try, the row disappears from the query but then if I save and close and either re-open table A or the resulting query, that record is back. It doesn't actually delete. If I go to table A directly and delete it, it's gone for good.

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