Delete Table If Exists

Feb 1, 2006

How to delete table if exist using VBA. I know this was in forum but I can't find the answer. Please help its urgent.

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Help Needed :If Table Exists, Then Delete Table

Jun 6, 2006

I need urgent help, I am required at my job to come up with a command that will check to see if a table exists, and if so, delete the table. The whole process goes like this:


There's a form, and a listbox. 2 buttons...1 is import a file and 2nd is generate report. In the listbox theres 3 excel files. You select one excel file then click on Import, followed by clicking on Generate Report button.

The whole technical process is this:
1. A csv file is imported into a temp table
2. A temp table is created and named "_ImportedSKUS".
3. An append query is exectued to add the data from the "_ImportedSKUS" temp table to the final table, "Imported SKUs".
4. Then the temp table, "_ImportedSKUs" is closed and deleted.

I have a delete command at the end of the sub, which goes like this:

DoCmd.DeleteObject acTable, "_ImportedSKUS".

But I'm also need to generate an If statement before the loop that will check to see if the "_ImportedSKUs" table exists, if so, delete it (using same code listed above) and end if.

Can anyone help me out here???

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Table TempMSysAccessObjects Already Exists

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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Checking To See If A Table Exists.

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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Checking If A Table Exists

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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Drop Table If Exists?

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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Drop Table If Exists

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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Check If Value In Table Already Exists

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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How To Check If Table Already Exists

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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Excluding A Field Which Exists In Another Table

Mar 10, 2006

Hi All,

Say you've got 2 tables and you want to extract data from table 1 but exclude all records from table 1 which have a field value existing in table 2?

Table 1 fields:
Test_Code
Test_Desc

Table 2 fields:
Test_Code

Therefore, I would like to query out from Table 1 all Test_Code values which do not exist in Table 2. Any ideas please?

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Check If Record Exists In Table

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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How To Verify A Linked Table Exists

May 25, 2014

I have a group of databases, with one that I keep global values in (among other things).On initial load, I link the table to other databases, but the linked tables pile up.How can I verify the linked table exists, so I don't have to link it again?

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Save Record Only If Same Exists In Another Table

Jan 7, 2013

table A has 10 records where 1 field is set as REQUIRED/UNIQUE. the table B does not have any record but have a same field like table A. what I want is that if user insert the record in table B it should first check whether record is already present in table A or not, if already exists it should not accept insertion. and if not already there in table A it should insert record in table B.

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If Account Number Already Exists In Linked Table

Oct 9, 2006

I have a table called tblAccounts and a form called frmEnter_new_accounts. In my frmEnter_New_Accounts form is a Text Box for Account #. I want to have it so that when the user enters an account # it checks the tblAccounts table for a duplicate account # and then displays a message box (or Pop-Up form) to tell the user that the Account Number entered already exists. I would also like that box to offer the user the option to either Close that form without saving or return to the form to reenter a different account #.

I know I would probably do this in the LostFocus event or BeforeUpdate.

Does anyone have any ideas or samle code to assist me in this adventure?

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Modules & VBA :: Distinguish If Data Already Exists In A Table

Aug 22, 2013

I currently need a way to check to see if a a field already exists. To be exact I have an access application that imports data from multiple sources and saves the file name of these imports into an import tracker table. The table has four fields, file name, Date Imported, Import Type, and Number of Records. I am writing some code that checks a Boolean given by a form. If the Boolean is true It skips over checking.

If it is false It needs to check my import tracker file names to see if the file was already imported. If it was then it will skip over the file and the algorithm will check the next file given by an array. So I was wondering..How would I go about making it check if the file already exists in the table. I was thinking of turning the File Name Field into a primary key, since there will only ever be one File Name of every type.

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Tables :: How To Check That Linked Table Exists

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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Tables :: Check If Client Name Exists In Table?

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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Table Record Entries Exists But 0 Shown In Form

Jul 23, 2005

Hi,

In the current db there are some tables and queries, forms designed around them

With one table Test
http://members.optusnet.com.au/~lukechang/access/table_d.JPG

That has 3 records in them
http://members.optusnet.com.au/~lukechang/access/table.JPG

Just won't show in form anymore, at this stage
http://members.optusnet.com.au/~lukechang/access/form.JPG

The Form was working previously. This is the second time this problem has came up, I thought it would go away if I made a new form and pasted all the controls and codes. It indeed went away for a while until this problem hit me again...

This db is in Access 2000 format and designed using Access 2003

I would appreciate if anyone is willing to point me to the right directions, many many thanks in advance

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Tables :: Prevent Adding Records If Already Exists On Another Table

Jan 2, 2013

Table in my access 2010 is configured to have a unique records (no duplicates)which has now records more than 2000 so i copied the table and pasted Structure only. what i would like to have is that new table which presently is empty should not add any record which is already available in old table. While entering data in new table i would like users to see the error if they try to enter the record which was previously entered in old table.

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SELECT Query To Not Include Record If Already Exists In Another Table

Aug 25, 2015

I have 2 tables:

Query_Rates (Actually this is the result of a query):
Unit
R_Date
Sold_Rate
A
24-AUG-15
145

[code]...

So what I want is a list of all the records from the Query_Rates table where the absolute differences between the sold rates between Query_Rates & [Sent till date] (matching the unit # and the dates) is greater than 1 and the record shouldn't be displayed if it is already present in the [Sent till date] table. But if you notice the first record which has unit A is already mentioned in the "Sent till date" table and shouldn't be repeated again in the query result.

The desired out put should be:

Unit
R_Date
Sold_Rate

X
25-AUG-15
200

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Modules & VBA :: Query A Table To See If Record Exists With Particular Field Blank

Mar 14, 2014

I am trying to achieve the following - I want to query a table to see if a record exists with a particular field blank. If so, I would like to prompt the user for data.

In real world terms, when assigning an item to a user I would like to first make sure that the item is not already assigned to somebody else. I have 4 fields, UserName, Item, IssueFrom, IssueTo. So when an item is assigned to a user, the first 3 fields are populated and the IssueTo remains blank, until that item is assigned to somebody else.

At the minute I have nothing in place to prevent a user from assigning the same item to multiple users and having multiple records for the same item in the table.

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Subquery EXISTS NOT EXISTS ...

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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Modules & VBA :: Copy Record To History Table And Then Delete It From Main Table

Jul 9, 2014

I have a form with a sub form. when a record is choosen in a combo box the sub form is filled out with a record.

what I am trying to do is have a button that will copy that record to a history table then delete it off the the main table.

I cheated by using the wizard to get the code to delete the record but I am having troubles modifying the code to copy that record to the history table. Here is the code below. I have tried to insert code in several places but it just errors out.

'------------------------------------------------------------
' Master_tbl_sub_fm
'
'------------------------------------------------------------
Function Master_tbl_sub_fm()
On Error GoTo Master_tbl_sub_fm_Err
With CodeContextObject
On Error Resume Next

[Code] ....

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Queries :: Delete Main Table Row Depending On Sub-table Row If It Is Null

Dec 25, 2014

i have two data tables, one is depending on the other. now i need to delete the main table row depending on the subtable row if it is null.

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Delete All Rows In Master Table If Identical In Second Table - SQL

Jan 13, 2006

A SELECT works:

SELECT *
from mastertable
INNER JOIN secondarytable
ON mastertable.Identicalfield = secondarytable.Identicalfield

But none of these do:

DELETE
FROM mastertable
INNER JOIN secondarytable
ON mastertable.Identicalfield = secondarytable.Identicalfield
**Incorrect syntax near the keyword 'INNER'.**

DELETE
FROM mastertable JOIN secondarytable
ON (mastertable.Identicalfield = secondarytable.Identicalfield)
**Incorrect syntax near the keyword 'JOIN'.**

DELETE
FROM mastertable
WHERE (mastertable.Identicalfield = secondarytable.Identicalfield)
**The column prefix 'secondarytable' does not match with a table name or alias name used in the query.**

DELETE
FROM mastertable
WHERE IN (SELECT *
FROM secondarytable)
**Incorrect syntax near the keyword 'IN'.**

Can anyone help? This should be easy, shouldn't it?!
Thank you.

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Queries :: Delete Records In One Table Dependent On Another Table

Apr 17, 2015

I have a table which lists amendments (amendments history file) which need to take effect of another table (M0070), I can select the records fine and so the sub query looks to be okay but I'm missing something (probably obvious) in the deletion query where by it does only delete the records selected but everything (I know that the asterisk is wrong in the code below but I'm not sure what to replace it with).

At this point I'm trying to delete all records for a specific employee on a specific contract (they can be 1 or more employee records for that individual on a contract - and they could exist on multiple contracts).

DELETE *
FROM M0070
WHERE EXISTS
(SELECT M0070.[Contract No], M0070.[Contract Name], M0070.[Employee No], M0070.Forename, M0070.Surname, M0070.Branch, M0070.[Long Desc], M0070.[Emp Post Start Date], M0070.[Days per week],

[Code] .....

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