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!
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 ?
View 1 Replies View RelatedI 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.
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!
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
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]
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.
View 8 Replies View RelatedIs 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
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???
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?
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?
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?
View 1 Replies View Relatedtable 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.
View 3 Replies View RelatedI 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?
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.
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)?
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.
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
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.
View 8 Replies View RelatedI 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
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.
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
I have a db that had to be designed taking into consideration a previous db. Merging went well. On several of the forms that feed the tables there are drop down boxes for entry consistency. Those drop down boxes have two columns. Ex is Counties field: Column 1 = County Name Column 2 = Numerical Designation.
On the form the dropdown shows the name for selection.
On the table it is a different story. On the portion of the table that came from the old db the field shows the Name. On the portion of the table that pertains to data entered since the new db, only the number shows. This also means it won't let me search by county name - only by number which doesn't work.
I have tried to compare properties for the old and new database for the forms, the tables, etc. and can't find a discrepancy.
1. How can I get the field in the table to show only the name and not the number?
2. Will that solve my search problem?
Oh, does it make a difference that there isn't any sort of pk or fk in the lookup table?
Thanks.
p.s. I am learning as I am going - so really complicated answers are difficult for me
Hi all,
have used the wizard to take values for a table dropdown field from another table
the table has
surname forename and class all of which reside in another table... ive tried to set up the bound columns so when you select a surname from the drop down the other two fileds also referencing that 6able are automatically filled in with their corresponding values.
so if the ref table had
smith john 1m
by selecting smith in the new tables drop down, the forename and class fields automatically select the corresponding values from the ref table..
im sure this is possible but cant get it to work and cant find anything on the web (although this is probably down to not knoing the right search string)
any ideas?
dubs
Is there anyway that access could create a drop down box within a drop down box? For instance, when a selection is made in a drop down box, it opens another drop down box with choices.And is it possible to link an inserted image from a form to open in MSPaint that when it opens, the image is already there?
View 1 Replies View RelatedHi All,
I am wanting to build a table which consists of all the queries and tables in the database.
I am expecting column 1 to have all the queries and column 2 to contain all the tables that make up the query. So the table will look like this:
Queries - Linked Tables
Query1 - Table1
Query2 - Table1
Query2 - Table2
Query3 - Table1
Query3 - Table4
As you can see a table can be linked to any number of tables.
Now for my actual question. I don't want to have to type in all the queries and tables. I would like to choose any query and table from a drop down of all possible queries and tables that are currently in the database - like a list, where the list contains all the possible values.
I would then select the relevant entry.
Any pointers would be great.
Thanks,
Evan