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?
Hello,
I have 2 tables.
1) Table A, which is a table of all 100,000 users
2) Table B, which is a table of all other users
I have a query qryA, which looks for everyone in table A with a certain type of job title.
I want to exclude anyone who works for a company that occurs in the table B from showing up in the qryA query.
Any ideas?
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.
How can I run a query on the table attached to show the number of UR's that were operated on. As you can see some of the UR have more than two procedure dates so I want to exclude duplicates. i have tried "count" but that just gives a "1" value for each UR on each procedure date
View 1 Replies View RelatedHello, I'm new to the forum and relatively new to Access. There's something I'm trying to do but I'm not sure if it's even possible so I'm hoping someone can help me out and point me in the right direction
the situation:
I have one very big table containing data for around 250 petrol stations. The data is collected monthly, so each site has a record relating to each month. E.g site A has data for month 1, 2, 3 etc.
The problem is that in any month, some of this data needs to be excluded from analysis. And this will vary over the months. What I want to do is run a query where specific records are excluded, for example, exclude Site A data for month 1 and 3, Site B data for month 2 etc.
I have another table containing a list of which site + month data is bad and to be excluded. Ideally I want to simply add to the list each month before I run the select query.
the question:
Is there any way to exclude records from a select query based on their details appearing on another table?
help would be much appreciated!
thanks
Catherine
I have one table that will consists of about 1,000 rows. I have another table that consists of product codes that we want to exclude from the report. I know how to include the two tables by joining, but I want to EXCLUDE the 2nd table of product codes. Basically, if any of the product codes listed on table 2 are on table 1, I don't want them to appear. So how can I do an exclude function in a query?
View 3 Replies View RelatedI created a report where is lists sales volume by day. I was asked to create a table where data can be excluded from this report. The exclusion table consists of only three fields:
Date Department and a check box
What do I need to do in the query to have it exclude the data listed in this exclusion table. The table only holds data we want excluded, not all dates and departments.
I originally added the table to the source query and made the criteria "False" for the check box but when the query runs it does return any data at all.
Please help!
I am building a query with a column of data, 'location number'.
I need to exclude any data where the location number is found in a pre-built table.
i.e. return all data except when the location number is found in the table.
Hi
I have a table that I am importing from FOXPRO DATABASE. When someone goes into the system and deletes a record, Foxpro does not really delete the records but marks it for deletion. There is no field to query on that I can see in the table, but when I go to Foxpro the record is "marked" for deletion.
Anyway to exclude these records when doing a query or importing the table?
Thanks
I have a table called 'maintable'. It has 5000 plus entries of employees with different fields. Every Employee has unique ID. One field is date of birth (dob). Normally more than one person can have the same date of birth. A form (maintable1) is created to enter data into this table.
In order to avoid duplicate entry of the same employee again with all his data, I wish to know if the same date of birth (dob) which is being entered now already exists for any employee to verify if the employee being entered is the same, if not then I can enter the data of new employee with the same date of birth.
So basically when I will enter data in a form for the dob field, if the value is the same, then a message that entry already exists, then the 'maintable' may open highlighting the same date of birth entry, so it can be verified if the same person is not entered again.
I want to run a query on a table that holds all speed information for our trucks imported from a third party. Some of the speed alerts in that table are not correct so we set up a second table managed by the users to enter a speed exception. So if we know that Main St in Dallas TX generates false alerts for speeding we know not to call the driver, the third party db speed limit is not up to date.
So I want my query to pull all the speed data from tblSpeedData, except leave out the records where the street and zip are listed in the tblSpeedExceptions.
I am trying to write a query that will check all records in a table but exclude the 10 newest records in the table.
The table is from a stock program i have wrote for the company i work for (i am a novice access user). what ive been asked to do is write a duplicate order system that will flag up if the order has already been packed.
the table logs the [OrderID] with each item [barcode] scanned out with a barcode scanner what i want is a query that checks the OrderID for a duplicate entry in the entire table but because the OrderID is entered with every item scanned i want to ommit the last 10 records as prety much no order has more than 10 items i understand this may not be 100% fool proof but it is close enough.
The other option is to have it ommit all records within the last 15 minutes there is also a [Time] and [PackDate] Field which im guessing could be used for this the time field records Now() and the PackDate records Date(). After searching the web i cant seem to find anyway to ommit the last 'n' records and the few things i have found with the Date("m",-15,Date()) doesnt seem to work
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.
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 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 RelatedHi
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???
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] .....
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?