After Delete Trigger On Parent Table
Jan 25, 2014
I am new to MS access. I have to delete records from the 2 tables, when the parent record gets deleted. I have a delete button in my form wherein the user deletes the particular record from the parent table.
When the delete button is pressed, the parent record gets deleted from the table. But I need to write a after delete trigger on the parent table to be able to delete the relevant records from the other two child tables, based on the current parent id.
what code should I write ? and should I locate the records in the before delete trigger and then write the code to delete the child record in after delete trigger ?
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Aug 11, 2005
Well, my newbie status in db development has reared its head. I knew from the beginning I didn't want to have cascade delete when deleting a clinic (parent) from the db. Problem is some queries in other areas need some clinic info and if the clinic is deleted, it won't be available. Right now I'm thinking that an easy way out is only allowing a delete if it has no attached records. If the clinic is no longer used, they can just write in the memo field that this clinic is no longer used. It's not a large db and there won't be hundreds of clinics so it may not be too bad. Any other suggestions?
scratch
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Mar 1, 2015
I have a parent form and connected to it is a subform. On the parent form I have a checkbox which enables and disables fields on the parent form and also hides the subform.
What I want to do is when the user unchecks the checkbox, this action also deletes the associated subform records, if there are any.I'm sure that this can be done with an SQL Delete query in VBA.
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Jan 5, 2005
Hi,
I use access database for a website. I would like to run a trigger in a specific table when updating a record.
Is it possible to create table level triggers in Access at all, if it is, pls. give me short direction. (as far as I know there are lot of events, but this events occur only in native access application only, and can not be handled outside of access, am I right?)
thanks a lot
solesz
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Sep 8, 2014
I have a parent table (tblLabels) and a child table (tblRevision) where the revision history for the parent table is kept.
The parent table is populated via an excel import and may have several records imported at once. Instead of having the user manually enter a new record note in the child table for each record imported into the parent table, I've created a form that collects the necessary data (date, person who added the record, person who authorized the record, and notes) and then creates a revision history for each new record.
This is what I have so far:
Code:
Private Sub cmdAddNotes_Click()
Dim strSQL As String
Dim RevisionDate As String
Dim RevisionRevisedBy As String
Dim RevisionDesc As String
[Code] ....
When I run the code nothing happens. No error, no new records create, etc. My suspicion is that I may need to use an INSERT INTO query instead of an UPDATE query, but I'm not sure how to go about matching up the foreign keys if that's the case.
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Oct 16, 2007
Hi
I have a parent-child base table (accounts) with the following fields:
- id
- parentid
- name
every record's parentid is either 0 ( which means it is in the most upper level) or another record's id (which means it is the other record's child)
different levels of records are being used. I mean some accounts are used in the most 1st level with no childs, some in the second level, ....
I need a query to list the accounts which are not parent to any othe records, regardless of what level they are defined.
Thanks again for the help.
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Feb 25, 2014
I've a table that looks something like this:
id, parentID, name
ParentId links to id.
Now I would like to get all "child-nodes" for a given parentId.
The recursion goes 4 levels deep.
What I've so far is:
Code:
SELECT t1.id, t2.id, t3.id, t4.id
FROM tblPersons AS t4
INNER JOIN (tblPersons AS t3
INNER JOIN (tblPersons AS t1
INNER JOIN tblPersons AS t2 ON t1.id = t2.parentId) ON t3.parentId = t2.id) ON t4.parentId = t3.id
WHERE (t1.id=1234);
Ok that works but the result is quiet ugly
What I get is something like
Code:
id1...id2...id3...id4
1 20 50 51
1 20 50 52
1 20 60 53
1 20 60 54
Now I could use VBA to take a look at each column and store all unique numbers... but is there a more simpler way?
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Jul 17, 2013
I have a table that is a list of all of my events. Each record of events should have a child table that list all of the things that happened at the event. When a new record (event) is added how can I have a new child table created and linked to that record. Also I have a blank table to serve as a template for what each child should look like. How do I make sure this occurs? The child tables can have the same name as the index. I am just using numbers 1- for the index with 1 being the first event and so on?
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Jul 6, 2006
Sorry this is so long but I am trying to make it as detailed as possible...
The Setup
My database is similar to the sample "Service Call" db. I have a main table called "tblTT" which has an autonumber primary key. The table also contains several foreign keys such as UserID (not an autonumber) from "tblUser", TechID (also not an autonumber) from "tblTech", etc. I have the relationships setup with "Enforced Referential Integrity" for both updating and deleting records. Each relationship has a RIGHT OUTER JOIN ("Join 3" in access) so that all records from child (tblTT) and only equal from parent (tblUser, tblTech, etc.) will be included. I have a form for nearly every table which serves different purposes but the main function of the DB is to create new Trouble Tickets (TT's), a.k.a. service calls. Therefore the main form used is my "frmTT" form in add mode. The form contains all the fields from my "tblTT" table and contains (directly) no fields from any other table (I guess indirectly it contains fields from all the parent tables...).
The Problem
When I pull up "frmTT" and try to create a new Trouble Ticket for a user that does not yet exist in the table "tblUser" I get the error "You cannot add or change a record bcause a related record is required in table 'tblUser'".
What I want is for my users (the "Techs") to be able to create a new Trouble Ticket without having to worry about populating the "tblUser" table (and other parent tables) first.
My Solution
I was going to (and unless someone can find an answer for me still will) fix this using VB script by setting up a query to check all the parent tables for the values in their corresponding fields in the form. If the query returns no results an "INSERT INTO" statement will run to populate the parents tables so that the form will save itself into the Trouble Ticket table ("tblTT").
I feel that this is a huge work around and not the proper fix. I would prefer to do this the right way both to have a correctly setup DB and for future reference. Can anyone help me with this?
Thanks,
Andy
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Apr 30, 2015
I have a table I'm trying to query information out of. Key fields are below:
RecNo (Key)
ParentRecNo
Description
I need to have a "record" in the query show both the description of itself, as well as it's parent. I was hoping to use Dlookup directly in the query design. If there is no other way, I suppose I could create a temp table and look through the recordset in VBA and dump them into the temp table, but like I said; quick and dirty was the hope here, it's for my own use, and the tables aren't large 50-100 records is what I'll be pulling out when I use this.
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Dec 1, 2012
here I have capture what is error actually when i make a DLOOKUP wizard.the box of wizard. there i want to make a relationship with table2. but we could see that table1 still show. yes right, it's reality making error and show message ""you can't modify the structure of table, because it is already in use by another person or process"and warning message ""Microsoft access couldn't launch the lookup wizard, or this wizard has been disabled...blabla...blaa"
on my laptop, ms access 2010 nothing happen the mattter and when i make DLOOKUP, parent table have been not seen.and make DLOOKUP Wizard is successfull.
why in my PC, when i make DLOOKUP wizard, parent table still show?what is this bug for MS access 2010?
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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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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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Oct 26, 2012
I am working on a complex database, as i have to call sub tables in the parent table. but i don't know how i can create it. My database format is as below
Village name, UC Name, District, village basic information, village disasters history, village school safety plan, village DMC members, Hazard Map of the village,
After the field of District i have to call sub tables against each field with its details. How I can create it. in Hazard Map field i have to attach the map img files.
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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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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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Oct 28, 2011
I have an employee and asset database. If an employee gets fired, I need remove them from the general employee records, but I want to save a record of that employee. Is there a way to delete an employee from one table and have it automatically added to another table?
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Sep 20, 2005
Can anyone help with this. I have a query called trigger, which has 5 fields as follows
CONTACTID..............INV...............MSP...... ........SMS..............TRIGGER
456.............................................11 ......................................MSP
457..........................8.................... .......................................INV
458.............................................3. .......................................MSP
459............................................... ...................6...................SMS
Only 1 field between INV, MSP and SMS in any record will be >0
What I need to do is that if the value in these 3 fields are > then populate TRIGGER with the correct name
Can anyone help
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Apr 24, 2006
Hi i am trying to create a query for reporting purposes that will run automatically on say a monthly or weekly basis. please help. I dont want it to run off a macro or button but for the report to be generated automatically and stored after a given time period.
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Oct 25, 2005
Hi,
I have a database in Access. I have a form that is accessed by several users on a network. There is one field called the Employee ID. Whenever this field is changed, I should receive an email that says that the field has changed. We have Lotus Notes installed on the network. Can someone help me out thru this? Any help whether this can be done or not is also appreciated.
Thanks in advance
Neelima.
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Sep 20, 2006
Well I have two tables, one is the workorder register and the other is the closed work orders. This is for maintenance. I have a form for creating and veiwing workorders. I need to link a command button to the form that will delete the record being viewed in the WO REG table and paste it in the Closed WO table. I think I need to use two append queries but have no idea what I am doing. Here is what I have so far.
INSERT INTO [CLOSED WO] ( WO, MMCN, TECH, NOMIN, FUALTS, TYPE, [SECTION], CLOSEDATE, OPENDATE )
SELECT [WO REG].[WO], [WO REG].[MMCN], [WO REG].[TECH], [WO REG].[NOMIN], [WO REG].[FUALTS], [WO REG].[TYPE], [WO REG].[SECTION], [WO REG].[CLOSEDATE], [WO REG].[OPENDATE]
FROM [CLOSED WO], [EQUIP REG] INNER JOIN [WO REG] ON [EQUIP REG].[MMCN]=[WO REG].[MMCN]
WHERE ((([WO REG].[WO])=[WHAT WO TO CLOSE?]));
Like I said I have no idea what I am doing, this is out of the SQL view for my "move to closed WO" query. the fields I need to move are WO, MMCN, TECH, NOMIN, FUALTS, TYPE, SECTION, CLOSEDATE, and OPENDATE.
Is this even remotly right? I know nothing of VBA an all these symbols mean nothing to me.
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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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Sep 19, 2006
Hi,
I am completely new to Access and I'm trying to make a Birthday auto email type thing.
I want the program to email people to say Happy Birthday on the day of their birthday but I haven't a clue where to start and the Microsoft website confuses even more.
I have used the database template Mailing List with the First Name Last Name Address Email Address & Date of birth.
Can someone help me please?
You can add me to Msn if you like...
super.kitty@hotmail.co.uk
Thanks,
Elaine
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Dec 23, 2004
I'm not sure if this is the proper forum for this post. I have a database in access in which i need to mimick a trigger like behavior. As far as I know access does not support triggers. When a user updates a record I need a LastModified date field to be updated with the current date automatically.
I've seen several examples of how to accomplish this using forms, however, the users of this database do not use forms. They are editing the records by hand by opening up the table and simply typing.
Any help you can provide is greatly appreciated.
Thanks!
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Apr 17, 2006
Hi
im going to make an update query to deduct the quantity purchased of a product from the stock amounts but i need it to run the query automatically everytime a new record is added to the table
any ideas how to do it?
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Feb 2, 2005
When the close button on the top right of the form is pressed I want the following code to be run:
Private Sub Form_Close()
Dim preview As Boolean
Dim checkForOldBooks
Dim count As Integer
preview = False
count = DCount("*", "tblOldItems")
If count > 0 Then
Call saveAndOutput_Reports("rOldBooks", "oldBooks", preview)
Call saveAndOutput_Reports("rBarCodeList", "BarcodesScanned", preview)
Else
Call saveAndOutput_Reports("rBarCodeList", "BarcodesScanned", preview)
End If
DoCmd.Close
End Sub
I put this code in the Form_Close trigger because I want it to execute everytime the form is closed. The problem I'm having is when I run the form and press the close button the code does not seem to execute. However if I put a breakpoint in the trigger, run the form and press the close button, the program does go into the trigger and the code executes as it should when I step through it.
To troubleshoot I also created a button and added the above code, when the form is run and the button is pressed the code executes as it should it just does'nt work in the close_form trigger.
Does anyone know why this may be happening.
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