Queries :: Detect When Query Fails To Find A Record
Oct 29, 2013
I have ASSET_TYPE, MANUFACTURER and MODEL tables.
I have a Table ASSET_COMBO that links to the above tables.
I have a form to create amend an ASSETS table. The form uses combo fields to filter the options available to the user. I.E the User Picks Manufacturer then selects from list of Asset Types provided by that Manufacturer, then selects from list of Models.
I want to create a form to allow create and amend records on the ASSET_COMBO Table.
The problem I have is that I want to ensure that there are no duplicates on ASSET_COMBO Table. I know that I can Select Multiple keys from the table with no duplicates allowed. But from what I have read this can cause problems. Is there a simple way that I can detect that a query on the ASSET_COMBO Table has returned a valid record or has not found a record.
Before the record is written for the first time OR edited/updated to the table, I want to search tblClass and determine if the new/updated info will create a duplicate record.
In this specific case, a duplicate record will be defiened by a record where the only fields being considered would be StudentID, Trimester and SubcatID. The fields WorkGrade and SkillGrade should not be considered.
The code I came up with was the following and it was put in the BeforeUpdate:
Dim conn As ADODB.Connection 'Connection Object Dim rst As ADODB.Recordset 'Recordset Object Dim strSQL As String 'SQL statement for open statement
' Create object variables Set conn = CurrentProject.Connection Set rst = New ADODB.Recordset
' Create sql to search for records in tblClass that match 'studentID, Trimester, and Subcatagory in the form record being added strSQL = "SELECT * " & _ "FROM tblClass" & _ "WHERE fldStudentID = " & StudentID & " AND " & _ "fldTrimester = '" & Trimester & "' AND " & _ "fldSubcatID = " & SubCatID & ";"
' Open recordset rst.Open strSQL, conn, adOpenKeyset, adLockOptimistic
If rst.RecordCount >= 1 Then ' record already exists in tblClass msgbox "Record already exists!",, "Duplicate Record Error" Me.cboSubcatID.SetFocus Cancel = True End If
' Close and disassociate object variables rst.Close conn.Close Set conn = Nothing Set rst = Nothing
This code worked great except when I went to edit an existing record. When I went to change a grade (WorkGrade or SkillGrade) on an existing record, it told me that I could not enter the record because the record already existed (ie, the record I had open and was editing). I am not sure if it is my code that I need to edit or if it is the placement of the code I need to change.
I've looked all over this forum and others and google, and am amazed that I've found nothing that addresses this issue.
I want to execute some code after a record has been deleted. If I uncheck the "Tools / Options / Confirm Record changes" option (it's extremely disruptive) then the "Before/After Del Confirm" events don't occur. The "On Delete" event occurs before the record is deleted and therefore doesn't help me.
Are the "Before/After Del Confirm" events the only events that occur after record deletion? If so, is there any way to disable the confirmation dialog and still get the events so I can handle it with my code and not disrupt the user every single time a record is deleted?
I have a form with 55 values entered. On closing the form, I need it to decide if this is a new record. If it is a new record, it loads all 55 values into an array. If all values are above 20,000, it goes ahead and closes the form. If any are below 20,000, it writes the record to another table and brings up that form to add add a comment.
Every thing does as it should except determining if it is a new record. What property will trigger it properly? All the properties I have tried either triggers it on all the records (even if it is an old record) or it does not trigger it and closes without prompting the code.
I'm very new to Access, Macros, and VBA. Basically I have a form in ContinuousForm format that has a delete button next to each record. It's been working fine for the past few hours but for some reason Access can't delete the corresponding record(s) (DeleteRecord) now. The button is run by a macro that's made by a wizard.
Also, is there an appropriate way to show code (if that is the term used) for Macros?
I have a main form "frmDriverNoticeRecord" with 2 subforms, "frmSubDriverNotice" and "frmSubVehicleRecord"..The main form uses "IncidentID" as the PK. Each form stores data in its own table. The tables are related via IncidentID and there is a 1-many relationship between tblIncident (main) and tblDN (sub) and tblVehicle (sub).
I have a form "frmIncidentLog" displaying records in a table view with a few fields for quick reference and to allow selection of a single record for detailed viewing. I created a command button with the intent to open the "frmDriverNoticeRecord" at the current record. The main form and child link fields appear to be linked correctly; i.e. IncidentID on all three. If I open the form manually it opens and I can use it and search and filter as I want. If I try to open it via the command button It opens a small window asking for the IncidenID, when I enter theIncidentID number, it opens the form to the first record every time.Here is the code:
Private Sub comOpenDR_Click()
Dim frmName As String Dim recID As String frmName = "frmDriverNoticeRecord" recID = "[IncidentID]=" & Me![IncidentID] DoCmd.OpenForm frmName, , , recID End Sub
I tried running the the DoCmd.OpenForm command directly from the button using the where condition (in various manners) with the same results.
I currently have a form to manage inventory. On the left side of the form, I have a list box that shows all of the items in the database and finds the record on the form based on the selection.
I would like to have toggle boxes or something underneath the list box that when clicked will sort the box by vendor and item and another that when clicked will sort the list by part number and then select the record on the form based on the selection at that time.
I have no idea how to accomplish this...can anyone help?
I am trying to use a query to search 2 many to many relationships but i keep getting duplicate results because each record is slightly different.
I have a table with cameras, another users and another formats. I have a table linking cameras to users and another linking cameras to formats so it looks somthing like this:
When i add all the tables into a query i get loads of results as expected because i get a result for every possible combination.
What i want is when i search for all cameras that are suitable for a user who is a beginner is to get just a list of unique cameras. When i do that search at the moment i get a duplicate record for each different format the camera can do.
If I have four date Fields in a query, Astart, Bstart, Cstart, and Dstart and want to have a calculated field to find the latest date for each record how would I do that? I have tried things like:
I am importing a spreadsheet on a daily basis that has the same columns in every time but depending on the company I am importing it for different columns will be blank and not needed each time.
What is the best way of detecting and removing blank columns.
I'm fairly new to SQL and have a problem finding the latest record.
Lets say I have a development project that has many disbursal payments to be sent. I want to find the latest disbursal record created for that one project instead of having all of the disbursal records show on the query.
I'm trying to work out how to do this in a query but haven't got a clue where to start.
Please, if anyone can help I'd be very grateful!:D
I don't know how to bypass the problem. I have two tables : (1) Dett_Lav , (2) MaterialiConformita.
They are thus linked: (1) IDDett_Lav <---one - to- many ---> (2) Dett_LavID I'd like to preserve the referential integrity.
In vba I wrote down this codethat does work if I delete the referential interity, otherwise it fails due to (foreign) key violation. I do insert the absolutely necessary Dett_LavID with the append query, so I'm not sure where lays the problem and how to bypass it.
Before I generate a particular report, the user must input a start and end date. If the user mouses to the generate report button, the query fails to grab the second date that was input. If the user tabs off of it, then it works just fine.
I think I could solve it by requerying the form before I generate the report, but that feels like a bulky work around. Is there a better way?
I have a report that is fed by a parameter query. When a command button (Command23) is clicked a parameter box opens and the user enters a subsystem number. A report for that subsystem then opens.
I want to open the report with VBA and show a message if the user has failed to enter a subsystem number in the parameter box and just clicked OK.
The problem is I don't know how to refer to the parameter box and detect if it has been left empty before clicking OK. I first tried to use IsNull in an If statement with Command23.Value, but now realize it is the value in the parameter box I am after, not the "value" of Command23.
How can I change my code to detect if the parameter box has not been filled out?
Private Sub Command23_Click() If IsNull(Command23.Value) Then MsgBox "You did not enter a Subsystem", vbOKOnly, "No Criteria Entered" Else DoCmd.OpenReport "rptTESTInfoBySubsystem", acViewReport End If End Sub
I have a table 45 fields. There is a field ID. I would like to get the records where fields contains "No". I would not like to create 45 queries for each field check. how can i generate a table which shows ID, Field Name that contains value "No".
I am attempting to build a small database for my firm to keep a track of equipment. The equipment can be in one of three places. In the warehouse, out on a job or at the repairers. I want to create a query that will let me know where a piece of equipment is at any one time. I'm sure my tables are set up correctly. I have use a union query to work out when equipment is on a job or in repairs but I need one to show me where all the equipment currently is.
i have created a parameter query which will find a students best and worst time for each exercise they have done. so you enter the student ID when you run the query and it works fine but i have a problem i need to query to find two students in particular and then i have to create a report from this query on the two students identified and this is where i come up stuck. i have tried typing in both student id's into the criteria but this doesnt work no matter if i put and in it or not and im not sure how to get the job done.
I am after getting an access 2003 database to look after and it contains SQL pass through query's. The database is a front end to a MS SQL server database with a connection string that is contained in a module.
I believe the SQL pass through queries are connecting to the same database as the rest of the application and somehow is using the connection string in the module. However I cannot find how that is configured on the SQL pass through queries.
Most documentation on the net seems to point at using ODBC to connect slq pass through queries to outside databases but I don't think this is the case. There are not Odbc sources set up for the database I am look at.
I have a find duplicates query with the following SQL:
Code: SELECT tblData.Vendor, tblData.[Loccurramount EUE], tblData.Last4, tblData.ID, tblData.Line, tblData.CoCd, tblData.[Document record number], tblData.PurchDoc, tblData.Reference, tblData.Curr, tblData.[Entry dte], tblData.Status, tblData.Version, tblData.Outcome FROM tblData WHERE (((tblData.Vendor) In (SELECT [Vendor] FROM [tblData] As Tmp GROUP BY [Vendor],[Loccurramount EUE],[Last4] HAVING Count(*)>1 And [Loccurramount EUE] = [tblData].[Loccurramount EUE] And [Last4] = [tblData].[Last4]))) ORDER BY tblData.Vendor, tblData.[Loccurramount EUE], tblData.Last4;
This works fine however I want to add another clause to the WHERE and I'm not sure how. At the moment the query highlights duplicates where the Vendor, Loccurramount EUE and Last4 match. I want to further restrict it so that it only finds duplicates where the Vendor, Loccurramount EUE and Last4 match BUT the number shown in version Does Not Match
So if two records have the same details for Vendor, Loccurramount EUE and Last4 and also have the same Version number then they don't show in the result.
I have three machines. They all have random variations, but a machine could also have a static deviation. If the last 4 values are above 0, the deviation is considered static and should be corrected. In this example 111 has a static deviation
Nowadays the operators look at the graphs and when they observe the static deviation they will adjust it.
Question is: Is it possible to use a query to extract 111? In that case I can give operator a warning in stead of him looking at the graph.
I used the wizard to create a find duplicates query. I know for a fact that 15 records are duplicates. I'm getting over 300 records. When I dumped the data into Excel and did a pivot table to count the number of records by account number only 15 had a total count of 2. All others only had 1. Why are the ones with no duplicates showing? I just want to see the 15.
