Referencing Variable for Functions - sql

Every two weeks there will be a new table with new data coming in to me, I need to update that onto a master table. I want to automate this process.
I would like to declare a variable that a user can input the date the data is from, and based on that date update to the appropriate field on the master table. I have no clue how to make SQL functions use variables to locate tables with the syntax, not even sure if this can be done. Any help would be appreciated.
As I am inexperienced, I am making a VBA Macro and embedding the SQL code from the access query I made.
Sub UpdateFieldX()
Dim SQL As String
SQL = "UPDATE [15-Jun-16] " & _
"RIGHT JOIN MasterSPI " & _
"ON [15-Jun-16].[SR#] = MasterSPI.[SR#] " & _
"SET MasterSPI.[30-Jun-16] = [15-Jun-16].[SPI]; " _
DoCmd.RunSQL SQL
End Sub

I've done something similar to this and used an Update Query and Insert Query.
It sounds like you're trying to just update any existing records that may need updating and then adding new records into the table.
For an update, I'd try creating a query in SQL view and type something like:
UPDATE MasterSPI SET MasterSPI.SRnumber = [newtablename]![SRnumber] etc.
and do that for each field in your table.
For inserting you could do something like:
INSERT INTO MasterSPI SELECT * FROM newtablename
That may help you get started.

I know many of you are advanced users but I found an answer that fit my quick needs. As a notice and disclaimer for other people, it will be in no way secure, it is more for personal use such that I do not need to spend an hour doing append and updates to several master tables repetitively.
To do this, I made a global string variable called name, then I made another variable called strung that translated it into a readable string for referencing. I then made an SQL string that references that strung variable. This allows the user to submit an input for the global variable, which translates into a readable string for the RunSQL method.
Here's a snippet of the parts that were most relevant, I hope it helps whoever comes next with the same scenario.
**
Public name As String 'global variable declared so that the new field to be created can be used elsewhere
name = InputBox("Name of Month", "InputBox") 'variable that takes user input and it will be name for new fields to be added
Dim SQLa As String 'creates a string variable such that it will be read as an SQL line by the RunSQL method
strung = "[" & name & "]" 'sets strung as global varible name, which is user input on the specific table being used to update
'the following lines runs a query such that it updates the master table with new data and does the grouping by SR number
SQLa = "UPDATE " & strung & " " & _
"RIGHT JOIN MasterSPI " & _
"ON " & strung & "." & "[SR#] = MasterSPI.[SR#] " & _
"SET MasterSPI." & strung & " = " & strung & "." & "[SPI]; " _
DoCmd.RunSQL SQLa 'executes the SQL code in VBA **

Related

Access: dynamically query tables

I built an Access database to contain information regarding parts that we use to create schematics. There is one table that contain "basic" information, like "unique part ID" ("TUPID"), links to datasheets and so on - and the "Partition" further information is stored.
Furthermore there are several tables (this is "Partition") that contain information on the part itself: one table for resistors, one for connectors, one for power-ICs and so on. Each table has many fields different from other tables, but there are fields that exist on each table, eg. "Manufacturer", "Symbol", "Package" and "Height".
Now I have a split form ("10_Change_BaseInformation") that shows the "basic information", so when I select one row in the database-part of the form, the data is loaded into textboxes and can be edited. Additionally I want to see the information from the "Partition"-table in this form, so I wrote this:
Private Sub Form_Click()
Dim SelectedPartition As String: SelectedPartition = Forms![10_Change_BaseInformation]![Text25]
'Field "Text25" contains the TUPID
Dim SQLStatement As String
SQLStatement = "SELECT " & SelectedPartition & ".TUPID, " & SelectedPartition & ".[Mfg]" & vbCr & _
"FROM " & SelectedPartition & vbCr & _
"WHERE (((" & SelectedPartition & ".TUPID)=[Forms]![10_Change_BaseInformation]![TUPID]));"
DoCmd.RunSQL SQLStatement
' SQLStatement = "SELECT Resistor.TUPID, Resistor.[Hersteller] FROM ResistorWHERE (((Resistor.TUPID)=[Forms]![10_Change_BaseInformation]![TUPID]));"
End Sub
First of all, I get runtime-error "2342", but I can't make any sense of that; so: how do I have to modify my code, to get a valid result?
Second, how can I get the values from the query to the form?
Thanks in advance for your help!
I can't speak to the reason of your error, as we would need more information such as the types of your fields in your table.
I'm guessing that your Resistor.TUPID field is a string.
If so, you need to modify your code as below:
WHERE (((" & SelectedPartition & ".TUPID)='" & [Forms]![10_Change_BaseInformation]![TUPID] & "'));
If it is of Type number then
WHERE (((" & SelectedPartition & ".TUPID)=" & [Forms]![10_Change_BaseInformation]![TUPID] & "));
As to the form...
Generally speaking, you can design a form without a record source, but with controls that are named the same as your select query fields.
When designing each Control on the form, you have to explicitly specify the Control Source (i.e. The field names that are returned from your select query), otherwise they will be Unbound and never update automatically based on Record Source.
Then assign your SQL query string to the Recordsource of the form.
MyForm.Recordsource = MySQLString
Then run the Requery method of the form.
MyForm.Requery

SQL Syntax error running action Query through VBA

I am trying to build this query through VBA instead of building it in Access and running a docmd.openquery. That seemed to me like the easier route, but I wanted to work on my SQL. Obviously that didn't work as intended if I am here lol.
So, I am trying to take the Date values of 14 text boxes on our JobTicket form and insert them into another table, Tbl_Schedule. This table is not a part of the Query that is the record source for the JobTicket form. I am worried that attempting to add this table in will overload the Query, as it is already very full. When I try to quickly navigate to the last field in that Query the text writes on top of itself, and then Access goes not responding while it clears up the text and loads the last couple fields. Adding another 56 fields to that seems like a recipe for disaster. I will post the SQL I have written below.
DoCmd.RunSQL "INSERT INTO Tbl_Schedule (Date_Scheduled1, Date_Scheduled2, Date_Scheduled3, Date_Scheduled4, Date_Scheduled5, Date_Scheduled6, Date_Scheduled7, " & _
"(Date_Scheduled8, Date_Scheduled9, Date_Scheduled10, Date_Scheduled11, Date_Scheduled12, Date_Scheduled13, Date_Scheduled14)" & _
"VALUES (#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled1_JobTicket] & "#,#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled2_JobTicket] & "#, " & _
"(#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled3_JobTicket] & "#,#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled4_JobTicket] & "#, " & _
"(#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled5_JobTicket] & "#,#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled6_JobTicket] & "#, " & _
"(#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled7_JobTicket] & "#,#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled8_JobTicket] & "#, " & _
"(#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled9_JobTicket] & "#,#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled10_JobTicket] & "#, " & _
"(#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled11_JobTicket] & "#,#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled12_JobTicket] & "#, " & _
"(#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled13_JobTicket] & "#,#" & [Forms]![Frm_JobTicket]![Txt_DateScheduled14_JobTicket] & "#)"
Table being inserted into: Tbl_Schedule
Fields being inserted into: Date_Scheduled1 -to- Date_Scheduled14
Getting data from text boxes: Txt_DateScheduled1_JobTicket -to- Txt_DateScheduled14_JobTicket on Frm_JobTicket
Any other questions that would assist you in assisting me please feel free to ask! Thanks in advance!
Dynamic SQL has its uses, but this is not one of them.
Using DAO methods makes your code so much simpler and easier to read and debug.
Dim db As DAO.Database
Dim rs As DAO.Recordset
Dim frm As Access.Form
' for readability
Set frm = Forms!Frm_JobTicket
' open table for adding record(s)
Set db = CurrentDb
Set rs = db.OpenRecordset("Tbl_Schedule", dbOpenDynaset, dbAppendOnly)
rs.AddNew
rs!Date_Scheduled1 = frm!Txt_DateScheduled1_JobTicket
rs!Date_Scheduled2 = frm!Txt_DateScheduled2_JobTicket
' etc.
rs.Update
rs.Close
With enumerated field names like these, you can also use a loop:
Dim i As Long
rs.AddNew
For i = 1 To 14
rs("Date_Scheduled" & i) = frm("Txt_DateScheduled" & i & "_JobTicket")
Next i
rs.Update
This is a good opportunity to consider normalizing your data so that part of your problem is removed entirely. Instead of having DateScheduled1_JobTicket, DateScheduled2_JobTicket etc., it might be better to have another table which fills vertically instead of horizontally, perhaps with fields like ID, Item, JobTicketNumber, ScheduledDate.
Then, fill this table with a row for each item/sku/product, and date. You'll have 14 rows for scheduled tickets for each item/sku/product instead of 14 columns, and this will also solve your future problem of adding 56 fields. The benefit is that you can present the job ticket schedule rows by using continuous forms (in a list). Even better, you can put this continuous form with dates as a subform on your item/sku/product main form, which will then show as a neat list of scheduled tickets that will automatically change as you scroll through item/sku/products.
If you don't use continuous forms, you can still use an unbound approach as you're using now. One benefit is that it will be much easier when you need to add future JobTicket numbers, since you can just add more rows instead of adding fields and having to do additional design work.
If you want to view data in the flattened way that you built your table, you can use a Crosstab query to present it as you have in your table, but the underlying data will be much better stored in a normalized format.
Note that you don't need to concatenate a string as you did above; just leave the Forms!Form!Control reference expression directly in the query and you have a nice parameterized query that will execute just fine, so long as there are dates in those controls (text box, drop down etc).
ex.
Insert Into (MyDateField) Values (Forms!MyForm!MyDateControl);
No dynamic SQL needed.

Why does MS Access prompt to enter parameter in update query which already has values?

I am making a database where the user can change the name of a company in a table. However , whenever I use the update query, it asks for a parameter which is already supplied. The old company name is in the variable new_comp and then the new one is in the Me.comp1_box.Value.
Funny enough the query runs excellently whenever I hit ok and enter nothing inside the "Enter Parameter" setting
Dim record_changer As String
record_changer = "UPDATE " & "[" & new_comp & "]" & " SET " & "[" & new_comp & "]" & ".Company_Name =" & """" & Me.comp1_box.Value & """" & ";"
MsgBox (record_changer)
DoCmd.RunSQL (record_changer)
This is the final value of the record_changer.
UPDATE [EREDEON TECHNOLOGIES] SET [EREDEON TECHNOLOGIES].Company_Name="EREDEON TECH";
This is how it is when the code runs.
This is the query that it is supposed to run
It gives this prompt meaning it's supposed to run perfectly, meaning there is nothing wrong with the Query
This what pops up
Can anyone please help me out?
I am genuinely lost.The name of the Old Company name is EREDEON TECHNOLOGIES and the new name is EREDEON TECH
But funny enough when I just hit Okay without entering a value into the parameter dialogue box, it actually makes the changes.-_- weird
This happens, then I press "OK"
THEN THIS HAPPENS, Then I hit Okay
This is the table before.
It updates the table the new value which is EREDEON TECH. When I just hit OK, without typing anything into Parameter Dialogue.
Try changing your SQL string to the following. Note the single quotes change around Me.comp1_box.Value.
record_changer = "UPDATE " & "[" & new_comp & "]" & " SET " & "[" & new_comp & "]" & ".Company_Name ='" & Me.comp1_box.Value & "';"
Misused quote marks is the most common cause for the Parameter Value prompt. If that doesn't work, use this article to perform step-by-step trouble shooting on all of the other usual causes, Why does Access want me to enter a parameter value?
You can also reference the following articles:
MS Docs, Quotation marks in string expressions
Bytes, (') and (") - Where and When to use them
Fundamentally, the issue is due to the use of double quotes in VBA which works in Access SQL by itself but not via VBA using DoCmd.RunSQL. You could have used single quotes to enclose company name value.
However, avoid concatenating VBA literals to SQL queries with quotes in the first place. Instead, use the industry best practice of parameterization which is available in MS Access using QueryDefs in VBA and PARAMETERS clause in SQL:
Dim record_changer As String
Dim qdef As QueryDef
sql = "PARAMETERS new_name_param TEXT; " _
& "UPDATE [" & new_comp & "] " _
& "SET Company_Name = new_name_param;"
' SET UP QUERYDEF
Set qdef = CurrentDb.CreateQueryDef("", sql)
' BIND PARAMS
qdef!new_name_param = Me.comp1_box.Value
' RUN ACTION
qdef.Execute
' RELEASE RESOURCE
Set qdef = Nothing
Nonetheless, the need to concatenate table name, new_comp, in query is questionable database design. Proper names (EREDEON TECHNOLOGIES, GAME DISCOUNT STORE, SHOPRITE, etc.) should never be names of tables. Avoid maintaining a separate table for every company. Instead, normalize data for a single table of all companies, then run UPDATE with WHERE adding a second parameter.
' PREPARED STATEMENT, NO VARIABLE CONCATENATION
sql = "PARAMETERS new_name_param TEXT, old_name_param TEXT; " _
& " UPDATE Companies " _
& " SET Company_Name = new_name_param" _
& " WHERE Company_Name = old_name_param;"
Set qdef = CurrentDb.CreateQueryDef("", sql)
qdef!new_name_param = Me.comp1_box.Value
qdef!old_name_param = new_comp
qdef.Execute
In fact, since above SQL is now separated from VBA, save the query without VBA punctuation (&, ", or _) as a separate object and call it in QueryDefs by name:
Set qdef = CurrentDb.QueryDefs("mySavedQuery")
qdef!new_name_param = Me.comp1_box.Value
qdef!old_name_param = new_comp
qdef.Execute
Even better, if your parameters derive from controls on open forms, include them directly in query for a single line VBA call. Below runs the normalized version of single Companies table:
SQL (save as query object, adjust names to actuals)
UPDATE Companies
SET Company_Name = Forms!myForm!comp1_box
WHERE Company_Name = Forms!myForm!new_comp
VBA (no need to close action queries)
DoCmd.OpenQuery "mySavedQuery"

Error 2465 in MS Access when running a VBA code

Read through a few of the previously asked posts about this error but still cannot understand it.
The error text is "Run-time error '2465' CASREP reporting tool can't find the field '|1' referred to in your expression
I have a form to assign parts to certain supply reports. We have a form where users can manually hyperlink the parts to the request if they fall in the cracks. There is a check box feature, followed by the use of an "Assign" button to achieve this.
Every time a box is checked and a user selects "Assign" the error pops up. The string of code that pops up with the bug is as follows:
strSQL_del = "DELETE FROM [tbl_Temp_Assign] " & _
"WHERE [jcn_cd]= '" & Forms![Parts: Assign Unit].[tblTemp_Assign subform1].Form.[jcn.cd] & "'
AND [CASREP #] = '" & strCASREP & "' AND [doc_num_cd] = '" & Forms![Parts: Assign Unit].[tblTemp_Assign subform1].Form.[doc_num_cd] & "'
AND [last_updated_dte] = #" & Forms![Parts: Assign Unit].[tblTemp_Assign subform1].Form.[last_updated_dte] & "#
AND [PMOMsgDte] = #" & Forms![Parts: Assign Unit].[tblTemp_Assign Unit].Form.[PMOMsgDte] & "#" 'Intentionally left off AssignDte
Any help is greatly appreciated. I'm lost on what is wrong.
The error is related to the SQL string concatenation, but that string is quite long, it's hard to say if you have a space between ' and the first AND condition. Also, after the first continuation character _, is all that a single line?
Anyway, I would strongly advise to setup a delete query where you pass the form values as parameters and in VBA you just execute the query. It will be easier to update later on if needed.
The query:
PARAMETERS [prmTextField] Text (50), [prmDateField] DateTime, [prmNumberField] Long;
DELETE *
FROM T
WHERE T.TextField = [prmTextField]
AND T.DateField = [prmDateField]
AND T.NumberField = [prmNumberField];
Then, in VBA just execute the query.
With CurrentDb().QueryDefs("QueryName")
.Parameters("[prmTextField]").Value = '[Value from Form (text)]
.Parameters("[prmDateField]").Value = '[Value from Form (date)]
.Parameters("[prmNumberField]").Value = '[Value from Form (number)]
.Execute dbFailOnError
End With
By the way, do you really need to pass all those parameters to delete a record? Usually, just the record id is needed.

Microsoft Access 2010 - Dynamic query

I have an access web database that several users will need to log in to. The database contains a table of products.
The challenge is, every user needs to only see a subset of these products and never see the whole list.
At the moment i have some code to modify an existing query based on the logged in user's details. As they log in, some tempvars are created and these are used to modify the query criteria.
This works well when the first user logs in, but the moment the next user logs in, the query is modified again and the product list refreshes and now his products are shown and not the first users! Im thinking i need to dynamically create a permanent query for each user on log in?
Or is a better way to accomplish what im trying ? im quite new to access and struggling. Can anyone assist please?
Here is my code so far:
Button on login form has the following code that collects the user's details
Private Sub cmdLoginMine_Click()
Dim ID as long, strEmpName as string,strZondsc as string,strgrpdsc as string
ID = DLookup("ID", "Employees", "Login='" & Me.txtUser.Value & "'")
strEmpName = DLookup("FullName", "Employees", "Login='" & Me.txtUser.Value & "'")
strgrpdsc = DLookup("MyGrpdscs", "Employees", "Login='" & Me.txtUser.Value & "'")
strzondsc = DLookup("MyZondscs", "Employees", "Login='" & Me.txtUser.Value & "'")
TempVars.Add "tmpEmployeeID", ID
TempVars.Add "tmpEmployeeName", txtUser.Value
I then call a function that modifies the existing query, populating it with this users details for the criteria
qryEdit strgrpdsc, strzondsc, ID
Sub qryEdit(strgrpdsc As String, strzondsc As String, ID As Long)
Dim qdf As DAO.QueryDef
Dim qdfOLD As String
Set qdf = CurrentDb.QueryDefs("InventoryQryforDS")
With qdf
.SQL = "SELECT Products.ProductCode, Products.ProductName, Products.GRPDSC, Categories.Category, Inventory.Available " & _
"FROM (Categories INNER JOIN Products ON Categories.ID = Products.CategoryID) INNER JOIN Inventory ON Products.ID = Inventory.ProductID " & _
"WHERE Products.GRPDSC in (" & strgrpdsc & ") and Categories.Category in (" & strzondsc & ") and products.ownersid =" & ID & _
" ORDER BY Products.ProductCode"
End With
Set qdf = Nothing
End Sub
The results of the query are shown on a form, which is what is currently requerying and showing the wrong data.
Thanks
EDIT - THe data is shown on a form, linked to one of the new style navigation buttons as shown.The recordsource property of the form is the query that's populated as described above.
I have a few suggestions/corrections to your approach to solving this issue.
When using DLookup, make sure they are enclosed within Nz() function, if the value you are looking for is not found you might be facing troubles of assigning a Null value to a Data Type that cannot handle Null. Anything other than Variant type will suffer.
You seem to do not one but four DLookup's on the table. This could be very expensive. This could be minimized by using a simple RecordSet Object.
I would not use TempVars much as they could be tricky to understand and implement.
Why are you editing the Query? This could again be a bit expensive in terms of memory. How are you showing the list of Products? In DataSheet or ComboBox or LsitBox? You could yet again change the RecordSource or RowSource of the Objects rather than editing the Query itself.
Finally, your users should all have a separate copy of the Front End file. Not one copy used by 20-30 people. If the files is restricted to be used by one person, then the code should work regardless of being modified. As the user will have access to the right data at all times.