I have the following SQL query which I am loading in to a DataSet:
SELECT i1.* , i2.* From tblMMLettersImportTable i1 Join tblMMLettersImportTable i2 on i1.SectionID + 1 = i2.SectionID Where i2.startpage - i1.endpage <> 1
Idea is to check that the index for various sections of a document lead one page on to the other with no gaps. I.e section 2 ends on page 5 and section 3 starts on page 6.
I'm happy that the SQL works, however by joining on itself the field "SectionID" is duplicated. In SQL easy enough, just use i1. or i2. to reference the correct one.
The issue comes when I load this in to a VB.net Dataset. I need to raise an error message with something like:
MessageBox.Show("There is a page gap between sections " & row.item("i1.sectionID") & " and " & row.item("i2.sectionID")
I get the error message Column 'i1.intline' does not belong to table Table. Makes sense as that is not its name in the dataset. I've considered using the column number to reference the item to pull out, however the SQL Table tblMMLettersImportTable is deleted, created and populated dynamically depending on the type of Letter/document being produced so I cannot always guarantee that the columns will always numbered the same. This is also why i1.* and i2.* is used instead of listing each column.
Is there a way that I can reference 2 items in a DataSet that have the same item name with VB.Net?
Related
I'm using Google sheets, and I want to get the data from one sheet to another where I want only the columns with count > 1.
Let's say we have 3 columns A, B, and C. I tried the following (the first sheet name is "Form Responses 1"):
I thought about using a query in the second sheet as: =query('Form Responses 1'!A1:Z, "Select A having count (A) >1 union select B having count (B) >1 union select C having count (C) > 1"). But I got a parse error where it seems that union and having are not supported in google sheets query.
How can I achieve this (whether it's using query or any other Google sheets function that can work)?
More details:
The first sheet contains info about exercises conducted during a lecture and it gets its data from a Google Form (so the responses are fed in this sheet). Here is a screenshot of it:
Please note that the form is divided into sections. When the user selects the course, the attendance, the participation, and adds a comment, then they go to the next section, the next section will be based on the selected course, the newly opened section will have the exercise name and rating questions (the exercise name is a dropdown list with items that are prefilled and specific to the selected course). That's why, you can see that "exercise name" and "rate the exercise" columns are repeated because we have 2 sections in this form.
The second sheet should contain the data of a selected course only (either mobile dev or web dev) which can be achieved easily through a query with a where clause. But, in addition to that, it shouldn't contain the empty columns of "exercise name" and "rate the exercise" as they correspond to another section. So, it should have only one exercise name column and one rating column that correspond to the selected course. Here is a screenshot if we only use a query with where clause without removing the extra name and rating columns:
Here is a screenshot with the desired result:
Thanks.
why not use just:
=QUERY('Form Responses 1'!A1:Z, "select A,B,C,D,E,F,G where F is not null", 1)
Use "OR" condition
Eg:-
QUERY(Data!A:R,"select A, N, P where N>0 or P>0")
where A column has country and N, P columns have population values
I have a combo-box in an Access 2010 form that I want to show the concatenation of three fields in three separate columns as a result. Currently, I only get the first column to show upon selection even though all three show in the dropdown. The previous questions I have looked at seem to deal with platforms I'm not using.
In a qry, I have the following simple SQL statement that combines all three into a Desc column.
SELECT tblReLetArea.CWHContractNo, tblReLetArea.ReLetAreaLot, tblReLetArea.ReLetAreaName, tblReLetArea.[CWHContractNo] & ": " & [ReLetAreaLot] & " - " & [ReLetAreaName] AS [Desc]
FROM tblReLetArea;
I have attempted variations but nothing changes and I don't get any error messages.
You need to set two things:
The amount of columns in the combobox (combobox.ColumnCount) must be set to 4
The column widths of the combobox (combobox.ColumnWidths) must be set to 0;0;0 to hide the first 3 columns
Note that you could indeed remove the first 3 columns from your query altogether, or reorder the columns. That would influence the availability of the columns in VBA.
Basically I am using MS Access 2013 to import all active work items that are assigned to a specific group from an API and select the data into 2 new tables (Requests & Request_Tasks).
I then have a form sourced from a query to select specific fields from the 2 tables.
Until yesterday it was working with no problems and nothing has changed.
All of the data appears in the 2 tables so the import from the API works fine.
When it comes to the query selecting the data from the 2 tables (Which are already populated with the correct data) the query returns only data from Requests table with blank fields instead of data from Request_Tasks.
The strange part is that out of 28 active work items it returns 24 correctly and the last 4 are having the problem.
Every new task added to the group has the problem also.
Query is below.
SELECT
Request_Tasks.RQTASK_Number,
Request_Tasks.Request_Number,
Requests.Task, Requests.Entity,
Request_Tasks.Description,
Request_Tasks.Request_Status,
Requests.Requested_for_date,
Request_Tasks.Work_On_Date,
Request_Tasks.Estimated_Time,
Request_Tasks.Actual_Time_Analysis,
Request_Tasks.Offers_Built,
Request_Tasks.Number_of_links_Opened,
Request_Tasks.Number_of_Links_Extended,
Request_Tasks.Number_Of_links_closed,
Request_Tasks.Build_Allocated_to,
Request_Tasks.Buld_Review_Allocated_to,
Request_Tasks.Keying_Allocated_to,
Request_Tasks.Keying_Approval_allocated_to,
Request_Tasks.Actual_Build_Time,
Request_Tasks.Actual_Stakeholder_Support,
Request_Tasks.Task_Completed_Date
FROM Request_Tasks
RIGHT JOIN Requests
ON Request_Tasks.Request_Number = Requests.Request_Number
WHERE (((Request_Tasks.Task_Completed_Date)>=Date()
Or (Request_Tasks.Task_Completed_Date) Is Null)
AND ((Requests.Task)<>"7"
And (Requests.Task)<>"8" And (Requests.Task)<>"9"))
OR (((Request_Tasks.Task_Completed_Date)>=Date()
Or (Request_Tasks.Task_Completed_Date) Is Null)
AND ((Requests.Task)<>"7"
And (Requests.Task)<>"8"
And (Requests.Task)<>"9"))
ORDER BY Request_Tasks.Work_On_Date Is Null DESC , Request_Tasks.Work_On_Date, Requests.Entity Is Null DESC , Requests.Task;
Any help would be great.
Thanks.
The query is using RIGHT JOIN, which means rows from Requests table is always reported even if there is no corresponding entry in Request_tasks table.
A full example is here http://www.w3schools.com/Sql/sql_join_right.asp
In your case, most likely somechange might have happened during data load/API and Request_tasks table is not being populated. That is the reason you see blank data for fields from that table.
Solution
Manually check data for 4 faulty records in Request_tasks table.
Ensure keys in both table request_number are matching including data type and any leading space/non printable characters (if they are string type of data) for faulty records.
Query seems fine, its more of issue with data based on problem statement.
I've had the same problem as described here: Access 2007 - Left Join to a query returns #Error instead of Null
for which, the solution seems to be; write a better calculated field column so that the error doesn't occur later down the line - described here: Access SQL - given two dates, return the dates of the previous period
However, my calculated column is really simple, only converting a text field to a number field (e.g. "003" -> "3");
RevisionNumber = CDbl([RevisionText])
Further to this, The process works in a left join further up the chain?!
I changed the calculated field to a constant as detailed in the comments on the answer. But this gave me a new error
"Each GROUP BY expression must contain at least one column that is not an outer reference"
Here's the comment:
In my test example, if I switched the calculated field for a constant (e.g. 3 or "Test") then this value did indeed appear for every chain, whether they appeared in the right hand side of the join or not. For a calculated field it returned an error. Only when it was a direct reference to a single field did it work properly. If I do solve it I'll post the workaround here. – Wilskt
So it must be in my SQL code??
SELECT QryDATATRIncompleteRequired.*,_
QryDATATRLatestCompleted.LevelTrained, CDbl([RevisionTrained]) AS [Revision Trained], _
QryDATATRLatestCompleted.TrainerSignOff, QryDATATRLatestCompleted.DateAwarded, _
QryDATATRLatestCompleted.ValidTo_
FROM QryDATATRIncompleteRequired LEFT JOIN QryDATATRLatestCompleted ON _
(QryDATATRIncompleteRequired.EmployeeID = QryDATATRLatestCompleted.EmployeeID) _
AND (QryDATATRIncompleteRequired.SubjectTitle = QryDATATRLatestCompleted.Subject);
I have a contact form and one of the fields in a the form is a Contact_Type_ID. This field is a number field which also corresponds to a text field in another table (e.g. 1 = expatriate).
When I cycle through the contacts, their Contact_Type_ID is 1, 2, 3... instead of Non-profit, CEO, Vice-president, etc. This is a problem because one has no idea what number 3 means.
I would like to a combobox that only displays the corresponding text.
I can't get the two columns and 0;1 format to work. My hunch is that it's because I'm drawing information from two different tables. I can generate the correct list, but then the main entry doesn't change as I cycle through the contacts to reflect the current contact's [Contact_Type_ID].
I can't edit any of the current tables because I am supposed to apply this application to a much larger scale database.
I also tried setting the SQL for the row source:
'Populate the connection combo box '
Dim typeSQL As String
typeSQL = "SELECT DISTINCT Contacts.[ContactTypeID], Contact_Types.[ContactType] " & _
"FROM Contacts, Contact_Types " & _
"ORDER BY Contact_Types.[ContactType];"
Me.cbo_ContactType.RowSource = typeSQL
However, I then have the same problem: the combobox won't update as I cycle through the contacts. I don't understand the difference between the rowsource and the controlsource. I feel that this distinction might be key here.
Assuming I understand correctly:
In the combo box properties, go to the Data tab.
Set the Control Source to Contact_Type_ID.
This means that when you go through the records, the combo box will correspond to the Contact_Type_ID field from your data.
Set the Row Source to "SELECT Contacts.[ContactTypeID], Contact_Types.[ContactType] FROM Contacts, Contact_Types ORDER BY Contact_Types.[ContactType];"
The Row Source indicates the data that the combo box has access to, which will help it determine how to display the control source value.
Set the Bound Column to 1
Set Limit to List to Yes
Now in the Format tab. Change Column Count to 2.
Next set the column widths to the 0;1 you mentioned in your question.
Now try looking at form view, and it should behave as you expected.
If it does not work, create a new control with these instructions.
As I understand your question, you have a form with contacts based on a table Contacts and that table contains a field called either Contact_Type_ID or ContactTypeID. You wish to display the description of the contact type from a table Contact_Types.
You do not need to join tables for your combo, it should be very simple. The key, as you suspected, is the Control source, which is the property that relates one table to another.
Control source : ContactTypeID '' or Contact_Type_ID, choose from the list
Row source : SELECT ContactTypeID, ContactType FROM Contact_Types ORDER BY ContactType
Bound column : 1
Column count : 2
Column widths : 0,2
As an aside, you can join tables in a combo and still set the first column to 0 and it will still work, it is all in the correct set up.