how to for each loop on data table within another datatable - sql-server

Question

I have a web poll application that reads and processes orders from sql server back end and inserts into windss(jda).
the flow
1) I read all the orders from the sql server tables that is not processed
2) then I need to divide the orders into two sets
- set 1 orders with bundle kit( 1 order with several suborders)
- set 2 is just orders with no bundle kit
3) then after each order is processed I need to update the isprocessed sql field to 1
1) code for reading all orders
Frmmain.vb
dt = WebDatabase.GetAllOrdersFromDatabase()**'this method is below**
For Each drow In dt.Rows
If CDbl(WinDSSStoreNumber) = 123 Or CDbl(WinDSSStoreNumber) = 124 Then
' Store 123 and 124 = customer service - only orders with qualifying source codes
my question is:
the above for each checks if the store is 123 or 124 but now I want to implement another for each loop that reads all the InvoiceHeader_Id that the second field in the datatable and then check if it has a bundle kit or not if it does then process it and update the isprocessed field second last in the datatable else process the orders without any bundle kit and update isprocessed for those as well. please any help is generously appreciated, please ask me any questions in the below comment before marking my question down.
WebData.vb
Public Function GetAllOrdersFromDatabase() As DataTable
DrivePath = "C:\Users\somjething\Documents\files\somefiles\"
Dim ds As DataTable = Nothing
WinDSS.connectionString = ConfigurationManager.AppSettings("WinDSS_Connection").Replace("%DrivePath%", DrivePath)
ds = WinDSS.GetSysMst()
If ds.Rows.Count > 0 Then
WinDSSStoreNumber = ds.Rows(0)("store_no")
End If
Dim dt As New DataTable()
Dim conn As New SqlConnection(ConfigurationManager.AppSettings("WebData_Connection") & ConfigurationManager.AppSettings("WebDataSource"))
Dim cmd As SqlCommand
Dim da As New SqlDataAdapter
conn.Open()
cmd = conn.CreateCommand()
cmd.CommandType = CommandType.Text
cmd.CommandText= SELECT InvoiceDetail_Id, InvoiceHeader_Id, ActualFreightCharge, AmountCollected,
ChargedActualFreight, CollectedExternally, CollectedThroughAR, DateInvoiced, InvoiceNo,
InvoiceType, LineSubTotal, MasterInvoiceNo, OrderInvoiceKey, Reference1, TotalAmount,
TotalTax, isprocessed, storetoprocess
FROM dbo.InvoiceHeader
WHERE (isprocessed = 0) AND (storetoprocess = N'123')
da.SelectCommand = cmd
da.Fill(dt)
conn.Close()
Return dt
End Function
Additoinal info
This is the information given to me by my manager:
loop throught each below
SELECT InvoiceDetail_Id, InvoiceHeader_Id, ActualFreightCharge, AmountCollected,
ChargedActualFreight, CollectedExternally, CollectedThroughAR, DateInvoiced, InvoiceNo,
InvoiceType, LineSubTotal, MasterInvoiceNo, OrderInvoiceKey, Reference1, TotalAmount,
TotalTax, isprocessed, storetoprocess
FROM dbo.InvoiceHeader WHERE (isprocessed = 0) AND (storetoprocess = N'195')
Use the above InvoiceHeader_Id to loop throught all of the order information. Process each Bundle (Kit/)
SELECT InvoiceHeader_Id, LineDetails_Id, LineDetail_Id, OrderLine_Id, GiftFlag, [References],
GiftWrap, IsBundleParent, KitCode, KitQty, LevelOfService, LineSeqNo, LineType,
MaxLineStatus, MaxLineStatusDesc, MinLineStatus, MinLineStatusDesc, MinShipByDate,
OpenQty, OrderHeaderKey, OrderLineKey, OrderedQty, OriginalOrderedQty, OtherCharges,
OverallStatus, PipelineKey, PrimeLineNo, ReceivingNode, RemainingQty, ReqCancelDate,
ReqDeliveryDate,
ReqShipDate, SCAC, ScacAndService, ScacAndServiceKey, ShipNode, ShipToID, ShipToKey,
StatusQuantity, SubLineNo, SubstituteItemID, isprocessed
FROM dbo.OrderLine
WHERE (isprocessed = 0) AND (InvoiceHeader_Id = 13) AND (IsBundleParent = 'Y')
ORDER BY PrimeLineNo, SubLineNo
For each record in the above list query below and add as Zero (0) dollar amount. The cost is associated with the information above record (you may have to query tables to ge the values)
Get the OrderLineKey from the above record and query this below to get the associated sub items.
SELECT TOP (100) PERCENT dbo.BundleParentLine.InvoiceHeader_Id AS BPL_InvoiceHeader_Id,
dbo.BundleParentLine.LineDetails_Id AS BPL_LineDetails_Id, dbo.BundleParentLine.LineDetail_Id AS BPL_LineDetail_Id, dbo.BundleParentLine.OrderLine_Id AS BPL_OrderLine_Id, dbo.BundleParentLine.BundleParentLine_id, dbo.BundleParentLine.SubLineNo AS BPL_SubLineNo, dbo.BundleParentLine.PrimeLineNo AS BPL_PrimeLineNo, dbo.BundleParentLine.OrderLineKey AS BPL_OrderLineKey, dbo.OrderLine.*
FROM dbo.BundleParentLine INNER JOIN dbo.OrderLine ON dbo.BundleParentLine.OrderLine_Id = dbo.OrderLine.OrderLine_Id AND dbo.BundleParentLine.LineDetail_Id = dbo.OrderLine.LineDetail_Id AND dbo.BundleParentLine.LineDetails_Id = dbo.OrderLine.LineDetails_Id AND dbo.BundleParentLine.InvoiceHeader_Id = dbo.OrderLine.InvoiceHeader_Id
WHERE (dbo.BundleParentLine.OrderLineKey = N'76873264832') AND (dbo.BundleParentLine.InvoiceHeader_Id = 13) AND (dbo.BundleParentLine.LineDetails_Id = 6) AND (dbo.OrderLine.isprocessed = 0)
ORDER BY BPL_PrimeLineNo, BPL_SubLineNo
After Processed, set isprocessed = 1
Use the above InvoiceHeader_Id to loop throught all of the order information
SELECT InvoiceHeader_Id, LineDetails_Id, LineDetail_Id, OrderLine_Id, GiftFlag, [References],
GiftWrap, IsBundleParent, KitCode, KitQty, LevelOfService, LineSeqNo,
LineType,
MaxLineStatus, MaxLineStatusDesc, MinLineStatus, MinLineStatusDesc, MinShipByDate,
OpenQty, OrderHeaderKey, OrderLineKey, OrderedQty,
OriginalOrderedQty,
OtherCharges, OverallStatus, PipelineKey, PrimeLineNo, ReceivingNode, RemainingQty,
ReqCancelDate, ReqDeliveryDate, ReqShipDate, SCAC,
ScacAndService,
ScacAndServiceKey, ShipNode, ShipToID, ShipToKey, StatusQuantity,
SubLineNo, SubstituteItemID, isprocessed
FROM dbo.OrderLine
WHERE (isprocessed = 0) AND (InvoiceHeader_Id = 13) AND (IsBundleParent <> 'Y')
ORDER BY PrimeLineNo, SubLineNo
After Processed, set isprocessed = 1

Answer 1

This is not an answer but I want to pose this to prompt you for some clarification and it's not practical in the comments.
First, close visual studio and open SQL Server Management Studio and connect to the database
We'll build some select statements to get the data back and then we can think about an UPDATE statement
This first query you posted gives you the unprocessed headers for store 195 (straight from your post). I don't know if you want to do this for all stores or not. Paste it into SSMS and run it
SELECT H.*
FROM dbo.InvoiceHeader H
WHERE H.isprocessed = 0 AND H.storetoprocess = N'195'
Now, this second query gives you the unprocessed lines against that header that have IsBundleParent='Y'.
Look! No loops!
SELECT H.*, L.*
FROM dbo.InvoiceHeader H
INNER JOIN
dbo.OrderLine L
ON L.InvoiceHeader_Id = H.InvoiceHeader_Id
WHERE H.isprocessed = 0 AND H.storetoprocess = N'195'
AND L.isprocessed = 0 AND L.IsBundleParent = 'Y'
Then in your explanation you have For each record in the above list query below and add as Zero (0) dollar amount which makes no sense to me so perhaps you could clarify
Now we'll add the third query in which adds BundleParentLine (which does have inner joins in it already, but it's a pretty strange list of join fields)
SELECT H.*, L.*, BPL.*
FROM dbo.InvoiceHeader H
INNER JOIN
dbo.OrderLine L
ON L.InvoiceHeader_Id = H.InvoiceHeader_Id
INNER JOIN
dbo.BundleParentLine BPL
ON BPL.OrderLine_Id = L.OrderLine_Id
AND BPL.LineDetail_Id = L.LineDetail_Id
AND BPL.LineDetails_Id = L.LineDetails_Id
AND BPL.InvoiceHeader_Id = L.InvoiceHeader_Id
WHERE H.isprocessed = 0 AND H.storetoprocess = N'195'
AND L.isprocessed = 0 AND L.IsBundleParent = 'Y'
Then in your explanation you have After Processed, set isprocessed = 1, but what is 'processed' here? Is it just setting it to processed in the table?
To do that you just write an UPDATE statement. Here's one way to do that to update just the header (don't run it though until we understand what you're trying to do). Is the problem here that you want to set header and line to processed at the same time?
UPDATE InvoiceHeader
SET Processed = 1
WHERE isprocessed = 0 AND storetoprocess = N'195'
The fourth query you have seems to account for the IsBundleParent <> 'Y' case
Again, we need to know what add as Zero (0) dollar amount and processed means to go any further.