Joining 4 Tables with different conditions - sql

Question

I use vb.net 2012 and msaccess2016 as database. I Have 4 tables. Item master,closing,Purchase,Issue. Now I want to get the result for a period in below formatted datagridview. Below are columns.
Item Name(Item Master)
Category(Item Master)
Unit(Item Master)
Sum of Quantity(closing)
Sum of Quantity(Purchase)
Sum of Quantity(Issue)
I have create a query with Item master and Closing and it's working. But when I try to purchase or issue there is no data. Purchase and issue table got no data.
Dim sdate, edate As Date
sdate = dtsdate.Value
edate = dtedate.Value
Dim sqlSelect As String = "SELECT itemmaster.[Item Name], itemmaster.Category, itemmaster.Unit," _
& " Sum(Closing.Qty) AS Opening FROM itemmaster INNER JOIN Closing ON " _
& "itemmaster.[Item Name] = Closing.[Item Name] WHERE(((Closing.closeDate) >= #" & sdate & " # And (Closing.closeDate) <=#" & edate & " #))" _
& " GROUP BY itemmaster.[Item Name], itemmaster.Category, itemmaster.Unit"
Try
Dim con As New Odbc.OdbcConnection
con.ConnectionString = "Dsn=sdbinventory;"
Dim dt As New DataTable("user2")
Using cmd = New Odbc.OdbcCommand(sqlSelect, con)
con.Open()
Dim da As New System.Data.Odbc.OdbcDataAdapter(sqlSelect, con)
da.Fill(dt)
con.Close()
End Using
dgtvreport.DataSource = dt
Catch ex As Exception
Throw
End Try
Can you please help me to add rest two columns.
Thanks
My query
PARAMETERS sdate DateTime, edate DateTime;
SELECT itemmaster.[Item Name], itemmaster.Category, itemmaster.Unit, Sum(Closing.Qty) AS SumOfQty1, Sum(Purchase.Qty) AS SumOfQty, Sum(Issue.Quantity) AS SumOfQuantity
FROM ((itemmaster INNER JOIN Closing ON itemmaster.[Item Name] = Closing.[Item Name]) INNER JOIN Issue ON itemmaster.[Item Name] = Issue.[Item Name]) INNER JOIN Purchase ON itemmaster.[Item Name] = Purchase.[Item Name]
WHERE (((Closing.closeDate)>=[sdate] And (Closing.closeDate)<=[edate]) AND ((Purchase.PDate)>=[sdate] And (Purchase.PDate)<=[edate]) AND ((Issue.Idate)>=[sdate] And (Issue.Idate)<=[edate]))
GROUP BY itemmaster.[Item Name], itemmaster.Category, itemmaster.Unit;
I have tried to run it in access. Also have added sample data. I just want to import all item names,category and unit from itemmaster. Now I want to add opening stock in next column and purchase and issue. I want to create and itemwise report.
Like
Item Name Category Unit Opening Purchased Issued Balance
item1 Grocery Kg 2 3 4 1
item2 beverages PCS 0 1 1 0
Item3 vegetables kg 2 0 0 2
item4 consumable Pkt 10 2 1 11

Answer 1

#june7 yes I belive your is the best answer which is also know by me but I have searched if there is any other option and in this process you have really gave me the in depth knowledge and differences about the different type of queries. thanks.