The multi-part identifier "-" could not be bound - sql

Question

I have this SQL:
SELECT
dbo.ARTRNTBL.Item_code, dbo.ARTRNTBL.Item_name, dbo.FAFPHTBL.rate_value,
dbo.FAFPHTBL.quantity, dbo.FAFPHTBL.total, dbo.FAFPHTBL.TIN, dbo.EGRDGTBL.return_type
FROM
dbo.FAFPHTBL
INNER JOIN
dbo.ARTRNTBL
INNER JOIN
dbo.EGRDGTBL ON dbo.FAFPHTBL.Item_code = dbo.ARTRNTBL.Item_code
ON dbo.ARTRNTBL.Item_code = dbo.EGRDGTBL.Item_code
WHERE
dbo.FAFPHTBL.invoice_no = '" & TextBox39.Text & "'"
I keep getting this error:
The multi-part identifier "dbo.FAFPHTBL.Item_code" could not be bound.
How can I fix this?

Answer 1

The problem is the way the join expressions are nested. At the time dbo.FAFPHTBL.Item_code is used, it's part of this expression:
dbo.ARTRNTBL INNER JOIN dbo.EGRDGTBL ON dbo.FAFPHTBL.Item_code = dbo.ARTRNTBL.Item_code
Notice the dbo.FAFPHTBL object is not included with this expression.
You probably want this instead:
SELECT dbo.ARTRNTBL.Item_code, dbo.ARTRNTBL.Item_name, dbo.FAFPHTBL.rate_value,
dbo.FAFPHTBL.quantity, dbo.FAFPHTBL.total, dbo.FAFPHTBL.TIN, dbo.EGRDGTBL.return_type
FROM dbo.FAFPHTBL
INNER JOIN dbo.ARTRNTBL ON dbo.FAFPHTBL.Item_code = dbo.ARTRNTBL.Item_code
INNER JOIN dbo.EGRDGTBL ON dbo.ARTRNTBL.Item_code = dbo.EGRDGTBL.Item_code
WHERE dbo.FAFPHTBL.invoice_no = #InvoiceNumber
While I'm here:
DO NOT USE STRING CONCATENATION LIKE THAT TO INCLUDE A TEXTBOX IN THE QUERY!
And yes, I know I'm shouting, because it's that important. If you're not using parameterized queries, you're practically begging for problems with your app, some of them pretty serious security issues. If you set me down in front of your app, I could easily delete all your data or elevate my permission to admin level.