SELECT IT.ΑΑ_ΧΡΕΩΣΗΣ, IT.[Transaction Item], IT.Quantity,
IT.[Unit Cost], IT.[Created Date], IT.ΑΡΤΙΜΟΛΟΓΙΟΥ,
IT.ΠΟΣΟΛΟΓΡΑΦΟΣ, IT.ΑΑ_ΠΙΣΤΩΣΗΣ, IT.[Transaction Type],
Inventory.Supplier
FROM Inventory
INNER JOIN [Inventory Transactions] IT
ON Inventory.ID = IT.[Transaction Item]
WHERE...