syntax error for update sql in access - sql

Question

I got a syntax error when I ran a sql update in access 2013. The targeted table saves inventory balance data. to update the balance, the original data will subtract the consumption amount resulted from production activities. I use a query to get the sum of consumption. My codes are as follows:
Private Sub Command4_Click()
CurrentDb.Execute ("UPDATE tbl_Current_Stock As o" & _
“Inner join preview_Of_Raw_Material_Consumption As p” & _
“On o.Raw_Material =p.[Ingredient/Packaging material]” & _
"Set o.Stock_Level = o.Stock_Level- p.SumOfConsumption" )
End Sub
EDIT - Add current code that isn't working:
CurrentDb.Execute ("UPDATE tbl_Current_Stock As o Inner join preview_Of_Raw_Material_Consumption As p On o.[Raw_Material] = p.[Ingredient/Packaging material]Set o.[Stock_Level] = o.[Stock_Level]- p.SumOfConsumption from o p")

Answer 1

Your query looks something like this:
UPDATE tbl_Current_Stock As oInner join preview_Of_Raw_Material_Consumption As pOn o.Raw_Material =p.[Ingredient/Packaging material]Set o.Stock_Level = o.Stock_Level- p.SumOfConsumption
Can you spot the problem? Yes, you have run-on lines in the query. If you print the query string before running it, then the problem is obvious.
The solution is to put appropriate spaces in the string:
CurrentDb.Execute ("UPDATE tbl_Current_Stock As o" & _
" Inner join preview_Of_Raw_Material_Consumption As p” & _
" On o.Raw_Material = p.[Ingredient/Packaging material]” & _
" Set o.Stock_Level = o.Stock_Level- p.SumOfConsumption" )

Answer 2

Thank you Gordon. I finaly found the real problem of my code. I would like to share my experiences and it maybe helpful for others who are bothered by the same or similar problem. As I mentioned in my first question post, one of my update source comes from a query. this query is a sum of individual consumption and it is "unupdatable". By searching online I use a temporal table as the data source and the code runs smoothly.
CurrentDb.Execute ("Update tbl_Current_Stock As o Inner join tbl_Temp_Raw_Material_Consumption As s On o.Raw_Material = s.[Ingredient/Packaging material] Set o.Stock_Level = o.Stock_Level - s.Consumption")
Here tbl_Temp_Raw_Material_Consumption is the make table query of the original query.