MS ACCESS SQL连接语法

Question

I can get this query to run if I remove the Join, but once I add the join, I get the following error:

Run-Time error '3135': Syntax error in Join Operation

sourceDB = "C:\sourcedb.accdb"

SQL = "SELECT e1.lid " & _
        "FROM (eventlog e1 IN  '" & sourceDB & "'" & _
        "LEFT JOIN eventlog e2 ON e2.lid = e1.lid)"

Any advice on what I might be doing wrong

Answer 1

Try changing your code to the following:

sourceDB = "C:\sourcedb.accdb"

SQL = "SELECT e1.lid " & _
      "FROM [" & sourceDB & "].[eventlog] AS e1 " & _
      "LEFT JOIN eventlog AS e2 ON e2.lid = e1.lid"

Answer 2

You have an obvious syntax error in your query: the join must be between two Tables, not the Table and Database name. Take a look at this canonical example (re: https://msdn.microsoft.com/en-us/library/office/ff198084.aspx ) and correct your query correspondingly:

SELECT CategoryName, ProductName FROM Categories LEFT JOIN Products 
ON Categories.CategoryID = Products.CategoryID;

Hope this will help. Best regards,