MS Access: advanced patterns When Using Domain Aggregate Functions in Queries
I'm getting frustrated with I'm trying to figure out I'm trying to implement I'm maintaining legacy code that I'm working with an scenario with domain aggregate functions in MS Access 2016... I have a table named `Employees` with columns `EmployeeID`, `DepartmentID`, and `Salary`. I want to calculate the average salary for each department using the `DAvg` function within a query. The SQL statement I wrote looks like this: ```sql SELECT DepartmentID, DAvg('Salary', 'Employees', 'DepartmentID=' & DepartmentID) AS AvgSalary FROM Employees GROUP BY DepartmentID; ``` However, when I run this query, I'm getting the behavior: **'Too Few Parameters. Expected 1'**. I've tried several variations of the criteria, and even switched to using `DLookup`, but I still receive similar errors. I've confirmed that `DepartmentID` is properly defined and non-null for all employee records. I also attempted to isolate the scenario by running the query without the `DAvg` function: ```sql SELECT DepartmentID FROM Employees GROUP BY DepartmentID; ``` ``` This returns the expected results, so I believe the scenario lies within the `DAvg` implementation. Any suggestions on how to correctly use domain aggregate functions or alternatives to achieve the desired average salary per department? Are there any known pitfalls with using domain functions in grouped queries? Any help would be greatly appreciated! I'm working on a CLI tool that needs to handle this. Thanks in advance! For context: I'm using Sql on Windows. Thanks in advance! For context: I'm using Sql on Linux. I'd really appreciate any guidance on this. This is for a CLI tool running on Linux. Is there a better approach? How would you solve this? My development environment is Ubuntu 22.04.