Is there a way to choose which table do I merge using SQL in MS Access through entering parameter value?
Let's say I have 3 tables: Users, 2021 and 2022.
Any my query is:
SELECT
Users.code, 2021.consumption
FROM
Users
INNER JOIN
2021 ON Users.code = 2021.code
WHERE
(((Users.code) = [Insert the user code]))
I get "Enter Parameter Value" window to filter the code that I want to check, but I would like to get the same to choose other table (2022)
CodePudding user response:
You can't have table names as parameters as far as I know, but you could do something like this:
SELECT
U.code, Yr.consumption
FROM
Users as U
INNER JOIN
(select * from [2021] Yr where [Insert Year]=2021
UNION ALL
select * from [2022] Yr where [Insert Year]=2022
) as Yr
ON U.code = Yr.code
WHERE
(U.code = [Insert the user code])
You need to match the query to the existing/new tables; or pre-create them.