Question

I’m doing a request to get the number of rows in 3 different tables.

So I use an Union between 3 simples request to Count rows in each tables.

But I get an error : “Syntax error in Join Operation”

even tho I have no join in my query…

any one can help me with this please?

And here’s the request :

Select Sum(asd) as 'totalRows' 
FROM ((Select Count(*) as 'asd' from Machines) 
Union (Select Count(*) as 'asd' from Factures) 
Union (Select Count(*) as 'asd'  From Consommation)) 
 as 'tab1'

Answer 1

I’ve solved this by changing the request, it’s now :

Select (Select Count() from Machines) as cntMachines, 
    (Select Count() From Factures) as cntFactures, 
    (Select Count(*) from Consommation) as cntConsommation 
From [Machines Or any other table]

It’s not the answer to my question but it’s a walk-around.

A real answer would still be appreciated. 🙂