Parameter changing datasource type DB2->ODBC

[AGo]

Hi,

I have this M code and trying to return the TABLE1 table for conditionally 2 datasources (ODBC and DB2) which has the same structure.

I'm not good at M: I think that the third row generates  a parameter field, but I have yet created a parameter (called "parameter") as another datasource that I want to manage outside this code.

"parameter" is managed to have 2 pre-defined values selectable "ODBC" and "DB2".

For me, for a better understanding of the code structure, suppose that I also want to rename the field "LOREM" in "IPSUM".

let

#"Origine" = (para as text) =>
if para = "ODBC"
then

let
    Source = Odbc.DataSource("dsn=dsnname", [HierarchicalNavigation=true])
   in
    Source

else 

let
    Source = DB2.Database("servername", "test", [Implementation="IBM"])
 in
 Source

in #"Origine"

 @Anonymous

Thank you in advance!

[Greg_Deckler]

Invoking @ImkeF

[ImkeF · Accepted solution]

Hi @AGo,

in M, every query step can be seen as a variable. So your requirement can be solved like this:

let
	Odbc = Odbc.DataSource("dsn=dsnname", [HierarchicalNavigation=true]),
	DB2 = DB2.Database("servername", "test", [Implementation="IBM"]),
	Origine = if para = "ODBC" then Odbc else DB2
in 
	Origine

[AGo]

Works like a charm! And thanks forthe functioning explaining.