BTEQ syntax with CAST embedded in SUBSTRING function - response (1) by dnoeth

I doubt it's working in SQLA, because you mix SUBSTR and SUBSTRING syntax, it's either

 SUBSTRING(CAST('' AS  CHAR(8192)) FROM 1 FOR 256  ) 

or

 SUBSTR(CAST('' AS  CHAR(8192)) , 1, 256  ) 

 
I'm not going to ask why don't you use a simple CAST('' as CHAR(${SPC_NB}) instead :-)
Dieter