@echo off

SETLOCAL EnableDelayedExpansion
setlocal 

if .%1.==.. goto usage
if .%2.==.. set parmfile=parms.txt
if NOT EXIST %1 goto noscript
if NOT EXIST %parmfile% goto noparms

set comm=
for /F %%n in (%parmfile%) do set comm=!comm! -e "s/%%n/g"
echo %comm%

sed %comm% %1 | db2 +p -t -v -z %1.log

endlocal
goto :eof

:usage
@echo usage: %~n0 db2_script_file [ parameter_file ]
goto :eof

:noscript
@echo error: no db2_script_file
goto :eof

:noparms
@echo error: no parameter_file
goto :eof

&&schema_name/'schema'
...
&&parmN/some_value