Sql commands in cmd file

Question

I have been forced to write some simple scripts for Windows users who use Oracle. I used to write in bash/ksh and have no experience at all about windows scripts. What I figured out is :
cmd file:
echo off
set script_dir= .
set log=%script_dir%\log\db.log
set scrsql=%script_dir%\db.sql
sqlplus /nolog @%scrsql% >> %log%
so my questions are :
- I would like to have all commands ( batch and sql) visible inside cmd file. Is it any way to put sql commands line by line into cmd file ?
- how to redirect output of sql command ( for example simple select ) to screen or file
- how to put external parameter into sql command ( for example select xx from yy where zz=@param)
KP>

Answer 1

well, I do not see too much responses for my question - maybe it was not clear enough ?
Let me write it in this way:
I have a short ksh script:
+#!/usr/bin/ksh+
LOG_DIR=$ORACLE_HOME/dba/scripts/log
LOG=$LOG_DIR/log.txt
VAR=$2
export ORACLE_SID=$1
sqlplus -s '/as sysdba' << ! >> $LOG                  <<  call sqlplus commands inside a script
whenever sqlerror exit failure;
select * from table where columnsvalue= $VAR;          <<  use variable in sql query
+!+
How to convert, in most easy way, such a script to windows batch. If I get an answer it solves almost all problems I have.