Please correct the error in the following script

Shell Programming and Scripting
1 
#!/bin/ksh
db_user=$DB_USER_NAME
db_pwd=$DB_PASSWORD
db_sid=$TWO_TASK
if [ $# -ne 1 ]; then
echo "\tUsage: MoveUsageProcessing <BC Log file Name>"
exit 1
else
BCLogFileName=$1
fi
grep -i  'MoveUsage daemon needs to run on this account before it can be billed'  $1 |awk -F\| '{for(i=0;++i<=NF;) if($i ~ /Acct/) print substr($i,6)}' > ./$1.txt
echo " log file path is : './$1.txt' ";

sqlplus -s /nolog |&
print -p "connect $db_user/$db_pwd@$db_sid;"
print -p "SPOOL output.txt;"

while read var_ack_party_name
do
print -p "set pagesize 0 feedback off verify off heading off echo off linesize 100 \n"
print -p "select *  from bus_event where ack_party_name like 'MOVE_USAGE_DAEMON%' and event_data_text like '%"$var_ack_party_name"%';"
done <./$1.txt

awk '/OrdAcctCycChg/ {print $1,substr($3,length($3),1)}' ./output.txt | while read a b
do
 MoveUsageDaemon -r $b -i $b -e $a -p 1
done

the output when i ran this is :

atlvivd_on_burrow /tmp> newtrial.ksh 20111011.71BC.LOG
 log file path is : './20111011.71BC.LOG.txt' 
awk: can't open ./output.txt

The problem may be because of accessing output.txt file before it is getting created(because the query(in bold) is taking much time)
I need to wait till the query is executed completely...can anyone help me in this:(

2

Since you are reading from stdin, why not do something like:

(
  print -- "connect $db_user/$db_pwd@$db_sid;"
  print -- "SPOOL output.txt;"

  while read var_ack_party_name
  do
    print -- "set pagesize 0 feedback off verify off heading off echo off linesize 100 \n"
    print -- "select *  from bus_event where ack_party_name like 'MOVE_USAGE_DAEMON%' and event_data_text like '%"$var_ack_party_name"%';"
  done 
  print -- 'quit;'
) \
| sqlplus -s /nolog