Shell reads Oracle database table records

xflag=0;
While [$xflag-ne 10]
Todo
Value= ' Sqlplus-s dbusername/uspass@xxxx <<eof
Set heading off;
Set feedback off;
Set pagesize 0;
Set verify off;
Set echo off;
Select Service_sn from rule_phone_sell_activity where Rownum=1 and flag=0 and sell_type=1;
Exit
EOF '
echo "**************************";
If [-Z "$VALUE"]; Then
echo "Rule_phone_sell_activity table has no flag=0 record";
Exit 0;
Else
echo "Current service_sn: $VALUE";
Hq2_kf_sell execsql sell_10010 file_seq $VALUE;
Fi
echo "**************************";

Done
Write the shell for the first time and use it for the actual project