????3?????????????????????????

robin@SZDB:~/dba_scripts/custom/awr> more tmp3.sh
#!/bin/bash

# ----------------------------------------------
#  Set environment here
#  Author : Robinson Cheng
#  Blog   : http://blog.csdn.net/robinson_0612
# ----------------------------------------------

if [ -f ~/.bash_profile ]; then
    . ~/.bash_profile
fi

if [ -z "${1}" ] || [ -z "${2}" ] || [ -z "${3}" ] ;then
    echo "Usage: "
    echo "      `basename $0` <ORACLE_SID> <begin_dat> <end_date>"
    read -p "please input begin ORACLE_SID:" ORACLE_SID
    read -p "please input begin date and time(e.g. yyyymmddhh24):" begin_date
    read -p "please input end date and time(e.g. yyyymmddhh24):" end_date
else
    ORACLE_SID=${1}
    begin_date=${2}
    end_date=${3}
fi

export ORACLE_SID begin_date end_date

#Method 3: pass the parameter to global variable firstly.
sqlplus -S " / as sysdba" <<EOF
define begin_date=$begin_date      
define end_date=$end_date
prompt "variable value for begin_date is: &begin_date"
prompt "variable value for end_date id : &end_date"
@/users/robin/dba_scripts/custom/awr/tmp3.sql begin_date end_date
exit;
EOF
exit

robin@SZDB:~/dba_scripts/custom/awr> more tmp3.sql
SELECT snap_id?? dbid?? snap_level
  FROM dba_hist_snapshot
 WHERE TO_CHAR (begin_interval_time?? 'yyyymmddhh24') = '&begin_date'
       AND TO_CHAR (end_interval_time?? 'yyyymmddhh24') = '&end_date';
exit;

????4????????

robin@SZDB:~/dba_scripts/custom/awr> ./tmp.sh
Usage:
      tmp.sh <ORACLE_SID> <begin_dat> <end_date>
please input begin ORACLE_SID:CNMMBO
please input begin date and time(e.g. yyyymmddhh24):2013030709
please input end date and time(e.g. yyyymmddhh24):2013030710

   SNAP_ID       DBID SNAP_LEVEL
---------- ---------- ----------
     13877  938506715          1

robin@SZDB:~/dba_scripts/custom/awr> ./tmp2.sh MMBOTST 2013030709 2013030710

   SNAP_ID       DBID SNAP_LEVEL
---------- ---------- ----------
     36262 3509254984          1

robin@SZDB:~/dba_scripts/custom/awr> ./tmp3.sh MMBOTST 2013030710 2013030711
"variable value for begin_date is: 2013030710"
"variable value for end_date id : 2013030711"

   SNAP_ID       DBID SNAP_LEVEL
---------- ---------- ----------
     36263 3509254984          1

????5??С??

????a????????????????shell??????????SQL???

????b?????1???÷???????shell?????????????sqlplus userid/pwd @script_name $para1 $para2

????c?????2?????sqlplus????SQL??????????????????SQL>@script_name $para1 $para2

????d?????3?????shell?????????????define???????????????????SQL??? SQL>@script_name var1 var2

????e??????3??SQL??????????????define?????????????