在數(shù)據(jù)庫(kù)運(yùn)維的過(guò)程中，Shell 腳本在很大程度上為運(yùn)維提供了極大的便利性。而shell 腳本參數(shù)作為變量傳遞給SQL以及SQL腳本也是DBA經(jīng)常碰到的情形之一。本文主要討論了如何將shell腳本的參數(shù)傳遞到SQL腳本之中并執(zhí)行SQL查詢。

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1、啟動(dòng)sqlplus時(shí)執(zhí)行腳本并傳遞參數(shù)

robin@SZDB:~/dba_scripts/custom/awr> more tmp.sh

#!/bin/bash

# ----------------------------------------------

#  Set environment here

#  Author : Robinson Cheng

# ----------------------------------------------

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. yyyymmddhh34):" begin_date

  read -p "please input end date and time(e.g. yyyymmddhh34):" end_date

else

  ORACLE_SID=${1}

  begin_date=${2}

  end_date=${3}

fi

export ORACLE_SID begin_date end_date

#Method 1: pass the parameter to script directly after script name

sqlplus -S gx_adm/gx_adm @/users/robin/dba_scripts/custom/awr/tmp.sql $begin_date $end_date

exit

robin@SZDB:~/dba_scripts/custom/awr> more tmp.sql

SELECT snap_id, dbid, snap_level

 FROM dba_hist_snapshot

WHERE TO_CHAR (begin_interval_time, 'yyyymmddhh34') = '&1'

   AND TO_CHAR (end_interval_time, 'yyyymmddhh34') = '&2';

exit;

2、在SQL提示符下傳遞參數(shù)

robin@SZDB:~/dba_scripts/custom/awr> more tmp2.sh

#!/bin/bash

# ----------------------------------------------

#  Set environment here

#  Author : Robinson Cheng

# ----------------------------------------------

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. yyyymmddhh34):" begin_date

  read -p "please input end date and time(e.g. yyyymmddhh34):" end_date

else

  ORACLE_SID=${1}

  begin_date=${2}

  end_date=${3}

fi

export ORACLE_SID begin_date end_date

#Method 2: pass the parameter in SQL prompt. Using the same method with method 1

sqlplus -S " / as sysdba" <<EOF

@/users/robin/dba_scripts/custom/awr/tmp.sql $begin_date $end_date

exit;

EOF

exit

3、通過(guò)定義變量的方式來(lái)傳遞參數(shù)

robin@SZDB:~/dba_scripts/custom/awr> more tmp3.sh

#!/bin/bash

# ----------------------------------------------

#  Set environment here

#  Author : Robinson Cheng

# ----------------------------------------------

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. yyyymmddhh34):" begin_date

  read -p "please input end date and time(e.g. yyyymmddhh34):" 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, 'yyyymmddhh34') = '&begin_date'

   AND TO_CHAR (end_interval_time, 'yyyymmddhh34') = '&end_date';

exit;

4、測(cè)試腳本

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. yyyymmddhh34):2013030709

please input end date and time(e.g. yyyymmddhh34):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、小結(jié)

a、本文主要描述了將shell的參數(shù)傳遞給SQL腳本

b、方式1的用法是直接將shell變量跟在腳本之后, sqlplus userid/pwd @script_name $para1 $para2

c、方式2是啟動(dòng)sqlplus后在SQL提示符下來(lái)傳遞參數(shù), SQL>@script_name $para1 $para2

d、方式3則是將shell變量的值先傳遞給define定義的變量，然后再傳遞給SQL腳本 SQL>@script_name var1 var2

e、注意方式3中SQL腳本的替代變量與define定義的變量名相同

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本文名稱：Linux/Unixshell參數(shù)傳遞到SQL腳本-創(chuàng)新互聯(lián)
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