在数据库运维的过程中,Shell 脚本在很大程度上为运维提供了极大的便利性。而shell 脚本参数作为变量传递给SQL以及SQL脚本也是DBA经常碰到的情形之一。本文主要讨论了如何将shell脚本的参数传递到SQL脚本之中并执行SQL查询。
有关shell与SQL之间的变量传递,请参考:Linux/Unix shell sql 之间传递变量
1、启动sqlplus时执行脚本并传递参数
robin@SZDB:~/dba_scripts/custom/awr> more tmp.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 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 $end_date exit robin@SZDB:~/dba_scripts/custom/awr> more tmp.sql SELECT snap_id, dbid, snap_level FROM dba_hist_snapshot WHERE TO_CHAR (begin_interval_time, 'yyyymmddhh24') = '&1' AND TO_CHAR (end_interval_time, 'yyyymmddhh24') = '&2'; exit; |
2、在SQL提示符下传递参数
robin@SZDB:~/dba_scripts/custom/awr> more tmp2.sh #!/bin/bash # ---------------------------------------------- # Set environment here # Author : Robinson Cheng # Blog : http://blog.csdn.net/robinson_0612 # ---------------------------------------------- if [ -f ~/.bash_profile ]; then . ~/.bash_profile fi if [ -z "${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 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 |