[转]Shell脚本中获取SELECT结果值的方法
http://blog.itpub.net/13885898/viewspace-1670297/
有时候我们可能会需要在Shell脚本中执行SELECT语句,并将结果赋值给一个变量,对于这样的情形,我们可以用以下的方法来达到目的。
点击(此处)折叠或打开
- #!/bin/ksh
- #
- # Created : 2015.05.25
- # Updated : 2015.05.25
- # Author : Jet Chenxi Zhang
- # Description : Get SELECT result in Shell
- # Variable Definitions #
- ORACLE_SID=audtest
- ORACLE_HOME=/app/oracle/product/database/11.2.0/db_1
- PATH=$PATH:$ORACLE_HOME/bin
- DBNAME=
- # Get Database name by quering v$database #
- DBNMAE=`
- sqlplus -s /nolog <<EOF
- set echo off feedback off heading off underline off;
- conn / as sysdba;
- select name from v\\$database;
- exit;
- EOF`
- echo "Database name: "$DBNMAE
如上代码,可以将获取Database Name,执行结果如下:
- [oracle@hxddcx02 ~]$ ./query_dbname.sh
- Database name: AUDTEST
可以看到SELECT的结果已被正确赋值给Shell的变量。如果SELECT中有多个列的值,也可以用此方法,只是需要将结果进行分拆,如用awk:
点击(此处)折叠或打开
- #!/bin/ksh
- #
- # Created : 2015.05.25
- # Updated : 2015.05.25
- # Author : Jet Chenxi Zhang
- # Description : Get SELECT results in Shell
- # Variable Definitions #
- ORACLE_SID=audtest
- ORACLE_HOME=/app/oracle/product/database/11.2.0/db_1
- PATH=$PATH:$ORACLE_HOME/bin
- QUERYRES=
- DBID=
- DBNAME=
- # Get Database name by quering v$database #
- QUERYRES=`
- sqlplus -s /nolog <<EOF
- set echo off feedback off heading off underline off;
- conn / as sysdba;
- select dbid, name from v\\$database;
- exit;
- EOF`
- DBID=`echo $QUERYRES | awk -F' ' '{print $1}'`
- DBNAME=`echo $QUERYRES | awk -F' ' '{print $2}'`
- echo "Database ID: "$DBID
- echo "Database name: "$DBNAME
运行结果如下:
- [oracle@hxddcx02 ~]$ ./query_dbname2.sh
- Database ID: 811711272
- Database name: AUDTEST