灵活结合Linux/Unix Shell 与SQL 之间的变量传输，极大程度的提高了DBA的工作效率，本文针对Linux/Unix shell sql 之间传递变量给出几个简单的示例以供参考。
Linux/Unix 下调用SQL,RAMN 请参考：Linux/Unix shell 脚本中调用SQL,RMAN脚本
一、示例
- 1、shell变量接受sql返回值之方式一
- oracle@SZDB:~> more ./retval.sh
- #!/bin/bash
- RETVAL=`sqlplus -silent scott/tiger <<EOF
- SET PAGESIZE 0 FEEDBACK OFF VERIFY OFF HEADING OFF ECHO OFF
- SELECT * FROM emp WHERE ename='SCOTT';
- EXIT;
- EOF`
- if [ -z "$RETVAL" ]; then
- echo "No rows returned from database"
- exit 0
- else
- echo $RETVAL
- fi
- oracle@SZDB:~> chmod u+x retval.sh
- oracle@SZDB:~> ./retval.sh
- 7788 SCOTT ANALYST 7566 19-APR-87 34171.88 20
- 2、shell变量接受sql返回值之方式二
- oracle@SZDB:~> more ./retval_2.sh
- #!/bin/bash
- # Author : Robinson Cheng
- # Blog : http://blog.csdn.net/robinson_0612
- sqlplus -S "scott/tiger" <<EOF
- SET PAGESIZE 0 FEEDBACK OFF VERIFY OFF HEADING OFF ECHO OFF
- col cnt new_value v_cnt
- SELECT count(*) cnt FROM emp WHERE deptno=10;
- exit v_cnt
- EOF
- VALUE="$?"
- echo "show rows for deptno 10:$VALUE"
- 3、将shell变量作为参数传递给sql脚本
- oracle@SZDB:~> more ./retval_3.sh
- #!/bin/bash
- v_empno="$1"
- sqlplus -S "scott/tiger" <<EOF
- SET PAGESIZE 0 FEEDBACK OFF VERIFY OFF HEADING OFF ECHO OFF
- SELECT ename FROM emp WHERE empno=$v_empno;
- exit
- EOF
- exit
- oracle@SZDB:~> ./retval_3.sh 7788
- SCOTT
- 转：http://blog.csdn.net/leshami/article/details/7978179