Linux/Unix shell sql 之间传递变量

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

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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

二、更多参考