Monday, September 14, 2020

Connect Oracle Database From Shell Script

There are two ways to connect Oracle from shell script.

1. You need to install SQL Plus Client on your server

2. You'll have install ORACLE on your server.

I share example for both.

Create file Oracle-ShellScript.sh

sudo nano Oracle-ShellScript.sh




Example with $ORACLE_HOME, add next lines into file. Check your path ORACLE_HOME

#!/bin/sh

#parameters DB
DATABASE_USER=$1
DATABASE_PASS=$2
IP=$3
SID=$4


DATE=`date +"%d%m%y"`
u="$USER"
echo "User name $u"

cd /home/$u

LOCATION=$PWD
echo "path ${LOCATION}"


ORACLE_HOME=/u01/app/oracle/product/11.2.0/xe
export ORACLE_HOME
echo $ORACLE_HOME

dbConexion() {
$ORACLE_HOME/bin/sqlplus -s <<EOF> ${LOCATION}/log${DATE}.out
$DATABASE_USER/$DATABASE_PASS@//$IP:1521/$SID
select sysdate from dual;

EOF

}

dbValidate() {
p=`cat ${LOCATION}/log${DATE}.out | grep SYSDATE`
if [ -n "$p" ]
then
echo "Ok conexion"
rm ${LOCATION}/log${DATE}.out
else
echo "Bad conexion."
exit
fi
}

echo "Start process"
dbConexion
echo "Check conexion on DB"
dbValidate
echo "End process"



Example with SQL Plus client add next lines into file:

#!/bin/sh

#parameters DB
DATABASE_USER=$1
DATABASE_PASS=$2
IP=$3
SID=$4


DATE=`date +"%d%m%y"`
u="$USER"
echo "User name $u"

cd /home/$u

LOCATION=$PWD
echo "path ${LOCATION}"

dbConexion() {
sqlplus64 -s <<EOF> ${LOCATION}/log${DATE}.out
$DATABASE_USER/$DATABASE_PASS@//$IP:1521/$SID
select sysdate from dual;

EOF

}

dbValidate() {
p=`cat ${LOCATION}/log${DATE}.out | grep SYSDATE`
if [ -n "$p" ]
then
echo "Ok conexion"
rm ${LOCATION}/log${DATE}.out
else
echo "Bad conexion."
exit
fi
}

echo "Start process"
dbConexion
echo "Check conexion on DB"
dbValidate
echo "End process"

Test: Send the next argument to shell script user_db, password_db, ip and sid

sh Oracle-ShellScript.sh YOUR_USER_DB YOUR_PASSWORD_DB YOUR_IP YOUR_SID












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