Passing PL/SQL variable value to Shell Varible

ganapati · #1 (**permalink**) 01-29-2007

Hi my UNIX Friends,

Im calling some SQL scripts through Unix Shell scripting.
How do I export the value of PL/SQL variable value into a Unix shell script variable?

Also could any one inform me about the 'search' and 'cut' utility of PL/SQL
(like 'grep' and 'cut' in Shell scripting).

Thanks and Regards,
Ganapathi.

roopla · #2 (**permalink**) 01-29-2007

shell_var=`$ORACLE_HOME/bin/sqlplus -S test/passwd@service > ${logfile} 2>&1 << EOF
SET FEED OFF;
SET TERMOUT ON;
SET VERIFY OFF;
SET ECHO OFF;
SET HEAD OFF;
SELECT sysdate from dual FROM DUAL;
EXIT
EOF`

echo $shell_var

ganapati · #3 (**permalink**) 01-30-2007

Roopla, Thanks a lot. It worked for me with some fine tuning as below.

shell_var=`sqlplus -s scott/tiger << !
SET HEAD OFF;

SELECT sysdate from dual;
EXIT
!`
echo $shell_var

But still I dont know how to pass multiple values from SQL to Shell script.
Any help in this regard will definitely help all of us to enhance our knowledge.

Once again Many thanks for your sincere help, Roopla.

With Regards,
Ganapati.

radoulov · #4 (**permalink**) 01-30-2007

check this

ganapati · #5 (**permalink**) 01-30-2007

Great help and many thanks for your guide 'Radoulov'.

Below code is working perfectly to pass multiple values from SQL to Shell script.

printf "%s\n" "set pages 0 serverout on feed off" \
"select ENAME from emp where ENO=7021;" \
"select sysdate from dual;" \
"select min(sal) from emp;" \
"select max(sal) from emp;" \
"select avg(sal) from emp;" \
| sqlplus -s scott/tiger \
| { read var1; read var2; read var3; read var4; read var5;
}
echo "Employee Name is $var1"
echo "Date is $var2"
echo "Minimum of Salary is $var3"
echo "Maximum of Salary is $var4"
echo "Average of Salary is $var5"

But still I've one more requirement.....,
What is the case for the same query where if I want assign more values to var1 ?

printf "%s\n" "set pages 0 serverout on feed off" \
"select ENAME from emp;" \
"select sysdate from dual;" \
"select min(sal) from emp;" \
"select max(sal) from emp;" \
"select avg(sal) from emp;" \
| sqlplus -s scott/tiger \
| { read var1; read var2; read var3; read var4; read var5;
}
echo "Employee Name is $var1"
echo "Date is $var2"
echo "Minimum of Salary is $var3"
echo "Maximum of Salary is $var4"
echo "Average of Salary is $var5"

Please help me last time.

With Regards,
Ganapati.

aigles · #6 (**permalink**) 01-30-2007

You can try somthing like that (not tested) :

Code:

printf "%s\n" "set pages 0 serverout on feed off" \
"select sysdate from dual;" \
"select min(sal) from emp;" \
"select max(sal) from emp;" \
"select avg(sal) from emp;" \
"select ENAME from emp;" \
| sqlplus -s scott/tiger \
| { read read var2; read var3; read var4; read var5;
     var1=""
     while read emp
     do
         var1="$var1$emp "
     done
}
echo "Employee Name is $var1"
echo "Date is $var2"
echo "Minimum of Salary is $var3"
echo "Maximum of Salary is $var4"
echo "Average of Salary is $var5"

Jean-Pierre.

radoulov · #7 (**permalink**) 01-30-2007

Do it all in the database, if possible.
If you _really_ have to mix sql/plsql and shell programming:

- as array in bash:

Code:

$ var1="($(printf "%s \n" "set pages 0 feed off" \
> "select ename from emp;"|sqlplus -s scott/tiger))"; \
> printf "The first element in \$var1 array is: %s, \
> the second: %s and so on ...\n" \
> "${var1[1]}" "${var1[2]}"
The first element in $var1 array is: ALLEN, the second: WARD and so on ...

- as a single variable:

Code:

$ var1="$(printf "%s \n" "set pages 0 feed off" \
> "select ename from emp;"|sqlplus -s scott/tiger)"; \
> echo "Quoted: $var1"; \
> echo "Unquoted:" $var1
Quoted: SMITH
ALLEN
WARD
JONES
MARTIN
BLAKE
CLARK
SCOTT
KING
TURNER
ADAMS
JAMES
FORD
MILLER
Unquoted: SMITH ALLEN WARD JONES MARTIN BLAKE CLARK SCOTT KING TURNER ADAMS JAMES FORD MILLER

I'm sure that it will be better
if you use only one programming language.

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