I want to pass a variable to a script which will execute a a sql script to read a table that contains env. variables. I want to read and then somehow export at unix level variables
example
for every row selected from the table build export command line
field1 := 'export SHELL = /app/pasf/sqr; ';
I some how need to get these back to unix korn script so I can create the variable at the unix level. It will be valid only while the session is open.
Not sure the best way to do this.
So far I created a the following(its just a start):
Code:
SET serveroutput ON
DECLARE
recordtype varchar2 (6) :='DBASE1';
SHELL VARCHAR2 (36);
SHELL1 VARCHAR2 (36);
SHELL2 VARCHAR2 (36);
PARMS VARCHAR2 (36);
SQR VARCHAR2 (31);
SQLq VARCHAR2 (36);
CTL VARCHAR2 (36);
TNS_ADMIN VARCHAR2 (44);
ORACLE_HOME1 VARCHAR2 (44);
PATH1 VARCHAR2 (30);
CURSOR XXX_cursor IS
SELECT PROGRAM_ID,STRING_ID,LABEL_ID,STRING_TEXT,COL_WIDTH from PS_XXX_ENV_VARS
WHERE PROGRAM_ID = recordtype;
XXX_VARS XXX_cursor%ROWTYPE;
BEGIN
IF NOT XXX_cursor%isopen THEN
OPEN XXX_cursor;
END IF;
LOOP
fetch XXX_cursor into XXX_VARS;
EXIT WHEN XXX_cursor%notfound;
SHELL2 := XXX_VARS.STRING_TEXT ;
SHELL1 := XXX_VARS.STRING_ID;
DBMS_OUTPUT.put_line (SHELL1);
EXIT WHEN XXX_cursor%notfound;
END LOOP;
CLOSE XXX_cursor ;
END;
output is
EXPORT PARMS= /unixsxxx/apps/psf/zzz/CCC/
EXPORT SHELL= /unixsxxx/apps/psf/zzz/CCC/
EXPORT SQL= /unixsxxx/apps/psf/zzz/CCCC/
EXPORT SQR= /unixsxx/apps/psf/zzz/
Last edited by TimHortons; 04-14-2009 at 08:50 AM..
Reason: code tag added
use UTL_FILE to open a file, write those script statements to the file, then close the file. For example call it /tmp/env.sh
Code:
# ........ sql code goes here in a here document
sqlplus -s username/password@somedbname <<EOF
SET serveroutput ON
DECLARE
recordtype varchar2 (6) :='DBASE1';
SHELL VARCHAR2 (36);
SHELL1 VARCHAR2 (36);
SHELL2 VARCHAR2 (36);
PARMS VARCHAR2 (36);
SQR VARCHAR2 (31);
SQLq VARCHAR2 (36);
CTL VARCHAR2 (36);
TNS_ADMIN VARCHAR2 (44);
ORACLE_HOME1 VARCHAR2 (44);
PATH1 VARCHAR2 (30);
FP UTL_FILE.FILE_TYPE;
CURSOR XXX_cursor IS
SELECT PROGRAM_ID,STRING_ID,LABEL_ID,STRING_TEXT,COL_WIDTH from PS_XXX_ENV_VARS
WHERE PROGRAM_ID = recordtype;
XXX_VARS XXX_cursor%ROWTYPE;
BEGIN
IF NOT XXX_cursor%isopen THEN
OPEN XXX_cursor;
END IF;
FP:=UTL_FILE.FOPEN('/TMP','ENV.SH','W');
LOOP
fetch XXX_cursor into XXX_VARS;
EXIT WHEN XXX_cursor%notfound;
SHELL2 := XXX_VARS.STRING_TEXT ;
SHELL1 := XXX_VARS.STRING_ID;
UTL_FILE.put_line (FP, SHELL1||'='||SHELL2);
END LOOP;
UTL_FILE.FCLOSE(FP);
CLOSE XXX_cursor ;
END;
exit
EOF
# set permissions on file:
chmod +x /tmp/env.sh
# source the shell script to bring env vars into this process
. /tmp/env.sh
Hey all thanks, I did some research and I found infor on UTIL_FILE. Quesion with regrads to this, Do I not need to add the directory I want to the UTIL_FILE_DIR in order to work?
ORA-29280: invalid directory path
ORA-06512: at "SYS.UTL_FILE", line 33
ORA-06512: at "SYS.UTL_FILE", line 436
ORA-06512: at line 30
Your idea was good but I cannot use UTL_file. I did code using this package, got it to work but discovered that I am running on one server and the output is automatically going to another server which we cannot have access to.
Would anyone have a different approach to returning multiple rows to the calling shell script to set environment variables.
To pass variable values to Oracle SQL you can embed ${} syntax in SQL code inlined as here document.
To retrieve data from a table you can select your values and put a separator in between (I often use a comma as separator); the rows are coming out from sqlplus standard output and you can capture and separate the values using the built in command read.
I can only say that this works with the korn shell; bash should be ok also.
Code:
#!/bin/ksh
# set here USER PASS DBNAME and MYVAR
$ORACLE_HOME/bin/sqlplus -s << SQLEND
set pagesize 0 feedback off tab off termout off
connect ${USER}/${PASS}@${DBNAME}
var myvar varchar2(99)
exec :myvar := '${MYVAR}';
select COL1||','||COL2||','||COL3
from TABLE
where COL1 = :myvar;
quit
SQLEND | IFS=',' while read col1 col2 col3; do
# do whatever you want with $col1 $col2 $col3
done
Perhaps I forgot to set some sqlplus variable besides pagesize and the others. The point is to make sqlplus to output only the table rows and nothing more.
Passing credentials to sqlplus directly on the command line allows everyone to learn the password if they can execute the ps command, therefore I prefer to use an explicit connect command inside the sql block.
:myvar is a bind variable. Using a bind variable instead of embedding ${MYVAR} directly into the query has an advantage, namely the query text does not change between successive executions of the sql section even if the value of MYVAR does change; this allows the Oracle optimizer to recognize that the query to be parsed is one that it has already seen and so it does not (hard) parse it again.
Of course if the query is guaranteed to output only one row -- or the rows are ordered (by order by! There are no other means to ensure a particular order) and you are interested only in the first row -- you can do without the while loop:
Code:
SQLEND | IFS=',' read col1 col2 col3
# do whatever you want with $col1 $col2 $col3
Another way to capture sqlplus output is to redirect it into a file, perhaps because the query output is already in a form that can be sourced by the shell:
Code:
select 'export '||COL2||'='||COL3
from TABLE
where COL1 = :myvar;
quit
SQLEND > /tmp/env$$
source /tmp/env$$
Or you can capture the whole output in a shell variable and then eval it:
Hello All,
Could you please help me if i am doing anything wrong in below script, especially the sqlplus part performance wise or anything else i could improvise in the script. Thank you.
#!/bin/ksh
## Batch Obj Id
MP_BCH_OBJ_ID=$1
PASS=$2
partition=$3
## script dir... (6 Replies)
Hi All,
we have requirement, i am created a shell script , inside i am connecting sqlplus and execute the query. below my code for your reference.
get_sqlid ()
{
sqlid=$(
sqlplus -s $PBDW_USERID/$PBDW_PW@$PBDW_SID <<EOF
DEFINE TBLNAME=$1
set feedback off
set serverout on size... (4 Replies)
I want to truncate a table using sqlplus where the table name is in shell variable:
I am using :
sqlplus -s / <<end
truncate table $TABLE
end (2 Replies)
Hi,
I am facing an issue wherein some temporary files (here docs) are getting created in /tmp and are not getting deleted automatically.
When i check the list of open files with below command i can see one file is getting appended continuously.(In this case /tmp/sfe7h.34p)
The output is... (4 Replies)
I want to execute a shell script from sqlplus prompt and get its output back to sqlplus. Is this possible?
if yes just give me an example for doing that. (2 Replies)
Hi,
I am facing the following error in calling the stored procedure from SQLPLUS in unix environment.
SQL> set serveroutput on
SQL> var store number;
SQL> exec test_proc(:store, 200);
BEGIN TEST_PROC(:store, 200); END;
*
ERROR at line 1:
ORA-01858: a non-numeric character was found... (8 Replies)
Hi,
I want to use sqlplus from server1
sqlplus usr1/pass1@dns1
and I want to connect to an Oracle database from a server2.
Unfortunately the database was created on the server1 and on server2.
So when I use the command just like that...it connects to the database from the server2. ... (2 Replies)
i'm not new to programming, but i AM new to unix scripting. here's my deal.
this works:
#!/bin/ksh
echo "HELLO"
/oracle_home/bin/sqlplus username/password@MYDB<<EOF
SELECT COUNT(*) FROM EMPLOYEES;
EOF
exit
echo "GOODBYE"
this doesn't:
#!/bin/ksh
echo "HELLO"
for x in 1 2... (4 Replies)
Hi all,
Iam facing a lot of problem while calling Oracle 10g SQLPLUS files from shell.
What is the standard procedures to be taken care.
Any help would be useful for me.
Thanks in advance,
Ganapati. (2 Replies)
Hi All,
I am executing the following code :-
sqlplus -s ${DATABASE_USER} |&
print -p -- 'set feed off pause off pages 0 head off veri off line 500'
print -p -- 'set term off time off serveroutput on size 1000000'
print -p -- "set sqlprompt ''"
print -p -- "SELECT run_command from... (2 Replies)
04-13-2009
calling sqlplus, read table return etc