System command execution from stored procedure

Hello World,
How to run System command from stored procedure ?
For example :
Delete a file
running a programm,
Is it possible ?
H.M

Years ago I did this by writing an output file with commands into a directory and had a cron job looking for this file. At the end of the run the file was removed.
Never checked if there are other possibilities nowadays.
cu
Andreas

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Shell script execution from stored procedure

I am working on a project thallt requires a shell script be executed upon the execution of a stored procedure with Oracle 10g. I have researched the matter, but there does not seem to be much out there on how to execute lines of UNIX commands by use of a stored procedure. If anybody has ever gotten this to work, any information would be appreciated. If the task is impossible, let me know, I just could not confirm that it was not something that could be done.

A combination of things can help you out here - none of which are easy or particularily secure.
1) From plain PL/SQL, you can call 'external procedures'. That is basically a DLL or .so that the listener can load on demand, and that external procedure (EXTPROC) can run whatever you need from the C program. C can, in turn, call a shell.
This is fairly well documented, but be aware that 1/2 of the info is in the PL/SQL docco and the other half in the Networking docco.
A fair bit of info is available in metalink as well - if you have access, simply search on extproc.
2) You can call a Java stored procedure which in turn has hooks to the outside world. That will probably require a PL/SQL to Java wrapper to make it available in your environment. Oracle has been using this one successfully for a while.
3) Write the script using UTL_FILE and have a daemon look for, and execute, the script.
4) Since you are using 10g, use the new job scheduler. It has excellent capability to interact with the OS, and it is available as a PL/SQL package (DBMS_SCHEDULER). I find the interface a bit heavy, but that could be wrapped by a library tailored to your specific needs.
Let us know what you decide to do in the end (and why) - it is an interesting topic.

How to execute Operating System commands from Stored procedure.

Any help on how to execute Operating System commands from stored procedures will be appreciated.
Nanditha.

Search the forums for 'External Procedure' and you will find example code that has been posted before.

Issue with Executing OS commands from Stored Procedure

I am trying to execute the scripts provided at :
http://github.com/xtender/XT_SHELL
provided by xtender user.
As required, I have asked my DBAs to grant privileges by executing the following scripts:
Begin
--change to needed permissions and execute
dbms_java.grant_permission( 'ODS', 'SYS:java.io.FilePermission', '/var/factiva/ODS/bin/CVIM_Rpt_ExportCSVFile’, 'read,write,execute' );
end;
/where CVIM_Rpt_ExportCSVFile is my script residing in the Unix server where my Oracle is installed.
The error I am facing when I try to execute the following command is:
select * from table(xt_shell.shell_exec('/var/scripts/CVIM_Rpt_ExportCSVFile',100))
Exception:the Permission (java.io.FilePermission /var/scripts/CVIM_Rpt_ExportCSVFile execute) has not been granted to ODS. The PL/SQL to grant this is dbms_java.grant_permission( 'ODS', 'SYS:java.io.FilePermission', '/var/scripts/CVIM_Rpt_ExportCSVFile', 'execute' )I have asked my DBA to also execute the following scripts: - But I still see the same error as above. I am not able to figure out whats going on. Can anyone pls help me out??
EXEC Dbms_Java.Grant_Permission('ODS', 'SYS:java.lang.RuntimePermission', 'writeFileDescriptor', '');
EXEC Dbms_Java.Grant_Permission(ODS', 'SYS:java.lang.RuntimePermission', 'readFileDescriptor', '');
dbms_java.grant_permission( 'ODS', 'SYS:java.io.FilePermission', '/var/scripts/CVIM_Rpt_ExportCSVFile', 'execute' )

DUPLICATE
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Issue with Executing OS commands from Stored Procedure
==============================================================

URGENT : Return Bulk data from Stored Procedure

Hi,
Tell me, how do I return a bulk of data which
does not exist in the data base
but is concluded while the Stored Procedure is executed
from the Stored procedure
to the C++ program.
For Example:
Table ABC
Field1 Field2 Field3
A 1 3
B 1 5
C 2 10
Table DEF
Field1 Field2 Field3
D 10 24
E 3 16
F 8 19
SP_TESTING
Depending on the values in both the tables
for some range of conditions,
a conclusion X is derived for each range value of the
condition range.
Now I need to return this bulk of data X with the
condition they belong to
back to the C++ code calling it....
NOTE : A stored procedure is requited as there is a lot
of processing
required before we conclude the result X for each value
in the condition range.
If I execute this code from C++ instead of Stored
procedure
it is very slow and speed is a prime requirement of my
system.
Also i'm not using any MFC class to access database.
I'm using ConnectionPtr, RecordsetPtr and _CommandPtr
from msado15.dll for database access...
One solution to this could be use of Temp tables.
As this process is used by a lot of different stored
procedures having a common
temp table to all will need something like 50 NUMERIC
fields, 50 VARCHAR fields
and so on, which doesn't seem like a very good solution
to this problem.
Sounds like something I would have done while in school,
implement a dumb solution.
So, please suggest me a solution as to how do I return
bulk data in the form
of recordsets from stored procedure.
Regards
Shruti

Use Out parameter mode
SQL> CREATE OR REPLACE procedure a1 (x OUT NUMBER, y OUT NUMBER) AS
2 BEGIN
3        x:= 1;
4        y:= 2;
5 END;
6 .
SQL> /
Procedure created.
SQL> SET SERVEROUTPUT ON
SQL> DECLARE
2   a NUMBER :=3;
3   b NUMBER :=4;
4 BEGIN
5   a1 (a,b);
6      DBMS_OUTPUT.PUT_LINE( 'a = ' || a );
7      dbms_output.put_line( 'b = ' || b );
8 END;
9 .
SQL> /
a = 1
b = 2
PL/SQL procedure successfully completed.By default parameters are copied to the OUT parameter mode .
COPY hint in PLSQL don’t send a pointer to calling program unit but NOCOPY
does.
Khurram

How to generate a report from stored procedure

I would like to generate a report from stored procedure.
I used to work on sql server. this can be done as easy as put a select statement at the end of stored procedure.
The resule can be displayed on the development IDE, like sql developer or consume by Java JDBC client.
is there equivalent way to do this in Oracle stored procedure?

Hi,
What type of report you are looking..for.. ??
As you said that "I used to work on sql server. this can be done as easy as put a select statement at the end of stored procedure. "
When you execute it will return the result set and you will display directly on the FrontEnd.. Is my Understanding is correct Up to here.
See, In oracle you have call some custom stored procedures as you did in SQL Sever, but you have return the Results Sets, with help of Out put paramter, Either Cursors or Varrays..
or Else you can generate the Html reports based on your requirement, HTML can be used in the stored procedures of Oracle which will generate for your, you need to code it.
I could not able get the relevant link for your reference.
I will get back to you on this.
- Pavan Kumar N

Problem with execute SSIS package from stored procedure

Hi,
I would like to execute SSIS package from stored procedure. Therefore, I implemented sp which exec SSISDB.CATALOG.CREATE_EXECUTION method. When I try to test it from SSMS on remote server, I got error that
I was able to solve by adding “WITH EXECUTE AS …”. Then I got another error: The server principal "Domain\user" is not able to access the database "SSISDB" under the current security context. On Internet, I found a couple post that describe
how to access SSIS catalog (one of them by Ke Yang -
http://blogs.msdn.com/b/mattm/archive/2012/03/20/ssis-catalog-access-control-tips.aspx). It didn’t help. I’m still getting the error message.
How to debug this issue?
Any suggestion?
Thanks
SQL Server 2014 BI

SSMS does not propagate user credentials thus the error
Arthur
MyBlog
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Calling DTS package from Stored Procedure

I am getting error calling DTS package from CF.
So i want to call DTS package from SQL Server Stored
Procedure.
DTS package create text file. So no need of input or output
parameter.
What is the syntax?.
thanks for ur help.

Ted Kruger explains how this can be done in his blog post
Run SSIS Package from Stored Procedure
For every expert, there is an equal and opposite expert. - Becker's Law
My blog

Best method to transfer large strings (XML data) to/from stored procedure

Hi!
I'm trying to call a PL/SQL procedure from Java. The procedure inputs a string (XML) that is parsed, and returns a result string (also XML).
Typical size of the string is 5kb -> 1mb.
I can see two possible solutions:
1) String / LONG
2) CLOB (Using DMBS_LOB.createTemporary and getting a CLOB locator and passing the locator to the stored procedure)
Does anyone have other suggestions?
What is the fastest method for transferring XML structures from to and from stored procedures?
Anders

Anders,
I would say it depends on your requirement. Both the methods have some advantages and disadvantages.
Using a CLOB means that you have to use vendor specific libraries but this is more extendible and I fast too.
Using String/Long will be more portable in the long run but again you lose on speed/performance.
Just a doubt of mine... If I got it correct, you are transforming one XML to another XML based on some conditions. Why dont you use XSL and XSL StyleSheet Processor packaged with XDK for this? I think this would be the fastest way.
Hope this helps.

Returning rowcount and resultset from stored procedure

Hello,
In SQL Server you can return multiple resultsets from stored procedure by simple SELECT statement. But in Oracle, you have to use SYS_REFCURSOR.
Sample code:
CREATE OR REPLACE PROCEDURE sp_resultset_test IS
t_recordset OUT SYS_REFCURSOR
BEGIN
OPEN t_recordset FOR
SELECT * FROM EMPLOYEE;
END sp_resultset_test;
Is there any other way in Oracle 10 or 11 ?
Thank You.

What is the requirement? Oracle is far more flexible than SQL-Server... with numerous features that do not exist in SQL-Server. (Fact)
One of the biggest mistakes you can make is to treat Oracle like SQL-Server... trying to match feature A1 in SQL-Server to feature B3 in Oracle.
Does not work that way.. rather then stick to SQL-Server as SQL-Server does SQL-Server specific features far better than Oracle.
So instead of trying to map what a T-SQL stored proc to do to an Oracle ref cursor (even to the extent of using that very silly sp_ prefix to name the proc), tell us the problem and requirements... That way we can tell you what Oracle features and options are best used to solve that problem - instead of competing in some unknown feature comparison event with SQL-Server.

Ora-06550 returning data from Stored Procedure and Entity Data Model

Hi.
I'm creating an application that uses a WCF Service to return data. I also created a proyect with the EDMX design and mapped most of my DBModel to a classes context. I have added some of the procedures as well. One of them receive some parameters and return a Sys_RefCursor, that is populated according to the parameters.
I have declared the "<add >" tags in the Web.Config and imported the function of the Procedure. When I call the Asyncronous function I get different exceptions:
1. If I call the function, with all of the parameters i get:
Oracle.DataAccess.Client.OracleException: ORA-06550: línea 1, columna 8:
PLS-00306: número o tipos de argumentos erróneos al llamar a
'SP_HECHOSJURITER'
ORA-06550: línea 1, columna 8:
(wrong number or types of arguments in call to 'SP_HECHOSJURITER')
2. If i just set 1 parameter in the SP, returning the same type of data, I get:
Error al recibir la respuesta HTTP a
http://localhost/Procalculo.CGFM.SIGOC.DatosServices/ServiceDatos.svc.
(failed to receive http response. error 12152)
3. If I don't set any parameters in the procedure, it works fine, and return correct data.
It exclusively happen with one entity.
Any clue?
I appreciate any help.

When you return result sets from stored procedures to Entity Framework, you are very likely using implicit result sets. Implicit result sets don't need to be declared as a parameter in code, only in the <add> tags to define the metadata in the .NET config file.
For example, in the EF Oracle By Example, you'll see that the stored procedure in the function import has three parameters, but only two are declared in the code. The third one was defined in the config file.
http://download.oracle.com/oll/obe/EntityFrameworkOBE/EntityFrameworkOBE.htm

Returning SQL cursor from Stored Procedure

Hi,
I have a query regarding returning sql cursor from stored procedure to java in oracle 11g.
I want to query some data ex: my query returns A, B, C. Also, now I want to query some other data ex: D, E, F. Now I want to return this data as an sql cursor as a single row . Example: A,B,C,D,E,F. Is it possible to return/create a cursor in stored procedure?
assume both query returns equal number of rows.. however both are not related to each other..

RP wrote:
Hi,
I have a query regarding returning sql cursor from stored procedure to java in oracle 11g.
I want to query some data ex: my query returns A, B, C. Also, now I want to query some other data ex: D, E, F. Now I want to return this data as an sql cursor as a single row . Example: A,B,C,D,E,F. Is it possible to return/create a cursor in stored procedure?
assume both query returns equal number of rows.. however both are not related to each other..It sounds like what you need is a ref cursor.
First thing to remember though is that cursors do not hold any data (see: {thread:id=886365})
In it's simplest form you would be creating a procedure along these lines...
SQL> create or replace procedure get_data(p_sql in varchar2, p_rc out sys_refcursor) is
2 begin
3    open p_rc for p_sql;
4 end;
5 /
Procedure created.
SQL> var rc refcursor;
SQL> exec get_data('select empno, ename, deptno from emp', :rc);
PL/SQL procedure successfully completed.
SQL> print rc;
     EMPNO ENAME          DEPTNO
      7369 SMITH              20
      7499 ALLEN              30
      7521 WARD               30
      7566 JONES              20
      7654 MARTIN             30
      7698 BLAKE              30
      7782 CLARK              10
      7788 SCOTT              20
      7839 KING               10
      7844 TURNER             30
      7876 ADAMS              20
      7900 JAMES              30
      7902 FORD               20
      7934 MILLER             10
14 rows selected.
SQL> exec get_data('select deptno, dname from dept', :rc);
PL/SQL procedure successfully completed.
SQL> print rc
    DEPTNO DNAME
        10 ACCOUNTING
        20 RESEARCH
        30 SALES
        40 OPERATIONS
        50 IT SUPPORTWhich takes an SQL statement (as you said that both your queries were unrelated), and returns a ref cursor, and then your Java code would fetch the data using that cursor.
Now, as for getting your rows to columns and combining two queries that do that... something along these lines...
SQL> select * from x;
C
A
B
C
SQL> select * from y;
C
D
E
F
SQL> ed
Wrote file afiedt.buf
1 select x.col1, x.col2, x.col3
2        ,y.col1 as col4
3        ,y.col2 as col5
4        ,y.col3 as col6
5 from (
6        select max(decode(rn,1,col1)) as col1
7              ,max(decode(rn,2,col1)) as col2
8              ,max(decode(rn,3,col1)) as col3
9        from (select col1, rownum rn from (select * from x order by col1))
10       ) x
11 cross join
12       (
13        select max(decode(rn,1,col1)) as col1
14              ,max(decode(rn,2,col1)) as col2
15              ,max(decode(rn,3,col1)) as col3
16        from (select col1, rownum rn from (select * from y order by col1))
17*      ) y
SQL> /
C C C C C C
A B C D E F... will do what you ask. For further information about turning rows to columns read the FAQ: {message:id=9360005}

Triggers accepting parametes from stored procedures

Can triggers accept parameters from stored procedures like some filename or column name of a table and pass them to external c procedures.If so I would greatly appreciate if any one could provide me with an example.
P.S The trigger is on a view and the view which in turn should be created in the stored procedure.
Thanks
Harini

Hello,
Yes you can invoke Web Services from the database, it is often called "Database Web Service call out" and it is documented in the Web Services Developer Guide
Regards
Tugdual Grall

Executing a Operating System command from Stored Procedure ??

I want to execute a Operating System command from a PL/SQL Stored Procedure, can anyone suggest me how can I do this ??
I am on Sun-Solaris with Oracle 8.1.7 database.
Please do email me at [email protected]
Thanks in Advance,
Ramesh L.

Are you using a webserver? If so, you could make your operating system script into a CGI program, then execute it from pl/sql using utl_http.request.

Executing SQLPLUS command from Stored Procedure

Hi,
I am trying to execute the SQLPLUS command (CONNECT) from the stored procedure.
It is throwing below error message.
Stored Procedure:
SQL> select user from dual
2 ;
USER
SYS
SQL> create or replace
2 PROCEDURE PROCEDURE1 AS
3 BEGIN
4 sqlplus sys/sys@D as sysdba;
5 --execute immediate 'create user 'kkk' identified by 'kkk';
6 END PROCEDURE1;
7 /
Warning: Procedure created with compilation errors.
SQL> show err
Errors for PROCEDURE PROCEDURE1:
LINE/COL ERROR
3/9 PLS-00103: Encountered the symbol "SYS" when expecting one of the
following:
:= . ( @ % ;
The symbol ":=" was substituted for "SYS" to continue.
3/22 PLS-00103: Encountered the symbol "AS" when expecting one of the
following:
. ( * @ & = - + ; < / > at in is mod remainder not rem
<an exponent (**)> <> or != or ~= >= <= <> and or like LIKE2_
LIKE4_ LIKEC_ between || member SUBMULTISET_
The symbol ". was inserted before "AS" to continue.
Please let me know whether it is possible to do or not.
If there is possiblility how can does this be done?
Edited by: NGK246 on Aug 28, 2012 2:21 AM

NGK246 wrote:
Hi,
I am trying to execute the SQLPLUS command (CONNECT) from the stored procedure.
It is throwing below error message.
It would not. It will always throw an error. SQLPLUS is a Utility and not a Command/Construct, that it would be available for a Stored Procedure
>
SQL> select user from dual
2 ;
USER
SYSWhich Database are you onto? Is it DMIP?
SQL> create or replace
2 PROCEDURE PROCEDURE1 AS
3 BEGIN
4 sqlplus sys/sys@DMIP as sysdba;
5 --execute immediate 'create user 'kkk' identified by 'kkk';
6 END PROCEDURE1;
7 /
Warning: Procedure created with compilation errors.
SQL> show err
Errors for PROCEDURE PROCEDURE1:
LINE/COL ERROR
3/9 PLS-00103: Encountered the symbol "SYS" when expecting one of the
following:
:= . ( @ % ;
The symbol ":=" was substituted for "SYS" to continue.
3/22 PLS-00103: Encountered the symbol "AS" when expecting one of the
following:
. ( * @ & = - + ; < / > at in is mod remainder not rem
<an exponent (**)> <> or != or ~= >= <= <> and or like LIKE2_
LIKE4_ LIKEC_ between || member SUBMULTISET_
The symbol ". was inserted before "AS" to continue.
Please let me know whether it is possible to do or not.
If there is possiblility how can does this be done?If you are at DMIP, you need not Login again. You can Login Manually to the Database and Execute the Procedure (in which you intend to create a User 'kkk').
However, if you are trying to Create a User in a Different Database, You will first require a DB Link to exist to connect to the Remote Database. You will also require Explicit privileges to create any user (Although I am not sure if you can create User onto a different Database.)
I would like to ask you, why are you creating a User on a Remote database? Can you not execute the same procedure on the Remote database and create User? Also, you are using SYS login to perform the activity. Ideally it should not be allowed. You must create a user and grant DBA rights to perform such activities.

System command execution from stored procedure

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