Hello and thanks in advance. I am running Oracle 11gR2 and want to try to execute an sql loader to insert data into an existing table. I am attempting this via Java stored proc in the database that will perform commands on the OS. The problem I am having is that I cannot seem to get the call to invoke SQLLDR.EXE to work - error I have is: sqlldr not found (NOTE that lookup with PATH isnt done due to the Oracle executable being SETUID)
----------------------Sample Code------------------------------------------
declare
l_ldr varchar2(1000) := '/u01/app/oracle/product/db/11.2.0.4/bin/sqlldr.exe control=C:\ad\controlfile.ctl, log=load.log, bad=load.bad,data=C:\somefile.txt';
l_env varchar2(1000) := 'PATH=/bin:/u01/oracle/db/11.2.0.4/jdk/bin;';
l_out varchar2(5000);
l_ret varchar2(5000);
begin
dbms_output.put_line(l_ldr);
MSO_Java.dbcmd('sqlldr.exe',
l_ldr,
l_env,
'Y',
l_out,
l_ret);
dbms_output.put_line(l_ret);
dbms_output.put_line(l_out);
end;
--------------------------END CODE SAMPLE--------------------
Appreciate ANY help here. I know this can be done.....
SQLLDR doesn't have the option to be executed in a PL/SQL, but you can simulate a SQLLDR with PL/SQL.
Yeap this is posible, I created a stored procedure that works fine just with REGEXP, now the documentation is in spanish but as soon that I can I will translate this.
Here is the link
Performence? Yeah I now that simulate a SQLLDR will be affect the performance in the database but NO, is this the reason that I used REGEXP. That works fine for me loading masive data.
Another thing is that this PL/SQL gives you the opportunity to transform the data. You can use a ETL for that but sometimes that is not possible :(.
THAT IS EASY TO UNDERSTAND :D!
Related
The test case is as follows:
CREATE OR REPLACE PROCEDURE TEST IS
BEGIN
APEX_JSON.OPEN_OBJECT();
APEX_JSON.CLOSE_OBJECT();
END;
I get a 500 error from ORDS running it from APEX's SQL Commands or SQL Scripts. I'm not sure if there's something else needed here or the recommendation is simply do not use APEX_JSON in procedures. I hope someone can chime in.
Just to clarify: I'm running this on an Oracle Cloud ATP instance, this seems to work fine in on-premise instances but not here.
EDIT 1
I had already tried something similar to Ergi Nushi's answer but to no avail. I even thought my code was wrong and tried his instead but it didn't work either (See screenshot below)
EDIT 2
So far what I have done to get my project going is to use the 12c JSON APIs instead like in:
-- ...
L_JSON := JSON_OBJECT(
KEY 'test' VALUE L_TEST_VALUE
NULL ON NULL
RETURNING VARCHAR2(32767)
);
-- ...
I know this is not the answer I was looking for but hopefully, it helps someone to get going.
First you need to initialize your APEX_JSON with:
APEX_JSON.initialize_clob_output();
After building your object you should get output with
APEX_JSON.get_clob_output();
and then free output in order to use it for other objects:
APEX_JSON.free_output();
Full code:
CREATE OR REPLACE PROCEDURE TEST IS
output CLOB;
BEGIN
APEX_JSON.initialize_clob_output();
APEX_JSON.OPEN_OBJECT();
APEX_JSON.CLOSE_OBJECT();
output := APEX_JSON.get_clob_output(); --> pass the output to a variable
APEX_JSON.free_output();
END;
I am working on a system where Oracle 11g is the back end database.
I have very limited permissions on the database and as such all I can do is call procedures that reside in packages.
Gerally, these procedure return their result set via an OUT parameter of type sys_refcursor.
I can call them fine in C# and get data from the cursor via the C# OracleDataset type.
Here is my question.
I want to be able to run these procedures and see the results via SQL Developer.
I can execute the procedure fine, but seeing the contents of the sys_refcursor OUT parameter is boggling me.
I've done some gooling and people ar saying about creating type and other solutions I simply do not have the permissions to persue.
So, how can I possibly see the result set contained in a sys_refcursor?
So say I have a procedure with this signature....
procedure an_oracle_Proc(p_ref IN varchar2,
p_result_set OUT sys_refcursor);
I call it like this....
DECLARE
l_ref VARCHAR2(10);
l_result_set sys_refcursor;
BEGIN
oracle_pkg.an_oracle_Proc(p_ref => l_ref,
p_result_set => l_result_set);
--How to select from l_result_set with limited permissions
END
How can I look at the contents of l_result_Set?
This is repeating the answer I linked to before really but specifically for your code:
VARIABLE result_set refcursor;
DECLARE
l_ref VARCHAR2(10);
BEGIN
l_ref := 'whatever';
oracle_pkg.an_oracle_Proc(p_ref => l_ref,
p_result_set => :result_set);
END;
/
PRINT result_set
... and run all of that as a script from an SQL Worksheet. The contents of the ref cursor will be shown in the script output window.
Thought I'd have another look and found this - amazing what stepping away from the computer can do. ;)
I just have to select the appropriate variable on the left pane.
http://www.thatjeffsmith.com/archive/2011/12/sql-developer-tip-viewing-refcursor-output/
Still - it would be nice to write my own SQL to do this rather than using the execute window.
Sys_refcursor form an anonymous block is bit tricky. Use the sql-developer, explore the package or procedure , right click and execute the procedure/package.
Sql-developer will open an input/output UI where you can key in values. And you can see the output on the same UI as well. Let me know if you need more details. I was actually debugging the same a couple of weeks back successfully.
I'm using SQL Oracle to build a stored procedure. I'm trying to build a stored procedure of the SQL-query below.And I want to return those data to a C# program.
select * from employee_master
I have tried following. Is this correct?
CREATE OR REPLACE PROCEDURE EMPLOYEE_SELECTALL (p_recordset OUTSYS_REFCURSOR)AS
BEGIN
OPEN p_recordset FOR
SELECT
*
FROM
EMPLOYEE_MASTER;
END EMPLOYEE_SELECTALL;
If you wish to build a stored procedure that return such resultset first of all you should check if you really need to do this. It's incidental and not recommended way for Oracle. But if you really need so, you should use REF CURSOR.
after executing your stored procedure in SQL Developer, it automatically brings back any output for you to view, including one or more ref cursors.
Example code and screenshots here
I am having a problem using host() command in oracle procedure.
I have written very simple oracle code.
CREATE OR REPLACE PROCEDURE
run_command(command_i IN VARCHAR2)
IS
l_message VARCHAR2 (100);
BEGIN
l_message := 'cmd ' || command_i;
host(l_message);
END run_command;
when host(l_message); is eliminated works fine.
Whats the problem and is there anyway to create a routine which uses host()?
The HOST command is only available in SQL*Plus and not from PL/SQL.
You can use Java stored procedure to call call OS commands. Oracle released a white paper on calling OS commands from within PL/SQL back in 2008 but there's plenty of other stuff out there (including Oracle Base, which is quite good)
Another clunky, but non-Java way would be to create DBMS_SCHEDULER ad-hoc EXECUTABLE job which is your HOST command (e.g. ls ), and then execute the job.
Note these run on the database server, not on your remote/local client.
Platform: Oracle
Language: PL/SQL
Issue: Want to output a procedure OUT cursor into the SQLDeveloper SQLWosksheet.
Anyone know how to use the Oracle "Select * from Table( PipelinedFunction( Param ) ) " to check procedure code output cursors?
I am using Crsytal Reports off of an Oracle stored procedure. Crystal requires that a procedure return a cursor, which it fetchs and reads.
The procedure code I have is currently working, but I want to find the easiest way to view the effects of changes to the procedure code. I have SQLDeveloper available, and I'm doing my creation and sql testing in that. I would like to get a quick result visible in the SQL Developer Query Result window ("SQL Worksheet").
Is there a (simple) way to use a Function to read the cursor from the procedure? (and pipe that out to the Table function?)
Convoluted, I know, but I deal best when I can just see the results of code changes. If I can view the record results directly, it will speed up development of the report.
I know of the Table function and a little about pipelining in Oracle. I know a little about cursors in general and sys_refcursor. I know diddly about types and why I need them. (Isn't sys_regCursor supposed to get us away from that?)
The current procedure does an adequate but ungraceful series of queries, inserts to global temp tables (GTT), joins from GTT and original tables, more inserts, and more self-joins and then SELECTS the results into the OUT cursor. I might be able to do better relying on just cursors and such, but the current method is good enough to get results to the report.
I think I can handle SQL pretty well (for our purposes), but I am not an Oracle-specific developer... but I need help.
Anybody run across this? The whole idea was to speed my development for the procedure code, but I've spent a couple of days looking for a way to just get at the output... not what I had in mind.
Update:
I have tried some hare-brained schemes based on slivers that I've seen on the web... such as
Create or replace FUNCTION GET_BACKPLANE (
Node VARCHAR2 ) RETURN SYS_REFCURSOR
AS
RESULTS SYS_REFCURSOR;
BEGIN
Open Results for
Select Backplane(Results, Node) from Dual ;
... etc.
and
Create or replace Function GET_BACKPLANE (
NODE VARCHAR2 ) RETURN My_Table_Stru%ROWTYPE PIPELINED
AS
BEGIN ...
I don't think that Oracle is even considering letting me re-reference the output cursor from the procedure ("Results" is a sys_refcursor that holds the results of the last SELECT in the procedure). I don't know how to define it, open it, and reference it from the procedure.
I never got to the place where I could try
SELECT * FROM TABLE(GET_BACKPLANE( ... etc )
Sorry for any typos and bad Oracle Grammar... it's been a long several days.
SQL Developer allows us to use SQL*Plus commands in the Worksheet. So all you need to do is define a variable to hold the output of the ref cursor.
I may have misinterpreted the actual code you want to run but I'm assuming your actual program is a procedure Backplane(Results, Node) where results is an OUT parameter of datatype sys_refcursor and node is some input parameter.
var rc refcursor
exec Backplane(results=>:rc, Node=>42)
print rc
The output of the print statement is written to the Script Output pane.
Note that the use of SQL*Plus commands means we have to use the Run Script option F5 rather than execute statement.
Thanks for the help. In the end, I wound up brute-force-ing it...
Step by step:
Make a query, test a query,
create a global temp table from the structure,
add code to make another query off of that GTT, test the query,
create a global temp table from the structure,
etc.
In the end, I wound up running (anonymous block) scripts and checking the GTT contents at every stage.
The last part was to use the same last query from the original procedure, stuffing everything into the Cursor that crystal likes...
tomorrow, I test that.
But, I'll just force it through for the next procedure, and get it done in a day and a half instead of 2+ weeks (embarrassed).
Thanks,
Marc