Pass 2D array from java to PLSQL

HI,
My requirement is that I have to pass dynamic parameters to be stored in a table. The table I have is
CODE || TAG_LABEL         || TAG_COLMN_NAME
023 || Registration            || CHAR_TAG1
023 || Agreement Number || NUM_TAG1
023 || Agency                  || NUM_TAG2
023 || Start Date              || DATE_TAG1
this table A. gives me the list of all possible parametes
CODE || CHAR_TAG1 || CHAR_TAG2 || NUM_TAG1 || NUM_TAG2 .. ..
023 || 420/09 || -- || 100023 || 1002
021 || -- || 400030 || -- || --
023 || 450/10 || -- || 100025 || --
this table B gives the place where the values for this parameter has to be stored.So for code 023 if I have parameters say Registration='240/10' and start_date = '10/02/2010' then, how do I pass these dynamic paramters to the plsql and from there how do i handle storing this in my final Table B.
I searched the net for Dynamic sql and I am very basic in PLSQLs. Can anyone please help or atleast if there is a documentation that does exactly this, it would be very helpful.
Thanks
Rache

From the pl/sql side you need to create your object types
create or replace type sample_array_obj
as object( firstitem varchar2(20 char),
seconditem varchar2(10 char)
create or replace
type sample_array_type is table of sample_array_objand then you need to grant execute access on both the object and type
grant execute on sample_array_obj to public;
grant execute on sample_array_type to public;you have to declare these to java then. (I'm not a java programmer, but the java then has to get its collection type from the database)

Similar Messages

Example of passing String Array from java to C using JNI

hi all
i searched net for passing string array from java to C but i dont get anything relevent
i have
class stu
int rollno
string name
String [] sub
i want to pass all as String array from java to C and access it C side

1. Code it as though it were being passed to another method written in java.
2. Redefine the method implementation to say "native".
3. Run jnih to generate a C ".h" file. You will see that the string array
is passed into C as a jobject, which can be cast to a JNI array.
4. Write the C code to implement the method and meet the interface
in the generated .h file.

Passing an array from Java to Pl/SQL Procdures

I am relatively new to the Java world and I am unable to pass back an array from Java back to the calling PL/SQL procedure. I have read many of the posts that deal with this issue and in specificly have viewed Ask Tom. My main issue is trying to get the data types matched up. I am able to return varchar2, numbers, and the like, but an array of filenames is not happening. I have tried a variety of "types" but unable to accomplish the task. Please help.
I have my Java class basically defined as:
public static oracle.sql.ARRAY[] getCollection(String directory)
throws SQLException
{ // provide a directory and get a listing of files
File path = new File( directory );
String[] list = path.list();
return list;
SQL Type and PL/SQL Procedure is:
CREATE OR REPLACE TYPE PTO_FILE IS TABLE OF VARCHAR2(100);
create or replace function get_dir_collection( p_directory in varchar2 ) RETURN PTO_FILE
as language java
name 'DirCollection.getCollection( java.lang.String ) return oracle.sql.ARRAY[]';
/

I know that it is not an ARRAY. It is however an "array" and I am attempting to map Java's String[][ to some "object" on the oracle side. I have looked at the link you sited and was not able to find the data mapping. I have found that mapping data types between different "languages" is some of the most difficult aspects of working with multiple languages.
Any suggestions? Thanks

Passing String Array from Java to PL/SQL

Hi,
We are having couple of packages which have been written in PL/SQL . I would like to know how i can send arrays as input parameters from Java to any stored proc in Oracle. I am having Oracle 8i as the DB and am using Websphere RSA for deployment purposes.
please find below Java , PL/SQL code and exception
PL/SQL Code :
PACKAGE PKG_SURCHARGE
IS
TYPE commodity_key IS TABLE OF VARCHAR2(500) INDEX BY BINARY_INTEGER;
PROCEDURE RETRIEVE_CHARGES
in_Commodity_tab IN commodity_key,
IS
BEGIN
dbms_output.put_line('in_Commodity_tab(' || '0' || ') : ' || in_Commodity_tab(0) );
Java Code :
CallableStatement cstmt=null;
Connection conn=null;
try{
conn=getConnection();
System.out.println("++++++connected");
String sqlStr = "{call Pkg_Surcharge.RETRIEVE_CHARGES(?) }";
cstmt = conn.prepareCall(sqlStr );
//1.
String[] javaArray={"20081117","20081117"};
ArrayDescriptor dateDescripter = ArrayDescriptor.createDescriptor( "commodity_key", conn );
oracle.sql.ARRAY dateArray = new oracle.sql.ARRAY(dateDescripter, conn, javaArray);
System.out.println("++++++registered-1");
Catch (Exception e){
e.printStackTrace();
Exception Occured:
java.sql.SQLException: Invalid Pattern Name <Schema Name>.commodity_key
Appreciate your help in this regard
Thanks
Srini
Edited by: [email protected] on Nov 25, 2008 4:55 AM

Avi is correct. You must create a varray or nested table instead of using a PL/SQL index-by table.
SQL> create type commodity_key as varray(#) of varchar2(500);
or
SQL> create type commodity_key as table of varchar2(500);
Use the varray if you know the number of items in the array. Otherwise, use the nested table.

How to Pass String array from Java to PL/SQL and this use in CURSOR

hi,
I cant understand how to pass Array String as Input Parameter to the Procedure and this array use in Cursor for where condition like where SYMPTOM in( ** Array String **).
This array containing like (SYMPTOM ) to be returned from the java to the
pl/sql (I am not querying the database to retrieve the information).
I cannot find an example on this. I will give the PL/SQL block
create or replace procedure DISEASE_DTL<*** String Array ***> as
v_SYMPTOM number(5);
CURSOR C1 is
select distinct a.DISEASE_NAME from SYMPTOM_DISEASE_RD a
where ltrim(rtrim(a.SYMPTOM)) in ('Fever','COUGH','Headache','Rash') ------- ***** Here use this array element(like n1,n2,n3,n4,n5..) ******
group by a.DISEASE_NAME having count(a.DISEASE_NAME) > 3 ----------- ***** 3 is no of array element - 1 (i.e( n - 1))*****
order by a.DISEASE_NAME ;
begin
for C1rec IN C1 loop
select count(distinct(A.SYMPTOM)) into v_SYMPTOM from SYMPTOM_DISEASE_RD a where A.DISEASE_NAME = C1rec.DISEASE_NAME;
insert into TEMP_DISEASE_DTLS_SYMPTOM_RD
values (SL_ID_SEQ.nextval,
C1rec.DISEASE_NAME,
(4/v_SYMPTOM), --------**** 4 is no of array element (n)************
(1-(4/v_SYMPTOM)));
end loop;
commit;
end DISEASE_DTL;
Please give the proper solution and step ..
Thanking you,
Asish

I've haven't properly read through your code but here's an artificial example based on a sql collection of object types - you don't need that, you just need a type table of varchar2 rather than a type table of oracle object type:
http://orastory.wordpress.com/2007/05/01/upscaling-your-jdbc-app/

Passing Tables back from Java Stored Procedures

Thomas Kyte has written (in reference to
trying to pass an array back from a stored
function call):
You can do one of two things (and both require the use of
objects). You cannot use PLSQL table types as JDBC cannot bind to
this type -- we must use OBJECT Types.
[snip]
Another way is to use a result set and "select * from
plsql_function". It could look like this:
ops$tkyte@8i> create or replace type myTableType as table of
varchar2 (64);
2 /
Type created.
ops$tkyte@8i>
ops$tkyte@8i>
ops$tkyte@8i> create or replace
2 function demo_proc2( p_rows_to_make_up in number )
3 return myTableType
4 as
5 l_data myTableType := myTableType();
6 begin
7 for i in 1 .. p_rows_to_make_up
8 loop
9 l_data.extend;
10 l_data(i) := 'Made up row ' | | i;
11 end loop;
12 return l_data;
13 end;
14 /
Function created.
ops$tkyte@8i>
ops$tkyte@8i> select *
2 from the ( select cast( demo_proc2(5) as mytableType )
3 from dual );
COLUMN_VALUE
Made up row 1
Made up row 2
Made up row 3
Made up row 4 [Image]
Made up row 5
So, your JDBC program would just run the query to get the data.
If the function "demo_proc2" cannot be called from SQL for
whatever reason (eg: it calls an impure function in another piece
of code or it itself tries to modify the database via an insert
or whatever), you'll just make a package like:
ops$tkyte@8i> create or replace package my_pkg
2 as
3
4 procedure Make_up_the_data( p_rows_to_make_up in
number ); 5 function Get_The_Data return myTableType;
6 end;
7 /
Package created.
ops$tkyte@8i>
ops$tkyte@8i> create or replace package body my_pkg
2 as
3
4 g_data myTableType;
5
6 procedure Make_up_the_data( p_rows_to_make_up in number )
7 as
8 begin
9 g_data := myTableType();
10 for i in 1 .. p_rows_to_make_up
11 loop
12 g_data.extend;
13 g_data(i) := 'Made up row ' | | i;
14 end loop;
15 end;
16
17
18 function get_the_data return myTableType
19 is
20 begin
21 return g_data;
22 end;
23
24 end;
25 /
Package body created.
ops$tkyte@8i>
ops$tkyte@8i> exec my_pkg.make_up_the_data( 3 );
PL/SQL procedure successfully completed.
ops$tkyte@8i>
ops$tkyte@8i> select *
2 from the ( select cast( my_pkg.get_the_data as mytableType
) 3 from dual );
COLUMN_VALUE
Made up row 1
Made up row 2
Made up row 3
And you'll call the procedure followed by a query to get the
data...
I have tried this, and it works perfectly.
My question, is what does the wrapper look
like if the stored function is written
in java instead of PL/SQL? My experiments
with putting the function in java have been
dismal failures. (I supposed I should also
ask how the java stored procedure might
look also, as I suppose that could be where
I have been having a problem)
null

Thanks for the response Avi, but I think I need to clarify my question. The articles referenced in your link tended to describe using PL/SQL ref cursors in Java stored procedures and also the desire to pass ref cursors from Java to PL/SQL programs. Unfortunately, what I am looking to do is the opposite.
We currently have several Java stored procedures that are accessed via select statements that have become a performance bottleneck in our system. Originally the business requirements were such that only a small number of rows were ever selected and passed into the Java stored procedures. Well, business requirements have changed and now thousands and potentially tens of thousands of rows can be passed in. We benchmarked Java stored procedures vs. PL/SQL stored procedures being accessed via a select statement and PL/SQL had far better performance and scaleable. So, our thought is by decouple the persistence logic into PL/SQL and keeping the business logic in Java stored procedures we can increase performance without having to do a major rewrite of the existing code. This leads to the current problem.
What we currently do is select into a Java stored procedure which has many database access calls. What we would like to do is select against a PL/SQL stored procedure to aggregate the data and then pass that data via a ref cursor (or whatever structure is acceptable) to a Java stored procedure. This would save us a significant amount of work since the current Java stored procedures would simple need to be changed to not make database calls since the data would be handed to them.
Is there a way to send a ref cursor from PL/SQL as an input parameter to a Java stored procedure? My call would potentially look like this:
SELECT java_stored_proc(pl/sql_stored_proc(col_id))
FROM table_of_5000_rows;
Sorry for the lengthy post.

Passing an array from one method to another

I am passing an array from my "load" method and passing it to be displayed in my "display" method in an applet .
I made the array a class variable (to be able to pass it to the "display" method).
The applet runs, but nothing seems to be in the array.The screen says applet started, but nothing else. There does not seem to be any CPU activity.
Trying to debug this, I have tried to paint the screen during the array build. I never figured out how to do this. So I made this a non applet class, put it in debug, and the array seems to load okay.
Any help is appreciated.
This is the applet code:
import java.applet.Applet;
import java.awt.*;
import java.io.*;
import java.util.*;
import java.net.*;
public class urla extends java.applet.Applet
int par1;
int i = 1;
int j = 20;
int m = 0;
int k = 0;
String arr[] = new String[1000];
String inputLine;
    public void load() throws Exception
      try
        URL mysite = new URL("http://www.xxxxxxxxxxxxxx.html");
       URLConnection ms = mysite.openConnection();
       BufferedReader in = new BufferedReader(
       new InputStreamReader(
       ms.getInputStream()));
         while ((inputLine = in.readLine()) != null)
           arr[m] = inputLine;
           m++;
       in.close();
      catch (MalformedURLException e)
        k++;
    public void display(Graphics screen)
      screen.drawString("THE FOLLOWING HAVE ADDED THEIR BIOS:",5 ,5);
      for (int i = 0; i < 20; i++);
        j = j + 20;
        screen.drawString("output - "
        + arr, 5, j);
        repaint() ;
}

String arr[] = new String[1000];is this typing mistake????? because if u did it in
program as well i don think it will work.. the tag is
innnside array lenght... hope iam saying this right!!no, he had the bold form tags (b and /b inside square brackets) in his previous non-code tagged post. He carried it over to this post and they caused an error. I highly doubt that they were in his actual program. Just delete them.
Message was edited by:
petes1234

Passing a String from Java to Javascript

Does anybody know how to pass a string from Java class to Javascript ? Can it be done?

If you are talking in terms of web terminology...
People do intialization of page in the following way.
var java_script_variable = <%=String_variable%>

Pass 2D array from LabVIEW to C# problem

Hi , I have made a dll using .net assembly to use my labview code in c# . I can easily pass string , numerical and 1D arrays from labview to c# and vice versa, but when I want to read back 2D U16 array from Labview in c# I get the following exception although they have exactly the same type (ushort)
Cannot widen from source type to target type either because the source type is a not a primitive type or the conversion cannot be accomplished.
Could you please let me know how should I pass 2d array from labview to c#
Thanks

If all else fails, you could pass n 1D arrays across and then put the original 2D array back together. That's probably how the computer would do it behind the scenes, anyway.
Cameron
To err is human, but to really foul it up requires a computer.
The optimist believes we are in the best of all possible worlds - the pessimist fears this is true.
Profanity is the one language all programmers know best.
An expert is someone who has made all the possible mistakes.
To learn something about LabVIEW at no extra cost, work the online LabVIEW tutorial(s):
LabVIEW Unit 1 - Getting Started
Learn to Use LabVIEW with MyDAQ

Passing an array from one jsp page to another.

I need to pass an array from one page to another, without using the query string.
Can anyone help?
I was given one suggestion about putting the array inside a Map object, then putting the map in the session.
Is there an alternative? i am struggling to find out how to use maps properly.
Alternatively, could someone give me a pointer on how to implement this possibility?
Help needed ASAP.
Thankyou

First.jsp
String[] str = {1,2,3,4,5};
session = request.getSession(true);
session.setAttribute("str",str); //or application.setAttribute("str",str);
Second.jsp
session = request.getSession();
String str[] = (String[])session.getAttribute("str"); //or String str[] = (String[]) application.getAttribute("str");
Now you can use str[].
Sudha

Passing array from java stored procedure to plsql

I have a java store procedure that is parsing an xml document and returning element values to my plsql application(8.1.7). I'm mapping a java.lang.String return type to VARCHAR2. However I'm running into the 4k limit when trying to return a string from java that is over 4k. Truncation of varchar returning over 4k is a known issue in 8i.
So my next idea was to split that value of the element into 2000char and put in an array then pass that back to the plsql procedure. I know that oracle.sql.ARRAY can be converted into a plsql TABLE. But I believe you can only use the oracle.sql.ARRAY type when you are doing jdbc programming and are working with a connection.
SO FINALLY MY QUESTION IS...
Can anyone think of a solution that will allow me to pass over 4k of character data from my java stored procedure (not jdbc), back to my plsql app?
Thanks.

My understanding is that oracle 8 has a 4k limitation on any plsql function return data. A varchar can hold 32k within a function/package, but it cannot return more than 4k outside it's scope.
Do you have an example you could share where you use the clob as a return type?
Thanks!

Need help on passing an array to java routine from PL/SQL

I got a math routine in java and the idea is have an array of integer and the java routine does some computatoin and then pass the array back to pl/sql
and I google the web most code is calling pl/sql from java but not the other way round. any help will be really appreciated.
{code}
package tst;
import java.util.*;
public class plsql3 {
        private final static int factor1 = 2;
        public static void getFib2(int[] in, int[] out, int k){
                        for (int i=0;i<=k-1;i++){
                out[i]= in[i] * factor1;
public static void main(String[] arg){
     int[] in2 = {1,2,3,4,5};
     int[] out2= {0,0,0,0,0};
     getFib2(in2,out2,2);
     for ( int j = 0 ; j <= out2.length-1;j++) {
                System.out.println(out2[j]);
{code}
{code}
CREATE or replace PROCEDURE getfib5 (x IN OUT numlist, y IN OUT numlist, k in number)
AS LANGUAGE JAVA
NAME 'tst.plsql3.getFib2(int[], int[],int)';
set serveroutput on format wraped;
declare
in2 numlist := numlist(1,2,3,4,5,6);
out2 numlist := numlist(0,0,0,0,0,0);
begin
--in2(0) := 1;
--in2(1) := 2;
--in2(2) := 3 ;
for i in 1..in2.count
loop
    dbms_output.put_line(in2(i));
end loop;
   for i in 1..in2.count
loop
    dbms_output.put_line(out2(i));
end loop;
getFib5(in2,out2,2);
for i in 1..in2.count
loop
    dbms_output.put_line(in2(i));
end loop;
   for i in 1..in2.count
loop
    dbms_output.put_line(out2(i));
end loop;
--dbms_output.put_line(in2.count);
end;
{code}
{code}
javac -source 1.5 -target 1.5 tst/plsql3.java
{code}
Error report:
ORA-00932: inconsistent datatypes: expected a value at argument position 1 that is convertible to a Java int got an Oracle named TYPE (ADT, REF etc)
ORA-06512: at "TK1.GETFIB5", line 1
ORA-06512: at line 18
00932. 00000 - "inconsistent datatypes: expected %s got %s"
*Cause:
*Action:

http://asktom.oracle.com/pls/asktom/f?p=100:11:::::P11_QUESTION_ID:3696816290928

Pass a Collection of multi-column records from JAVA to Plsql

Hi,
I need to pass a Collection of multi-column records(say Employee Id, Employee Name and Employee Address) from a JAVA application to an Oracle package/stored procedure
for data processing and updates.
I initially thought of using a pl/sql table as an input parameter, but then I came to know that a pl/sql table can have ONLY one column and an index (can be a String in
the case of an Associative Array). Please let me know if my understanding is wrong here.
I then thought of using a PL/SQL table with a RECORD type as an element. But, I came across a documentation that says that, Oracle JDBC does not support RAW, DATE, and PL/SQL RECORD as element types.
Could you please let me know how I can pass multi-column records from JAVA to an Oracle Stored procedure as an input parameter? Millions of rows would be sent by the JAVA program to the Oracle Stored procedure.
Any help will be highly appreciated.
Regards,
Sunil.

There are several examples in the " Working with Oracle Collections" from the "JDBC Developer's Guide and Reference". You can either use a Map to create Java objects that are created with the Oracle objects data or the generic oracle.sql.STRUCT interface.
http://download-west.oracle.com/docs/cd/B10501_01/java.920/a96654/oraarr.htm#1047581
http://download-west.oracle.com/docs/cd/B10501_01/java.920/a96654/oraoot.htm#1039477

Pass arrays from Java to PL/SQL procedure.

Hi All,
Can some body give an example, where an array of strings is passed from java to a PL/SQL procedure.
Any help in this regard is appreciated.
Thanks,
Prashant

Kiran Kumar Gunda wrote:
I would want to use Oracle provided (Oracle Extensions) API to pass arrays to PL/SQL
procedure from Java. I am using weblogic connection pool, but the 'createDescriptor'
method donot allow Pooled connection. So I have taken Physical Connection by casting
to 'WLConnection'. Now, weblogic strongly suggest NOT to use this,as pooling capabilities
will be disabled.
But by setting RemoveInfectedConnectionsEnabled to false, we can ask weblogic
to return the Physical Connection to Pool. I have tested this with the attached
code. I DON'T find any issue.Good. The only real risk to obtaining the physical connection is retaining and
using it beyond the current thread execution. Your code looks OK. The only thing
I'd suggest is to add to the finally block. I would put a separate try-catch-ignore
block around every action in the finally, so if one fails, the others are still
done.
As long as you're writing good JDBC like that, there is no risk to telling the
pool to trust the code, by setting RemoveInfectedConnectionsEnabled to false.
That way you'll retain all the performance of the pools.
Joe
>
I want your opinion in this, so that I will be confident in using this feature
in our application.
Note : Please look at the sample code that I am using. I AM NOT GOING TO USE PHYSICAL
CONNECTIONS for normal operations. I will use Physical Connection only when I
want to pass Arrays to Oracle.
Thanks
Kiran

Passing (byref) String from Java to C++ via JNI

I wish to pass a string to a C++ Dll as a parameter in a function. The problem is that I don't know howto receive back the data after it is filled in the C++ dll. I am trying to do what is called passing parameters by reference.
Java Code:
public class ABKeyBoard {
public native long leerBanda(int pista, String datos);
public static void main(String[] args) {
String datos=new String();
System.loadLibrary("ABKeyBoard");
new ABKeyBoard().leerBanda(1,datos);
System.out.println(datos); //the content of datos here is empty.
C++ Code:
Java_ABKeyBoard_leerBanda(JNIEnv *env, jobject obj,jint pista, jstring datos)
     char buffer[2024];
     memset(buffer,     0x00,     sizeof(buffer));
     strcpy(buffer, "xxxx");
     datos = env->NewStringUTF(buffer);
return;
Thanks for your help.

In java every parameter are always passed by value.
The datos parameter is a local copy of the string
reference you pass to the method.This is wrong. The String passed to the native method is the same String object you use in Java. Although everything is passed by value in Java, what is actually passed by value is the reference to the String. This means that you can modify the object you pass, but you are not allowed to change the reference to point to a totally different object. That is where the problem is coming in.
The trouble is that it is illegal to modify a String, even from native code. If you need to make changes in-place to the text, pass an array of chars (if your native code uses Unicode), an array of bytes (if it uses normal 8-bit characters) or a StringBuffer. You can legally modify any of these data structures with the new data. But the StringBuffer object is the only one whose length can be changed after it is created. Unfortunately it is also the hardest to use from JNI.
Generally I think you should always pass arrays of bytes/chars to native code instead of Strings when possible. They can be modified in place, and you can use String's methods to get a byte-array in the platform's proper encoding. Using the GetStringUTFChars method is problematic because UTF only maps directly onto ASCII in the case of characters which are in the set of 7-bit ASCII characters. Your code will do wrong things if your String happens to contain some other character, unless your native code expects UTF format strings.
The good news is that C(++) functions which return results in their arguments do not ordinarily change the length. So you should be able to allocate a byte[] or char[] ahead of time of the appropriate size (don't forget to add the trailing null, which is not a component of Java strings). I think byte[] or char[] is the best answer because you can easily map those onto C-style arrays with Get[Primitive]ArrayRegion; the return of that is suitable for passing directly to native code, as long as you have remembered the null-terminator. For instance you could do (*env)->GetByteArrayRegion(env, javaArray, 0, arrayLength, CArray) and then your CArray would be changed to point at the contents of the javaArray (note: it does not copy data into CArray, it changes CArray to point at the array contents, so do not allocate memory for CArray first). Then when you do ReleaseByteArrayRegion the results will be propagated back to Java.

Pass 2D array from java to PLSQL

Similar Messages

Maybe you are looking for