Retrieving table of table in java from PL-SQL

I want to transfer table or record from pl-sql to java. I mean I have a result set copied into a table row type variable. I will appreciate if any one can any one share some info or chunk of code on this.
Thanks
Ratan

user529557,
You have the following options:
* Web Services
* Servlets
* EJB
* RMI
* JMS
There may be others.
Good Luck,
Avi.

Similar Messages

Advantages and Disadvantages of calling java from PL/SQL

Hi,
I have one doubt. What are all the advantages and disadvantages of the calling java from PL/SQL?
In actual scenario the java program will be in the Application server side. It will do the operation and it will store the result in Data base. But in this case (calling java from PL/SQL), we are loading the java program in the Data base and it is doing the operations.
I have seen many posts are coming regarding loading jar files into the database. Actually the jar will deploy in to Application server. Is there any difference instead of keeping in the Application server side?
Then I have read,
advantages:
-> java having lot API's. so PL/SQL can use that API's.
-> if we can not do anything in PL/SQL. we can do it using this mtd(calling java from PL/SQL).
My questions:
-> could you explain what are all the things we can not do but we can do using "calling java from PL/SQL" method?
-> is there any other advantages?
Disadvantages:
-> the performance is very slow in calling java from PL/SQL.
My questions:
-> Then why others are loading java files and jar files into database?
-> is there any other disadvantages?
Could you explain about this one? It will be more helpful to others also…
Regards,
kk

Hi,
You can read the free first chapter of my book @ http://www.amazon.com/gp/product/1555583296/ (see details then Excerpt)
Kuassi http://db360.blogspot.com

Problem in generate Java from PL SQL package in Jdeveloper

Hi
i have problem in create java class from PL SQL package in JDeveloper.
I use Database navigator of jdeveloper and right click on a package and choose Generate Java then in Jpublisher window choose my view Controller and accept other default values.
I call methods of generated class in the Action of a button in my JSP page, but when I click the button it throw null pointer exception !!! i fund one of generated method return null and it lead to this exception.
protected DefaultContext __tx = null;
public DefaultContext getConnectionContext() throws SQLException {
if (__tx==null){
__tx = (getConnection()==null) ? DefaultContext.getDefaultContext() : new DefaultContext(getConnection());
    return __tx;
public Connection getConnection() throws SQLException
    if (__onn!=null) return __onn;
     else if (__tx!=null) return __tx.getConnection();
     else if (__dataSource!=null) __onn= __dataSource.getConnection();
     return __onn;
i try to generate class in Model project and create DataControl for that and use method action but noting change and i get null pointer again!!
Jdeveloper Versino = 11.1.1.7.0

Let me ask you another question: Why do you generate java from the package at all?
Where do you want to call the package?
Back to your question: you should see code like
    public void setDataSourceLocation(String dataSourceLocation) throws SQLException {
        javax.sql.DataSource dataSource;
        try {
            Class cls = Class.forName("javax.naming.InitialContext");
            Object ctx = cls.newInstance();
            java.lang.reflect.Method meth = cls.getMethod("lookup", new Class[] { String.class });
            dataSource = (javax.sql.DataSource) meth.invoke(ctx, new Object[] { "java:comp/env/" + dataSourceLocation });
            setDataSource(dataSource);
        } catch (Exception e) {
            throw new java.sql.SQLException("Error initializing DataSource at " + dataSourceLocation + ": " + e.getMessage());
in the generated code. This code look up a datasource (which you have defined e.g. on the Weblogic Server) by calling the method
setDataSourceLocaltion("jdbc/HRConnDS");
This look up the datasource nad stores it in the class variable.
Timo

Issue generating java from pl/sql package

Hi,
In JDeveloper (11.1.1.6) I am having an issue generating java from a pl/sql package. When I am in the database navigator I right click on the package and select "generate java". This produces some java files, some sqlj files and a <package_name>.javatmp file. When a collegue does the same all files are generated with a .java extension. Can anyone tell me what I can do to generate all java files?
Thanks,
Graeme

It turns out that I was running against a 64-bit JDK. (1.6.0_41.)
When I changed this to run against a 32 bit JDK (also 1.6.0_41) my problem went away.
It might be worth noting that my machine is 64 bit.

Advantages of calling java from PL/SQL

Hi experts,
Could any one tell me the advantages of calling java program from PL/SQL?
Regards,
karthi

Hi,
You can read the free first chapter of my book @ http://www.amazon.com/gp/product/1555583296/ (see details then Excerpt)
Kuassi http://db360.blogspot.com

I need the "Real" Table / Table Column names from a sql view

Firstly, we have a system with ~1000 tables and ~250 views. We have field level security on the table columns (in our code)
Now we have a lot of views which select data from the tables, but I need to get the "Table Column Name" that is linked in the view.
I know there are view columns that is not linked to a specific table column, (or concatenation of columns) so those columns can just return NULL.
From the sample you will see there is a view selecting data from another view. I know it is not the best sql performance (execution path) but that is another topic on its own.
I went through a lot of the sys.* stored procs or sys.* views to try and figure out if there is a view that we can use to get the expected results.
here is the sql code:
if
Exists (select
* from
sys.all_objects
where name =
'AliasView2')
drop view dbo.AliasView2
if
Exists (select
* from
sys.all_objects
where name =
'AliasView1')
drop view dbo.AliasView1
if
Exists (select
* from
sys.all_objects
where name =
'Table4')
BEGIN
alter table dbo.Table4
DROP CONSTRAINT [FK_T4_T3]
alter table dbo.Table4
DROP CONSTRAINT [PK_T4_Constraint]
drop table dbo.Table4
END
if
Exists (select
* from
sys.all_objects
where name =
'Table3')
BEGIN
alter table dbo.Table3
DROP CONSTRAINT [FK_T3_T2]
alter table dbo.Table3
DROP CONSTRAINT [PK_T3_Constraint]
drop table dbo.Table3
END
if
Exists (select
* from
sys.all_objects
where name =
'Table2')
BEGIN
alter table dbo.Table2
DROP CONSTRAINT [FK_T2_T1]
alter table dbo.Table2
DROP CONSTRAINT [PK_T2_Constraint]
drop table dbo.Table2
END
if
Exists (select
* from
sys.all_objects
where name =
'Table1')
BEGIN
alter table dbo.Table1
DROP CONSTRAINT [PK_T1_Constraint]
drop table dbo.Table1
END
create
Table dbo.Table1
T1_PK        int
NOT NULL
Identity(1, 1)
CONSTRAINT [PK_T1_Constraint]
PRIMARY KEY (T1_PK),
T1_Field1    varchar
NULL,
T1_Field2    varchar
NULL,
create
Table dbo.Table2
T2_PK        int
NOT NULL
Identity(1, 1)
CONSTRAINT [PK_T2_Constraint]
PRIMARY KEY (T2_PK),
T2_Field1    varchar
NULL,
T2_Field2    varchar
NULL,
T2_FK        int
NOT NULL
CONSTRAINT [FK_T2_T1]
FOREIGN KEY (T2_FK)
REFERENCES dbo.Table1
(T1_PK)
create
Table dbo.Table3
T3_PK        int
NOT NULL
Identity(1, 1)
CONSTRAINT [PK_T3_Constraint]
PRIMARY KEY (T3_PK),
T3_Field1    varchar
NULL,
T3_Field2    varchar
NULL,
T3_FK        int
NOT NULL
CONSTRAINT [FK_T3_T2]
FOREIGN KEY (T3_FK)
REFERENCES dbo.Table2
(T2_PK)
create
Table dbo.Table4
T4_PK        int
NOT NULL
Identity(1, 1)
CONSTRAINT [PK_T4_Constraint]
PRIMARY KEY (T4_PK),
T4_Field1    varchar
NULL,
T4_Field2    varchar
NULL,
T4_FK        int
NOT NULL
CONSTRAINT [FK_T4_T3]
FOREIGN KEY (T4_FK)
REFERENCES dbo.Table3
(T3_PK)
GO
--Create a basic view to select some data
CREATE
VIEW dbo.AliasView1
AS
select
t2.T2_FK as Table2_ForeignKey,
t1.T1_Field1 as Table1_FieldOne,
t2.T2_Field1 as Table2_FieldOne
FROM Table1 t1
Left outer
join Table2 t2 on t2.T2_FK
= t1.T1_PK;
GO
--Create another view that select basic data, and also selecting data from view 1
CREATE
VIEW dbo.AliasView2
AS
select
v1.Table1_FieldOne
as Table1_FieldOne,
v1.Table2_FieldOne
as Table2_FieldOne,
t3.T3_Field1 as Table3_FieldOne,
t3.T3_Field2
FROM Table3 t3
Left outer
join AliasView1 v1 on v1.Table2_ForeignKey
= t3.T3_PK;
GO
--My attempt to get the desired output, but no luck
SELECT
col.COLUMN_NAME as AliasColumnName, col.DATA_TYPE, col.CHARACTER_MAXIMUM_LENGTH
as max_length, colu.*
FROM
information_schema.COLUMNS col
left
outer join
(SELECT
VIEW_SCHEMA, VIEW_NAME, COLUMN_NAME,
min(TABLE_NAME)
as TABLE_NAME
FROM information_schema.VIEW_COLUMN_USAGE colu
WHERE VIEW_NAME =
'AliasView2'
Group by VIEW_SCHEMA, VIEW_NAME, COLUMN_NAME
) COLU ON colU.VIEW_NAME
= col.TABLE_NAME
and colu.COLUMN_NAME
= col.COLUMN_NAME
left
outer join
(select a.name
as TableName, c.name
as FieldName
from sys.foreign_key_columns fk
join sys.all_objects a
on a.object_id
= fk.parent_object_id
join sys.all_columns c
on c.object_id
= a.object_id
and c.column_id
= fk.parent_column_id
join sys.all_objects ar
on ar.object_id
= fk.referenced_object_id
join sys.all_columns cr
on cr.object_id
= ar.object_id
and cr.column_id
= fk.referenced_column_id
join sys.schemas scr
on scr.schema_id
= ar.schema_id
) fks on fks.TableName
= colu.TABLE_NAME
and fks.FieldName
= colu.COLUMN_NAME
WHERE COL.TABLE_NAME
= 'AliasView2'
order
by col.ORDINAL_POSITION
This is the results being returned: (That is not 100% what I am looking for)
AliasColumnName
DATA_TYPE
max_length
VIEW_SCHEMA
VIEW_NAME
COLUMN_NAME
TABLE_NAME
Table1_FieldOne
varchar
1
dbo
AliasView2
Table1_FieldOne
AliasView1
Table2_FieldOne
varchar
1
dbo
AliasView2
Table2_FieldOne
AliasView1
Table3_FieldOne
varchar
1
NULL
NULL
NULL
NULL
T3_Field2
varchar
1
dbo
AliasView2
T3_Field2
Table3
The desired results must be like the following:
AliasColumnName
DATA_TYPE
max_length
VIEW_SCHEMA
VIEW_NAME
COLUMN_NAME
TABLE_NAME
Table1_FieldOne
varchar
1
dbo
AliasView2
T1_Field1
Table1
Table2_FieldOne
varchar
1
dbo
AliasView2
T2_Field1
Table2
Table3_FieldOne
varchar
1
dbo
AliasView2
T3_Field1
Table3
T3_Field2
varchar
1
dbo
AliasView2
T3_Field2
Table3
NOTE: the COLUMN_NAME and TABLE_NAME must the REAL field of the TABLE it belongs to and not only ONE LEVEL Higher’s ALIAS View Name

Now we have a lot of views which select data from the tables, but I need to get the "Table Column Name" that is linked in the view.
If you are using SQL Server 2012/2014, then you can use
sys.dm_exec_describe_first_result_set (Transact-SQL) to gte the informations.
Olaf Helper
[ Blog] [ Xing] [ MVP]

Returning operation, table and column from a sql query

Hi,
I am working on Oracle 10g and i have to do achieve something like this.
i have to create procedure or functions which will accept a SQL query and will return following :
1). Operation like 'SELECT', 'INSERT', 'UPDATE', 'DELETE' etc.
2). Column names
3). Table involved.
One way to achieve this would be through hard parsing of string which might be time consuming. So do we have any in-built oracle package or function for the same job ?
Regards,
Vikas Kumar

Check for DBMS_SQL package and DESCRIBE_COLUMNS procedure in that package.
You might need a combination of this package and Hard parsing of the input string.
For operation you can trim any space and brackets using TRIM function and then you can extrcat first 6 characters using SUBSTR for Operation.
I have not worked or used DBMS_SQL so wont be able to help you much on this.
Here is the link for DBMS_SQL
http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14258/d_sql.htm#i1026120
Regards
Arun

How to save and retrieve an image in JSP/Java and MS SQL/server 2000?

Hi All,
I am uploading an image from the JSP page and want to store it in MS SQL server. I have made a column by the name "COMPANY_LOGO" with data type as image MS SQL/server 2000. How do I save the full image in the table and how do I display the thumb nail image on the JSP page???
Regards,
Raj

BEFORE YOU POST A TOPIC HERE: Please be sure your topic is related to features or functionality of this site. This forum is not for general technology questions. Not sure which forum to use? Try searching for your topic in the "Search Forums" element on the left panel.
Post your question in
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or
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Do not reply here

Passing Var to Java from PL/SQL

I am trying to pass a PL/SQL varchar2 var to Java String. Java is not responding..
sendmail(v_sub,v_msg,'[email protected]','[email protected]');
it does accept ('ddd','ddd','[email protected]','[email protected]');
Any ideas on how to make it work so I can use PL/SQL variable.
Thanks much!

Try with the following example.
This ia taken from the Oracle8i manual.
import java.sql.*;
import java.io.*;
import oracle.jdbc.driver.*;
public class GenericDrop {
public static void dropIt (String object_type, String object_name)
throws SQLException {
// Connect to Oracle using JDBC driver
Connection conn =
DriverManager.getConnection("jdbc:default:connection:");
// Build SQL statement
String sql = "DROP " + object_type + " " + object_name;
try {
Statement stmt = conn.createStatement();
stmt.executeUpdate(sql);
stmt.close();
} catch (SQLException e) {System.err.println(e.getMessage());}
CREATE OR REPLACE PROCEDURE drop_it (
obj_type VARCHAR2,
obj_name VARCHAR2)
AS LANGUAGE JAVA
NAME 'GenericDrop.dropIt(java.lang.String, java.lang.String)';
Create table ee1(a number);
declare
i1 varchar2(20);
i2 varchar2(20);
begin
i1:='TABLE';
i2:='EE1';
dropit(i1,i2);
end;
There is no problem in executing the above procedure.
What is the exact error message you are getting?

Calling Java from PL/SQL truncates long

We are using Oracle 8.1.6 on Sun.
We have a table with a field defined as type Long.
When a record is inserted into the table, a trigger fires a java stored procedure.
The stored proc takes the provided long and attempts to pass it to a RMI call.
The long is passed as a java.lang.string.
However, the class that is invoked through RMI received a NULL value.
null

Is the same problem happening for a small String value also?
i.e stroing the a short value in the long column also causing the same problem.
Will it be possible to give us some kind of test case (code) or you can give us the exact steps to reproduce the problem.
null

Calling JAVA from PL/SQL

Hello,
Are there any PL/SQL code examples on how to call a JAVA program from a when-button-pressed trigger event?
Thanks much.

Hi,
I was able to import the JAVA code via the "Import Java Classes". Now, what PL/SQL statements do I put in my "when-button-pressed" trigger to execute this JAVA code? Any samples around, preferably with examples of parameter passing.
Thanks in advance!!

Using sockets with java from PL/SQL in Oracle 8.1.7 DBA

Hey all,
I've been struggling for a couple of weeks now with a problem. I wrote a framework around a toolkit which makes socket connections to another server. I am attempting to use the framework from within a PL/SQL script, which is calling the framework class files which have been loaded into Oracle 8.1.7 database. The problem seems to be if I grant all permissions, or socket permissions for all hosts/ports, or even the ones I know about are being used, I get a hang when trying to connect. The funny thing is, using the toolkit, if I invoke their classes directly within code written from Oracle's code editor, it will work.
I suspect there is
a) Some hidden permission issue
b) A bug in the sockets implementation Oracle is using for their JVM.
Can anyone offer insight to this problem?
Thanks,
Dave Blake
[email protected]

Hello,
I'm trying to investigate the same thing.
I want to make a soap-client with PL/SQL with 8i 8.1.6.0.0
Did you succeed some additional information ??
I tried to run the following example:
http://www.oracle.com/technology/tech/webservices/htdocs/samples/dbwebservice/DBWebServices_PLSQL.html
but it only works with 9i.
With 8i the errors encountered were : XMLTYPE undefined
Perhaps if we find the definition of XMLTYPE and we process it to 8i we'll be able to run the example ??
thank's

Calling java from pl/sql in oracle 10g?its very urgent.

Hi Friends,
i hve simple java code:
class Hell
public static String Hello()
return"hello world";
& compile this code using javac & loaded Hell.class in to database using this command
c:\>loadjava -user chandru/shekar@pulser c:\Hell.class
& i wrote pl/sql like:
CREATE OR REPLACE FUNCTION Hell RETURN String as language java name 'Hell.Hello() return java.lang.String';
i will compile the code & run but at that time this error i am getting:
ORA-29516: Aurora assertion failure: Assertion failure at eox.c:317
Uncaught exception System error: java/lang/UnsupportedClassVersionError
I am using oracle 10g.Plzzzzzzzzz help me.Its very important to for me.
Is any path i hve to set for oracle 10g database.Plz any one help me.
regards
shekar

Hello here is how I solved the problem
Let us assume that i try to load the file Hello.Java into the user scott.
public class Hello {
     public static String world() {
          return "hello world";
1) Dropjava
You must drop the java class if you already have loaded the class onto the server.
dropjava -u scott/tiger Hello.class
2) load class on server and let the server compile the source code.
It is necessary to compile the source code on the server when the server and the local machine have different Java versions. To check which Java version there is running on the client machine open a command prompt and write Java -version
loadjava -user scott/tiger -resolve Hello.java
3) Publish stored procedure
sqlplus scott/tiger@oracle
CREATE OR REPLACE FUNCTION helloworld RETURN VARCHAR2 AS                LANGUAGE JAVA NAME 'Hello.world () return java.lang.String';
4)Call stored procedure
VARIABLE myString VARCHAR2(20);
CALL helloworld() INTO :myString;
PRINT myString;
RGDS
Thomas Winterberg

URGENT - Call java from pl/sql

Hi,
How Can I call external java class in a pl/Sql ??
Regards
Giordano

Hi
a way to do that, is to load the external java class in your database, like that (ORACLE_SID is setting):
loadjava -user myuser/mypassword /mypathname/myPackage.class
Then, you must declare this external procedure like that,
(for example)
CREATE OR REPLACE PROCEDURE p_jMyProcedure (Param in varchar2) AS LANGUAGE JAVA NAME 'myPackage.myProcedure(java.lang.String)';
you can call your procedure as a pl/sql procedure
so long;

Retrieving Table Types

Hi,
I am connecting to Oracle8i from my VB6 application through ADO (MDAC 2.6 Service Pack 1) and Oracle OLE DB Provider(OraOLEDB.Oracle).
My question is can we retrieve Table type parameters from Stored Procedures(and Stored Functions)? If yes how?
Presently we are connecting to Oracle from Vb through Microsoft OLE DB Provider(MSDASQL) and Microsoft ODBC driver for Oracle.
We are trying to move to Oracle OLE DB provider as this provider is supposed to be faster than the ones we are using.
Regards,
Ashok

hi, you can go with this one:
DATA: itab type standard table of str_itab1.
SELECT SPFLI~CARRID SPFLI~CONNID SCARR~CARRNAME SPFLI~CITYFROM SPFLI~CITYTO SFLIGHT~FLDATE SFLIGHT~PRICE SPFLI~DEPTIME SPFLI~ARRTIME SFLIGHT~CARRID SFLIGHT~CONNID SCARR~CARRNAME
INTO CORRESPONDING FIELDS OF TABLE itab FROM
(( SPFLI INNER JOIN SFLIGHT ON SPFLI~CARRID = SFLIGHT~CARRID AND
                      SPFLI~CONNID = SFLIGHT~CONNID )
   INNER JOIN SCARR ON SPFLI~CARRID = SCARR~CARRID )
WHERE SPFLI~CITYFROM = '<yourcityfrom>' AND
      SPFLI~CITYTO = '<your_cityto> ' AND
      SFLIGHT~FLDATE = '<your_fldate>'.
Spoken generally, it' s not a too good idea to join to many tables at once.
Please reward if helpful,

Retrieving table of table in java from PL-SQL

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