Java Stored Procedure / connection JDBC / Server Side / Client Side

Hi,
I would like to know if we can know at the runtime with a JDBC api if the stored procedure is running in client side or in server side ?
THANKS

You wrote
"Java stored procedures -- by definition - are stored in the 8i rdbms. !!"
From the Oracle8i Java Stored Procedures Developer's Guide
Release 8.1.5
A64686-01
"If you create Java class files on the client side, you can use loadjava to upload them into the RDBMS. Alternatively, you can upload Java source files and let the Aurora JVM compile them. In most cases, it is best to compile and debug programs on the client side, then upload the class files for final testing within the RDBMS"
This means that you can create shared classes that are used on both the client and server side. The source does not need to reside within the server (according to their documentation). Please also note the following from the Oracle8i JDBC Developer's Guide and Reference Release 8.1.5 A64685-01 for using the getConnection() method on the server:
"If you connect to the database with the DriverManager.getConnection() method, then use the connect string jdbc:oracle:kprb:. For example:
DriverManager.getConnection("jdbc:oracle:kprb:");
Note that you could include a user name and password in the string, but because you are connecting from the server, they would be ignored."
So if you're coding a shared class that is to run on both the client and server side, you might do something like this:
Connection conn =
DriverManager.getConnection(
System.getProperty("oracle.server.version") == null
? "jdbc:oracle:thin:@hostname:1521:ORCL"
: "jdbc:oracle:kprb:"),
"youruserid","yourpassword");
As stated earlier, the userid and password are supposedly ignored for server connections retrieved in this manner. I haven't tried this yet, but it is documented by Oracle.
Regards,
Steve
null

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Java stored procedures connection context

In my Oracle database there are two java stored procedures:
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and
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Refer the below link:
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Hi,
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in AE where the message is in "Delivering" state for long time.
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In Thread dumps, i found a strange thing like one thread is hanging on condition wait at the below location :
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     JDBC Scenerio.
Regards,
JP.

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Does anyone know to configure the database to allow a connection to a non-oracle database from a Java Stored procedured, using JDBC?
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Chris

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think you would need to load the JDBC driver for the other database
into the Oracle database (using the "loadjava" tool, of-course).
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third party JDBC driver and obtain a connection to the other database.
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Jdbc and java stored procedures

Hi all,
I am new to Oracle Java Stored Procedures but I am interested in knowing to which extent is object passing supported.
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CREATE OR REPLACE FUNCTION row_count (tab_name VARCHAR2) RETURN NUMBER
AS LANGUAGE JAVA
NAME 'RowCounter.rowCount(java.lang.String) return int';
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A.

NameFromLastDDL Error during java stored procedure upload...

Hi guys,
I am trying to upload a class to send email within a java stored procedure.
JDeveloper fails to upload the class, and the error message doesn't help me:
I guess the automatically generated SQL statment features a "NameFromLastDDL" argument, but i have no control over that....anybody had this issue before ?
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Error while creating class client/Utils
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PLS-00201: identifier 'NameFromLastDDL' must be declared
ORA-06550: line 1, column 85:
PL/SQL: Statement ignored
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PLS-00201: identifier 'NameFromLastDDL' must be declared
ORA-06550: line 1, column 85:
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 at oracle.jdbc.driver.T4CCallableStatement.doOall8(T4CCallableStatement.java:184)
 at oracle.jdbc.driver.T4CCallableStatement.execute_for_rows(T4CCallableStatement.java:873)
 at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1086)
 at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:2984)
 at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3076)
 at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:4273)
 at oracle.aurora.server.tools.loadjava.ClientClassObject.create(ClientClassObject.java:68)
 at oracle.aurora.server.tools.loadjava.SchemaObject.process1(SchemaObject.java:223)
 at oracle.aurora.server.tools.loadjava.LoadJava.add(LoadJava.java:530)
 at oracle.aurora.server.tools.loadjava.LoadJava.addClass(LoadJava.java:584)
 at oracle.aurora.server.tools.loadjava.LoadJava.add(LoadJava.java:434)
 at oracle.aurora.server.tools.loadjava.LoadJava.add(LoadJava.java:378)
 at oracle.aurora.server.tools.loadjava.LoadJava.addJar(LoadJava.java:717)
 at oracle.aurora.server.tools.loadjava.LoadJava.add(LoadJava.java:430)
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 at oracle.jdeveloper.deploy.tools.OracleLoadjava.deploy(OracleLoadjava.java:46)
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 at oracle.jdevimpl.deploy.StoredProcHandler.doDeploy(StoredProcHandler.java:360)
 at oracle.jdevimpl.deploy.StoredProcHandler.doDeployToMostRecent(StoredProcHandler.java:256)
 at oracle.jdevimpl.deploy.StoredProcProfileDt$2.run(StoredProcProfileDt.java:193)

I think u dont've previleges to run
the procedure.
<BLOCKQUOTE>quote:<HR>Originally posted by arunr12:
hi I am calling java stored procedure from jdbc. i am getting wierd exceptions:
CallableStatement cstmt = conn.prepareCall("begin SEND_MAIL(?,?,?);end;");
cstmt.setString(1,"[email protected]");
cstmt.setString(2,"Mail from Stored Proc");
cstmt.setString(3,"This is test mail from Oracle8i");
cstmt.execute();
i am getting following Exception:
java.sql.SQLException: ORA-29532: Java call terminated by uncaught Java exception: java.security.AccessControlException: the Permission (java.util.PropertyPermission * read,write) has not been granted by dbms_java.grant_permission to SchemaProtectionDomain(ISTORE_CUST|PolicyTableProxy(ISTORE_CUST))
ORA-06512: at "ISTORE_CUST.SEND_MAIL", line 0
ORA-06512: at line 1
<HR></BLOCKQUOTE>
null

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!

Sending mail in a Java Stored Procedure

Question: What is the best way to have a Java Stored Procedure connect to our mailhost and send an email? I have been trying to use URL and URLConnection, but I found out URL somehow does not support the "mailto" protocol in the Java Stored Procedure. Funny enough the "mailto" protocol is definetely supported by URL when I test it in the JDK virtual machine.
Maybe this is the reason: I read in the 8i docs that the 8i Virtual Machine is only JDK1.1.6 compliant.
Unfortunately I can't find the 1.1.6 docs anywhere. So I cannot do any research on what protocals are supported in JDK1.1.6 .
Conclusion: Is it possible to send an email in a Java Stored Procedure, and how?
Thanks in advance :-) Johan

The Java mail API was a set of extension libraries for the 1.1 JDK. I have heard of folks who succeeded in loading these intot he database and then using them from within a Java stored procedure.

Error calling Java Stored Procedure

hi I am calling java stored procedure from jdbc. i am getting wierd exceptions:
CallableStatement cstmt = conn.prepareCall("begin SEND_MAIL(?,?,?);end;");
cstmt.setString(1,"[email protected]");
cstmt.setString(2,"Mail from Stored Proc");
cstmt.setString(3,"This is test mail from Oracle8i");
cstmt.execute();
i am getting following Exception:
java.sql.SQLException: ORA-29532: Java call terminated by uncaught Java exception: java.security.AccessControlException: the Permission (java.util.PropertyPermission * read,write) has not been granted by dbms_java.grant_permission to SchemaProtectionDomain(ISTORE_CUST|PolicyTableProxy(ISTORE_CUST))
ORA-06512: at "ISTORE_CUST.SEND_MAIL", line 0
ORA-06512: at line 1
null

I think u dont've previleges to run
the procedure.
<BLOCKQUOTE>quote:<HR>Originally posted by arunr12:
hi I am calling java stored procedure from jdbc. i am getting wierd exceptions:
CallableStatement cstmt = conn.prepareCall("begin SEND_MAIL(?,?,?);end;");
cstmt.setString(1,"[email protected]");
cstmt.setString(2,"Mail from Stored Proc");
cstmt.setString(3,"This is test mail from Oracle8i");
cstmt.execute();
i am getting following Exception:
java.sql.SQLException: ORA-29532: Java call terminated by uncaught Java exception: java.security.AccessControlException: the Permission (java.util.PropertyPermission * read,write) has not been granted by dbms_java.grant_permission to SchemaProtectionDomain(ISTORE_CUST|PolicyTableProxy(ISTORE_CUST))
ORA-06512: at "ISTORE_CUST.SEND_MAIL", line 0
ORA-06512: at line 1
<HR></BLOCKQUOTE>
null

Error loading Java Stored Procedure

When I attempt to deploy a java stored procedure using JDeveloper I get the following error: "ORA-29545: badly formed class: User has attempted to load a class (TestingJava.Testerama) into a restricted package. Permission can be granted using dbms_java.grant_permission(<user>, LoadClassInPackage...". I have attempted to grant the proper permissions but get a "java.lang.SecurityException: policy table update" error. The user granting the permissions has the Java_Admin role. What do I do?
null

I think u dont've previleges to run
the procedure.
<BLOCKQUOTE>quote:<HR>Originally posted by arunr12:
hi I am calling java stored procedure from jdbc. i am getting wierd exceptions:
CallableStatement cstmt = conn.prepareCall("begin SEND_MAIL(?,?,?);end;");
cstmt.setString(1,"[email protected]");
cstmt.setString(2,"Mail from Stored Proc");
cstmt.setString(3,"This is test mail from Oracle8i");
cstmt.execute();
i am getting following Exception:
java.sql.SQLException: ORA-29532: Java call terminated by uncaught Java exception: java.security.AccessControlException: the Permission (java.util.PropertyPermission * read,write) has not been granted by dbms_java.grant_permission to SchemaProtectionDomain(ISTORE_CUST|PolicyTableProxy(ISTORE_CUST))
ORA-06512: at "ISTORE_CUST.SEND_MAIL", line 0
ORA-06512: at line 1
<HR></BLOCKQUOTE>
null

Java Stored Procedure / Server Side / Client Side / connection

Hi,
I would like to know if we can know at the runtime with a JDBC api if the stored procedure is running in client side or in server side ?
THANKS

You wrote
"Java stored procedures -- by definition - are stored in the 8i rdbms. !!"
From the Oracle8i Java Stored Procedures Developer's Guide
Release 8.1.5
A64686-01
"If you create Java class files on the client side, you can use loadjava to upload them into the RDBMS. Alternatively, you can upload Java source files and let the Aurora JVM compile them. In most cases, it is best to compile and debug programs on the client side, then upload the class files for final testing within the RDBMS"
This means that you can create shared classes that are used on both the client and server side. The source does not need to reside within the server (according to their documentation). Please also note the following from the Oracle8i JDBC Developer's Guide and Reference Release 8.1.5 A64685-01 for using the getConnection() method on the server:
"If you connect to the database with the DriverManager.getConnection() method, then use the connect string jdbc:oracle:kprb:. For example:
DriverManager.getConnection("jdbc:oracle:kprb:");
Note that you could include a user name and password in the string, but because you are connecting from the server, they would be ignored."
So if you're coding a shared class that is to run on both the client and server side, you might do something like this:
Connection conn =
DriverManager.getConnection(
System.getProperty("oracle.server.version") == null
? "jdbc:oracle:thin:@hostname:1521:ORCL"
: "jdbc:oracle:kprb:"),
"youruserid","yourpassword");
As stated earlier, the userid and password are supposedly ignored for server connections retrieved in this manner. I haven't tried this yet, but it is documented by Oracle.
Regards,
Steve
null

APEX fails with Java stored procedure that creates a JDBC connection

Hello!
We are facing a strange problem since we have upgraded from Oracle 10g and Apache to Oracle 11g with Embedded Gateway.
Here is what we do:
** APEXX calls a PL/SQL package function "OPEN_CONNECTION" that wraps a Java stored procedure called "openConnection".*
FILE_READER_REMOTE_API.openConnection(user, password, host, port, service);
** The Java stored procedures "openConnection" opens a JDBC connection to an other database:*
public class FileReaderRemote {
private static Connection conn = null;
private static DefaultContext remoteContext = null;
public static void openConnection(String user, String password, String host, String port, String service) throws SQLException {
// Load the Oracle JDBC driver
DriverManager.registerDriver(new oracle.jdbc.OracleDriver());
java.util.Properties props = new java.util.Properties();
props.put ("user", user);
props.put ("password", password);
//props.put ("database", "//" + host + ":" + port + "/" + service);
props.put ("database", host + ":" + port + ":" + service);
props.put("v$session.program", "FileReaderRemote2");
// Connect to the database
remoteContext = Oracle.getConnection("jdbc:oracle:thin:", props);
This procedure used to work fine before the upgrade, but now we see the following:
* It still works when called directly from TOAD or SQL*Plus, even under the user ANONYMOUS.
* When called from APEX and the target database is Oracle 11g, it still works.
* When called from APEX and the target database is Oracle 10g, it takes several minutes and we receive this error:
*"Socket read timed out"*
We have tested the following workaround:
We have created a database link to our own database and called the stored procedure through that database link.
FILE_READER_REMOTE_API.openConnection*@loopback*(user, password, host, port, service);
This works, but is not really an option.
I hope some one of you can explain this strange behaviour to me.
Best regards,
Matthias

You wrote
"Java stored procedures -- by definition - are stored in the 8i rdbms. !!"
From the Oracle8i Java Stored Procedures Developer's Guide
Release 8.1.5
A64686-01
"If you create Java class files on the client side, you can use loadjava to upload them into the RDBMS. Alternatively, you can upload Java source files and let the Aurora JVM compile them. In most cases, it is best to compile and debug programs on the client side, then upload the class files for final testing within the RDBMS"
This means that you can create shared classes that are used on both the client and server side. The source does not need to reside within the server (according to their documentation). Please also note the following from the Oracle8i JDBC Developer's Guide and Reference Release 8.1.5 A64685-01 for using the getConnection() method on the server:
"If you connect to the database with the DriverManager.getConnection() method, then use the connect string jdbc:oracle:kprb:. For example:
DriverManager.getConnection("jdbc:oracle:kprb:");
Note that you could include a user name and password in the string, but because you are connecting from the server, they would be ignored."
So if you're coding a shared class that is to run on both the client and server side, you might do something like this:
Connection conn =
DriverManager.getConnection(
System.getProperty("oracle.server.version") == null
? "jdbc:oracle:thin:@hostname:1521:ORCL"
: "jdbc:oracle:kprb:"),
"youruserid","yourpassword");
As stated earlier, the userid and password are supposedly ignored for server connections retrieved in this manner. I haven't tried this yet, but it is documented by Oracle.
Regards,
Steve
null

SQL Server connection in Java Stored Procedures

Is it possible to establish a connection to microsoft sql server through java stored procedures. When I try to create a connetion to SQL Server I am getting the following exception in trace file
java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Error establishing socket.
at com.microsoft.jdbc.base.BaseExceptions.createException(Unknown Source)
at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
at com.microsoft.jdbc.sqlserver.tds.TDSConnection.<init>(Unknown Source)
at com.microsoft.jdbc.sqlserver.SQLServerImplConnection.open(Unknown Source)
at com.microsoft.jdbc.base.BaseConnection.getNewImplConnection(Unknown Source)
at com.microsoft.jdbc.base.BaseConnection.open(Unknown Source)
at com.microsoft.jdbc.base.BaseDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java)
at java.sql.DriverManager.getConnection(DriverManager.java)
The connection details are correct and I am able to connect when I run the java code externally. Thanks in advance for the help

Can you connect to the MSSQL database from inside Oracle in (say) a SQL*Plus or SQL Developer session?
In other words, is the problem in the Java or the database linkages? Are you using Heterogeneous Services or Transparent Gateways?
Cheers, APC
blog: http://radiofreetooting.blogspot.com

Java Stored Procedure / connection JDBC / Server Side / Client Side

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