Horrible performance with Oracle JDBC
Hi All,
I've been running into a problem with Oracle's JDBC driver it looks like. Queries are taking about 1 - 2 seconds to run, when they should take around 100 ms or less. Even "select sysdate from dual" takes 1.5 seconds or so.
I am using connection pooling (Both C3P0 and Apache DBCP seem to yield about the same results). I have tried a few different Oracle drivers (the 10g ones seem to be the fastest). I'm using the Thin Client.
I'm pretty much out of ideas at this point, and was wondering if anyone else had run into similar problems and could offer any advice.
Thanks.
Is this a general error?Do you experience this problem in a specific workstation or generally?Do you have a quick response using sqlplus? Have you checked that the delay is during query execution?There may be a chance that you don't get immediately a connection from the pool.
Similar Messages
-
Horrible performance with JDK 1.3.1!
There is something very weird going on with Solaris (SPARC) JDK 1.3.1
Hotspot Server jvm. We have an existing application which gets a large
resultset back from the database, iterates over it and populates two int[]
arrays.
The operation iterates thru a 200,000 row resultset, which has three
interger columns.
Here are the performance numbers for various jdk (hotspot 2.0) combinations:
Using Solaris JDK1.2.2_05a with the jit: 3 seconds
Using Solaris JDK1.3.0 -server: <3 seconds
Using Windows JDK1.3.1 -server: <3 seconds
Using Solaris JDK1.3.1 -client: 7 seconds
Using Solaris JDK1.3.1 -server: 3 MINUTES!
As you can see the solaris 1.3.1 -server is having horrible performance, 60X
worse than jdk1.3.0 -server and 1.2.2_05a with jit. I thought it was a
problem with 1.3.1 on solaris, so I tried the 1.3.1 -client and while the
performance was much better than 3 minutes, it still was slower than (which
I expected since -client is meant for client side apps). I have no idea why
this is happening. Below are the details of the problem.
Oracle 8.1.7 on solaris 2.7
Solaris 2.6
Oracle Thin JDBC driver for 8.1.7 (classes12.zip)
Code:
String strQuery = "select entity_id, entity_child, period_id" +
" FROM entity_map" +
" WHERE entity_id >=0" +
" AND period_id in (" + sEmptyPeriodIds + ")" +
" ORDER BY period_id, entity_id ";
boolean bAddedChildren = false;
int intEntityId;
int intChildId;
int intPeriodId;
//objDatabse just wraps creation and execution of resultset
rs = objDatabase.executeSQLAndReturnResultSet( strQuery );
//Timing start here
while ( rs.next() )
intEntityId = rs.getInt( 1 );
intChildId = rs.getInt( 2 );
intPeriodId = rs.getInt( 3 );
// embo.addEntityMap( intPeriodId, intEntityId, intChildId );
bAddedChildren = true;
//Timing ends here
If anyone has had similiar problems, I'd love to hear about it.
Something is really really wrong with how 1.3.1 -server is optimizing the
oracle jdbc code. Problem is that this is a black box, with no source
available. Doesn't oracle test new versions of sun jvm's when they come
out??
Thanks,
Darren
nullDarren,
Good luck on trying to get any support for JDK 1.3.x with the ORACLE drivers. ORACLE doesn't support JDK 1.3.x yet. We've had other problems with the ORACLE 8.1.7 drivers. Have you tried running the same bench marks using the 8.1.6 or 8.1.6.2 drivers? I would be interested to find out if the performance problems are driver related or just JVM.
-Peter
See http://technet.oracle.com:89/ubb/Forum8/HTML/003853.html
null -
Non jdriver poor performance with oracle cluster
Hi,
we decided to implement batch input and went from Weblogic Jdriver to Oracle Thin 9.2.0.6.
Our system are a Weblogic 6.1 cluster and an Oracle 8.1.7 cluster.
Problem is .. with the new Oracle drivers our actions on the webapp takes twice as long as with Jdriver. We also tried OCI .. same problem. We switched to a single Oracle 8.1.7 database .. and it worked again with all thick or thin drivers.
So .. new Oracle drivers with oracle cluster result in bad performance, but with Jdriver it works perfectly. Does sb. see some connection?
I mean .. it works with Jdriver .. so it cant be the database, huh? But we really tried with every JDBC possibility! In fact .. we need batch input. Advise is very appreciated =].
Thanx for help!!
Message was edited by mindchild at Jan 27, 2005 10:50 AM
Message was edited by mindchild at Jan 27, 2005 10:51 AMThx for quick replys. I forget to mention .. we also tried 10g v10.1.0.3 from instantclient yesterday.
I have to agree with Joe. It was really fast on the single machine database .. but we had same poor performance with cluster-db. It is frustrating. Specially if u consider that the Jdriver (which works perfectly in every combination) is 4 years old!
Ok .. we got this scenario, with our appPage CustomerOverview (intensiv db-loading) (sorry.. no real profiling, time is taken with pc watch) (Oracle is 8.1.7 OPS patch level1) ...
WL6.1_Cluster + Jdriver6.1 + DB_cluster => 4sec
WL6.1_Cluster + Jdriver6.1 + DB_single => 4sec
WL6.1_Cluster + Ora8.1.7 OCI + DB_single => 4sec
WL6.1_Cluster + Ora8.1.7 OCI + DB_cluster => 8-10sec
WL6.1_Cluster + Ora9.2.0.5/6 thin + DB_single => 4sec
WL6.1_Cluster + Ora9.2.0.5/6 thin + DB_cluster => 8sec
WL6.1_Cluster + Ora10.1.0.3 thin + DB_single => 2-4sec (awesome fast!!)
WL6.1_Cluster + Ora10.1.0.3 thin + DB_cluster => 6-8sec
Customers rough us up, because they cannot mass order via batch input. Any suggestions how to solve this issue is very appreciated.
TIA
>
>
Markus Schaeffer wrote:
Hi,
we decided to implement batch input and went fromWeblogic Jdriver to Oracle Thin 9.2.0.6.
Our system are an Weblogic 6.1 cluster and a Oracle8.1.7 cluster.
Problem is .. with the new Oracle drivers ouractions on the webapp takes twice as long
as with Jdriver. We also tried OCI .. same problem.We switched to a single Oracle 8.1.7
database .. and it worked again with all thick orthin drivers.
So .. new Oracle drivers with oracle cluster
result in bad performance, but with
Jdriver it works perfectly. Does sb. see someconnection?Odd. The jDriver is OCI-based, so it's something
else. I would try the latest
10g driver if it will work with your DBMS version.
It's much faster than any 9.X
thin driver.
Joe
I mean .. it works with Jdriver .. so it cant bethe database, huh? But we really
tried with every JDBC possibility!
Thanx for help!! -
Poor performance with Oracle Spatial when spatial query invoked remotely
Is anyone aware of any problems with Oracle Spatial (10.2.0.4 with patches 6989483 and 7003151 on Red Hat Linux 4) which might explain why a spatial query (SDO_WITHIN_DISTANCE) would perform 20 times worse when it was invoked remotely from another computer (using SQLplus) vs. invoking the very same query from the database server itself (also using SQLplus)?
Does Oracle Spatial have any known problems with servers which use SAN disk storage? That is the primary difference between a server in which I see this poor performance and another server where the performance is fine.
Thank you in advance for any thoughts you might share.OK, that's clearer.
Are you sure it is the SQL inside the procedure that is causing the problem? To check, try extracting the SQL from inside the procedure and run it in SQLPLUS with
set autotrace on
set timing on
SELECT ....If the plans and performance are the same then it may be something inside the procedure itself.
Have you profiled the procedure? Here is an example of how to do it:
Prompt Firstly, create PL/SQL profiler table
@$ORACLE_HOME/rdbms/admin/proftab.sql
Prompt Secondly, use the profiler to gather stats on execution characteristics
DECLARE
l_run_num PLS_INTEGER := 1;
l_max_num PLS_INTEGER := 1;
v_geom mdsys.sdo_geometry := mdsys.sdo_geometry(2002,null,null,sdo_elem_info_array(1,2,1),sdo_ordinate_array(0,0,45,45,90,0,135,45,180,0,180,-45,45,-45,0,0));
BEGIN
dbms_output.put_line('Start Profiler Result = ' || DBMS_PROFILER.START_PROFILER(run_comment => 'PARALLEL PROFILE')); -- The comment name can be anything: here it is related to the Parallel procedure I am testing.
v_geom := Parallel(v_geom,10,0.05,1); -- Put your procedure call here
dbms_output.put_line('Stop Profiler Result = ' || DBMS_PROFILER.STOP_PROFILER );
END;
SHOW ERRORS
Prompt Finally, report activity
COLUMN runid FORMAT 99999
COLUMN run_comment FORMAT A40
SELECT runid || ',' || run_date || ',' || run_comment || ',' || run_total_time
FROM plsql_profiler_runs
ORDER BY runid;
COLUMN runid FORMAT 99999
COLUMN unit_number FORMAT 99999
COLUMN unit_type FORMAT A20
COLUMN unit_owner FORMAT A20
COLUMN text FORMAT A100
compute sum label 'Total_Time' of total_time on runid
break on runid skip 1
set linesize 200
SELECT u.runid || ',' ||
u.unit_name,
d.line#,
d.total_occur,
d.total_time,
text
FROM plsql_profiler_units u
JOIN plsql_profiler_data d ON u.runid = d.runid
AND
u.unit_number = d.unit_number
JOIN all_source als ON ( als.owner = 'CODESYS'
AND als.type = u.unit_type
AND als.name = u.unit_name
AND als.line = d.line# )
WHERE u.runid = (SELECT max(runid) FROM plsql_profiler_runs)
ORDER BY d.total_time desc;Run the profiler in both environments and see if you can see where the slowdown exists.
regards
Simon -
Deploying .jar with Oracle JDBC thin driver
I was just experimenting with a Java application that uses an Oracle JDBC driver. It runs fine in JDeveloper. However, when I deploy it to a .jar and run it from a Windows XP Command Prompt I get:
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\xxx\deploy>java -jar testme.jar
Exception in thread "main" java.lang.NullPointerException
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
Is there anything special I need to do to the Deploy file? I tried including the the classes111 manifest to no avail.Hi,
Ensure that the JVM being used is the same or at least same spec level that you built your project. JDeveloper 9.0.3 uses VM's compatible with 1.3.1 by default. It is possible that your OS path has another VM that the cmd line defaults to. Use a java -version to check this.
Also ensure that you include Oracle JDBC as a project library and when you go to create a JAR file (either simple archiver or a Client Jar) that you include the Oracle JDBC libraries from the Dependency Analyzer. I assume this is probably the missing step since your are deploying to a Jar and not an app server where you would put the driver libraries in the app server classpath. -
Hanging problem with Oracle JDBC thin driver
Hi. We have an application running on top of WLS 6.1 accessing Oracle 8I with oracle's
JDBC thin driver. Under stress testing, it appears to hang sometimes. Thread dump
shows that many threads seem to be stuck at the same line of code in JDBC driver
(at oracle.sql.NUMBER._isPositive(NUMBER.java:2882)). Has anyone run into similar
issue? Any help is much appreciated.
"ExecuteThread: '1' for queue: 'default'" daemon prio=5 tid=0xe18960 nid=0xf wai
ting on monitor [0xb3680000..0xb36819d8]
at oracle.sql.NUMBER._isPositive(NUMBER.java:2882)
at oracle.sql.NUMBER._fromLnxFmt(NUMBER.java:2953)
at oracle.sql.NUMBER.toBigDecimal(NUMBER.java:557)
at oracle.sql.NUMBER.bigDecimalValue(NUMBER.java:1872)
at oracle.jdbc.dbaccess.DBConversion.NumberBytesToBigDecimal(DBConversion.ja
va:1771)
at oracle.jdbc.driver.OracleStatement.getBigDecimalValue(OracleStatement.jav
a:3357)
at oracle.jdbc.driver.OracleStatement.getObjectValue(OracleStatement.java:41
66)
at oracle.jdbc.driver.OracleStatement.getObjectValue(OracleStatement.java:41
23)
at oracle.jdbc.driver.OracleResultSetImpl.getObject(OracleResultSetImpl.java
:401)
at weblogic.jdbc.jts.ResultSet.getObject(ResultSet.java:268)
at weblogic.jdbc.rmi.internal.ResultSetImpl.getObject(ResultSetImpl.java:592
at weblogic.jdbc.rmi.internal.ResultSetStraightReader.getObject(ResultSetStr
aightReader.java:198)
at weblogic.jdbc.rmi.SerialResultSet.getObject(SerialResultSet.java:682)
"ExecuteThread: '6' for queue: 'default'" daemon prio=5 tid=0x6d93a8 nid=0x14
wa
iting on monitor [0xb3180000..0xb31819d8]
at oracle.sql.NUMBER._isPositive(NUMBER.java:2882)
at oracle.sql.NUMBER._fromLnxFmt(NUMBER.java:2953)
at oracle.sql.NUMBER.toBigDecimal(NUMBER.java:557)
at oracle.sql.NUMBER.bigDecimalValue(NUMBER.java:1872)
at oracle.jdbc.dbaccess.DBConversion.NumberBytesToBigDecimal(DBConversion.ja
va:1771)
at oracle.jdbc.driver.OracleStatement.getBigDecimalValue(OracleStatement.jav
a:3357)
at oracle.jdbc.driver.OracleStatement.getObjectValue(OracleStatement.java:41
66)
at oracle.jdbc.driver.OracleStatement.getObjectValue(OracleStatement.java:41
23)
at oracle.jdbc.driver.OracleResultSetImpl.getObject(OracleResultSetImpl.java
:401)
at weblogic.jdbc.jts.ResultSet.getObject(ResultSet.java:268)
at weblogic.jdbc.rmi.internal.ResultSetImpl.getObject(ResultSetImpl.java:592
at weblogic.jdbc.rmi.internal.ResultSetStraightReader.getObject(ResultSetStr
aightReader.java:198)
at weblogic.jdbc.rmi.SerialResultSet.getObject(SerialResultSet.java:682)Try get the latest thin driver from oracle and place it in the beginning of
the classpath in the server startup script to use it. This seems like a
oracle thin driver bug, the newer driver might help.
sree
"Andrew Dong" <[email protected]> wrote in message
news:[email protected]...
>
Hi. We have an application running on top of WLS 6.1 accessing Oracle 8Iwith oracle's
JDBC thin driver. Under stress testing, it appears to hang sometimes.Thread dump
shows that many threads seem to be stuck at the same line of code in JDBCdriver
(at oracle.sql.NUMBER._isPositive(NUMBER.java:2882)). Has anyone run intosimilar
issue? Any help is much appreciated.
"ExecuteThread: '1' for queue: 'default'" daemon prio=5 tid=0xe18960nid=0xf wai
ting on monitor [0xb3680000..0xb36819d8]
at oracle.sql.NUMBER._isPositive(NUMBER.java:2882)
at oracle.sql.NUMBER._fromLnxFmt(NUMBER.java:2953)
at oracle.sql.NUMBER.toBigDecimal(NUMBER.java:557)
at oracle.sql.NUMBER.bigDecimalValue(NUMBER.java:1872)
atoracle.jdbc.dbaccess.DBConversion.NumberBytesToBigDecimal(DBConversion.ja
va:1771)
atoracle.jdbc.driver.OracleStatement.getBigDecimalValue(OracleStatement.jav
a:3357)
atoracle.jdbc.driver.OracleStatement.getObjectValue(OracleStatement.java:41
66)
atoracle.jdbc.driver.OracleStatement.getObjectValue(OracleStatement.java:41
23)
atoracle.jdbc.driver.OracleResultSetImpl.getObject(OracleResultSetImpl.java
:401)
at weblogic.jdbc.jts.ResultSet.getObject(ResultSet.java:268)
atweblogic.jdbc.rmi.internal.ResultSetImpl.getObject(ResultSetImpl.java:592
atweblogic.jdbc.rmi.internal.ResultSetStraightReader.getObject(ResultSetStr
aightReader.java:198)
atweblogic.jdbc.rmi.SerialResultSet.getObject(SerialResultSet.java:682)
>
"ExecuteThread: '6' for queue: 'default'" daemon prio=5 tid=0x6d93a8nid=0x14
wa
iting on monitor [0xb3180000..0xb31819d8]
at oracle.sql.NUMBER._isPositive(NUMBER.java:2882)
at oracle.sql.NUMBER._fromLnxFmt(NUMBER.java:2953)
at oracle.sql.NUMBER.toBigDecimal(NUMBER.java:557)
at oracle.sql.NUMBER.bigDecimalValue(NUMBER.java:1872)
atoracle.jdbc.dbaccess.DBConversion.NumberBytesToBigDecimal(DBConversion.ja
va:1771)
atoracle.jdbc.driver.OracleStatement.getBigDecimalValue(OracleStatement.jav
a:3357)
atoracle.jdbc.driver.OracleStatement.getObjectValue(OracleStatement.java:41
66)
atoracle.jdbc.driver.OracleStatement.getObjectValue(OracleStatement.java:41
23)
atoracle.jdbc.driver.OracleResultSetImpl.getObject(OracleResultSetImpl.java
:401)
at weblogic.jdbc.jts.ResultSet.getObject(ResultSet.java:268)
atweblogic.jdbc.rmi.internal.ResultSetImpl.getObject(ResultSetImpl.java:592
atweblogic.jdbc.rmi.internal.ResultSetStraightReader.getObject(ResultSetStr
aightReader.java:198)
atweblogic.jdbc.rmi.SerialResultSet.getObject(SerialResultSet.java:682)
>
> -
Ssl with Oracle jdbc thin driver on weblogic 9.2
http://www.oracle.com/technology/products/weblogic/howto/jdbcssl/index.html
http://www.oracle.com/technology/tech/java/sqlj_jdbc/pdf/wp-oracle-jdbc_thin_ssl_2007.pdf
I had already created the ssl-jdbc connections for Weblogic 9.2 with Oracle 10.2.0.3.0 based on the documents above.
My questions
1. the connections are not using the desired ports. The TCP listener is using 1521, and TCPS listener is using 1522, and 2484. However the connections do not use the configured ports. Is it normal?
2. If using the unassigned port is the normal case, where can I limit the port range?
3. How to prove the connections are in SSL?1. the connections are not using the desired ports. The TCP listener is using 1521, and TCPS listener is using 1522, and 2484. However the connections do not use the configured ports. Is it normal? It is normal.
2. If using the unassigned port is the normal case, where can I limit the port range? I still have no idea.
3. How to prove the connections are in SSL? No idea, too. -
Modifiy and maximize performance of Oracle JDBC driver
Hello all,
due to some boring errors I'm trying to modify and maximize my JDBC driver for oracle connection... in particular I've two questions:
1. to substitute oracle driver with a newer version you have simply to upgrade the JDBC driver in $ODI_HOME/drivers/ORACLE or you have to add/modify the file named DriverRefV3.xml in sunopsis.zip. In particular I've checked DriverRefV3.xml but there's not reference to the file used for oracle connection so I do not know if ODI is using the ojdbc5.jar updated present in ODI_HOME/drivers/ORACLE
2. Oracle JDBC driver supports some properties as inactivity-timeout. Usually these are related to connection pool opened to the database. I want to change these properties...it's possible?
Thanks
StefanoHi Stefano ,
If you have only 1 Oracle JDBC driver ie. ojdbc5.jar in $ODI_HOME/drivers the ODI have to use that driver only (provided you are using correct JDK for that driver )
DriverRefV3.xml is for listing down the driver in the JDBC connection URL
Unless and until you have the driver in $ODI_HOME/drivers , DriverRefV3.xml will not help you.
Have no idea about timeout setting in JDBC .
If you find answer then it will be very helpful if you can share the same in this forum .
Thanks,
Sutirtha -
GetObject(int, Map) not working with oracle JDBC
I'm using Oracle and I'd like to get Date fields as Timestamps since an Oracle date column includes time. I'm trying to use getObject(int, Map) to map the types to Java objects, but it's not working. This is my code:
public static final HashMap oracleMap = new HashMap();
static{
try{
oracleMap.put( "DATE", Class.forName("java.sql.Timestamp") );
oracleMap.put( "NUMBER", Class.forName("java.math.BigDecimal") );
oracleMap.put( "VARCHAR2", Class.forName("java.lang.String") );
oracleMap.put( "CLOB", Class.forName("java.sql.Clob") );
oracleMap.put( "LONG", Class.forName("java.lang.String") );
}catch(Exception e){
IllegalStateException ise = new IllegalStateException("Oracle type mapping failed.");
ise.initCause(e);
throw ise;
}And
BASE.println("rs.getClass().getName(): "+rs.getClass().getName());
BASE.println("rs.getMetaData().getColumnTypeName(i): "+rs.getMetaData().getColumnTypeName(i));
if(rs.getClass().getName().startsWith("oracle")) valObj = rs.getObject(i, DOMTools.oracleMap);
else valObj = rs.getObject(i);
BASE.println("valObj.getClass().getName(): "+valObj.getClass().getName());Here's a snippet of my output that illustrates the code not working:
rs.getClass().getName(): oracle.jdbc.driver.OracleResultSetImpl
rs.getMetaData().getColumnTypeName(i): DATE
valObj.getClass().getName(): java.sql.Date
Anyone know if this is a driver issue? Anyone had luck doing this with Oracle?
Thanks.Well, I'd like it to be java.sql.Timestamp instead of
java.sql.Date. My actual type is an oracle "DATE".
Are you saying the Map key for this would be
"TIMESTAMP" and that by default it maps to
java.sql.Date? Doesn't seem like that makes sense.I am saying that "TIMESTAMP" is not an oracle value but is instead a JDBC value. Thus it is up to to the driver, not you, to determine what oracle types map to the JDBC type. -
CLassCastException with oracle.jdbc.driver.OracleCallableStatement
Hello,
I get a ClassCastException when I try to execute a Stored Procedure with WL6.1
and the JDriver.
I have a servlet who intanciate a Bean and call to his execute() method in this
way:
Context ctx = null;
Hashtable ht = new Hashtable();
Connection conn = null;
ht.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
try {
ctx = new InitialContext(ht);
javax.sql.DataSource ds = (javax.sql.DataSource)ctx.lookup(connPool);
conn = ds.getConnection();
conn.setAutoCommit(true);
SvcEmpEstObt empEstObt = new SvcEmpEstObt();
empEstObt.setMaxRows(100);
empEstObt.setConnection(conn);
//Get parameters from Http Get and set the JB
empEstObt.setEmpRut(request.getParameter("rut"));
empEstObt.setEmpTimeStamp(request.getParameter("timestamp"));
//Execute Service
empEstObt.execute();
/* ********* the execute() method of the jb is listed here */
public int execute() throws ClassNotFoundException, SQLException{
intreturnedRows = 0;
try {if (connection == null){
try {Class.forName(driver);
} catch (ClassNotFoundException e) {
System.err.println("ClassNotFoundException: " + e);
throw e;
connection = DriverManager.getConnection(url, user, password);
row = -1;
srv_message = String.valueOf(maxRows);
String sp = "{call SvcEmpEstObt_Pkg.SvcEmpEstObt(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)}";
oracle.jdbc.driver.OracleCallableStatement procout = (oracle.jdbc.driver.OracleCallableStatement)
connection.prepareCall(sp); // The exception is here
procout.registerOutParameter(1, Types.VARCHAR);
procout.setString(1, srv_message);
procout.setString(2, empRut);
procout.setString(3, empTimeStamp);
procout.registerOutParameter(4, Types.VARCHAR);
procout.registerOutParameter(5, Types.VARCHAR);
procout.registerOutParameter(6, Types.INTEGER);
int elemSqlType = OracleTypes.INTEGER;
int elemMaxLen = 0;
procout.registerIndexTableOutParameter(7, maxRows, elemSqlType, elemMaxLen);
elemSqlType = OracleTypes.VARCHAR;
elemMaxLen = 30;
// register the OUT parameter
procout.registerIndexTableOutParameter(8, maxRows, elemSqlType, elemMaxLen);
elemSqlType = OracleTypes.VARCHAR;
elemMaxLen = 21;
// register the OUT parameter
procout.registerIndexTableOutParameter(9, maxRows, elemSqlType, elemMaxLen);
elemSqlType = OracleTypes.INTEGER;
elemMaxLen = 0;
// register the OUT parameter
procout.registerIndexTableOutParameter(10, maxRows, elemSqlType, elemMaxLen);
// execute the call
procout.execute();
sqlWarning = procout.getWarnings();
srv_message = procout.getString(1);
returnStatus = new Integer(srv_message.substring(0,1)).intValue();
dagMessage = new DagMessage();
dagMessage.oracleMessage(srv_message);
// access the value using JDBC default mapping
empEstTitulo = procout.getString(4);
empEstUniv = procout.getString(5);
empEstNivel = procout.getInt(6);
curCodigo = (BigDecimal[]) procout.getPlsqlIndexTable(7);
curNombre = (String[]) procout.getPlsqlIndexTable(8);
curFecha = (String[]) procout.getPlsqlIndexTable(9);
curDuracion = (BigDecimal[]) procout.getPlsqlIndexTable(10);
// close the statement
procout.close();
if (curCodigo == null) {
return 0;
} else {
return curCodigo.length;
} catch (SQLException e) {
SQLException ex = e;
System.err.println("\n--- SQLException caught ---\n");
while (ex != null) {
System.err.println("Message: " + ex.getMessage ());
System.err.println("SQLState: " + ex.getSQLState ());
System.err.println("ErrorCode: " + ex.getErrorCode ());
ex = ex.getNextException();
System.out.println("");
throw e;
Does Someone has an idea why it happens ?Hans,
Could you give us the whole text of exception?
Regards,
Slava Imeshev
"Hans" <[email protected]> wrote in message
news:[email protected]...
>
It Works! Thanx a lot ....
I was working with a previous version of my App ... I fixed the problemand now
i can Cast to weblogic.jdbc.vendor.oracle.OracleCallableStatement,
But ...
I get the following Exception:
SQL Exception:
registerIndexTableOutParameter is not supported by the
underlying JDBC driver weblogic.jdbc.pool.Connection
What I need to do ?
/* this is what i`m trying to make */
weblogic.jdbc.vendor.oracle.OracleCallableStatement procout =(weblogic.jdbc.vendor.oracle.OracleCallableStatement)
connection.prepareCall(sp);
procout.registerOutParameter(1, Types.VARCHAR);
procout.setString(1, srv_message);
procout.setString(2, empRut);
procout.setString(3, empTimeStamp);
procout.registerOutParameter(4, Types.VARCHAR);
procout.registerOutParameter(5, Types.VARCHAR);
procout.registerOutParameter(6, Types.INTEGER);
int elemSqlType = OracleTypes.INTEGER;
int elemMaxLen = 0;
procout.registerIndexTableOutParameter(7, maxRows, elemSqlType,elemMaxLen);
>
elemSqlType = OracleTypes.VARCHAR;
elemMaxLen = 30;
// register the OUT parameter
procout.registerIndexTableOutParameter(8, maxRows, elemSqlType,elemMaxLen);
>
elemSqlType = OracleTypes.VARCHAR;
elemMaxLen = 21;
// register the OUT parameter
procout.registerIndexTableOutParameter(9, maxRows, elemSqlType,elemMaxLen);
>
elemSqlType = OracleTypes.INTEGER;
elemMaxLen = 0;
// register the OUT parameter
procout.registerIndexTableOutParameter(10, maxRows, elemSqlType,elemMaxLen);
>
>
"Hans" <[email protected]> wrote:
Thanx Slava,
But I have the same problem again...
I replace oracle.jdbc.driver.OracleCallableStatement with
weblogic.jdbc.vendor.oracle.OracleCallableStatement
and I get the same ClassClastException in
weblogic.jdbc.vendor.oracle.OracleCallableStatement procout =
(weblogic.jdbc.vendor.oracle.OracleCallableStatement)
connection.prepareCall(sp);
Any ideas ??
"Slava Imeshev" <[email protected]> wrote:
Hi Hans,
You can not cast returned object to
oracle.jdbc.driver.OracleCallableStatement
when accessing oracle db via connection pool.
It can be casted to weblogic.jdbc.vendor.oracle.OracleCallableStatement.
Here is a list of methods supported by this interface:
void clearParameters() throws java.sql.SQLException;
void registerIndexTableOutParameter(int i, int j, int k, int l) throws
java.sql.SQLException;
void registerOutParameter(int i, int j, int k, int l) throws
java.sql.SQLException;
java.sql.ResultSet getCursor(int i) throws java.sql.SQLException;
java.io.InputStream getAsciiStream(int i) throws
java.sql.SQLException;
java.io.InputStream getBinaryStream(int i) throwsjava.sql.SQLException;
java.io.InputStream getUnicodeStream(int i) throwsjava.sql.SQLException;
>>>
Regards,
Slava Imeshev
"Hans" <[email protected]> wrote in message
news:[email protected]...
Hello,
I get a ClassCastException when I try to execute a Stored Procedurewith
WL6.1
and the JDriver.
I have a servlet who intanciate a Bean and call to his execute()
method
in
this
way:
Context ctx = null;
Hashtable ht = new Hashtable();
Connection conn = null;
ht.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFact
or
y");
try {
ctx = new InitialContext(ht);
javax.sql.DataSource ds = (javax.sql.DataSource)ctx.lookup(connPool);
conn = ds.getConnection();
conn.setAutoCommit(true);
SvcEmpEstObt empEstObt = new SvcEmpEstObt();
empEstObt.setMaxRows(100);
empEstObt.setConnection(conn);
file://Get parameters from Http Get and set the JB
empEstObt.setEmpRut(request.getParameter("rut"));
empEstObt.setEmpTimeStamp(request.getParameter("timestamp"));
file://Execute Service
empEstObt.execute();
/* ********* the execute() method of the jb is listed here */
public int execute() throws ClassNotFoundException, SQLException{
intreturnedRows = 0;
try {if (connection == null){
try {Class.forName(driver);
} catch (ClassNotFoundException e) {
System.err.println("ClassNotFoundException: " + e);
throw e;
connection = DriverManager.getConnection(url, user, password);
row = -1;
srv_message = String.valueOf(maxRows);
String sp = "{call SvcEmpEstObt_Pkg.SvcEmpEstObt(?, ?, ?, ?, ?, ?,?, ?,
oracle.jdbc.driver.OracleCallableStatement procout =(oracle.jdbc.driver.OracleCallableStatement)
connection.prepareCall(sp); // The exception is here
procout.registerOutParameter(1, Types.VARCHAR);
procout.setString(1, srv_message);
procout.setString(2, empRut);
procout.setString(3, empTimeStamp);
procout.registerOutParameter(4, Types.VARCHAR);
procout.registerOutParameter(5, Types.VARCHAR);
procout.registerOutParameter(6, Types.INTEGER);
int elemSqlType = OracleTypes.INTEGER;
int elemMaxLen = 0;
procout.registerIndexTableOutParameter(7, maxRows, elemSqlType,elemMaxLen);
elemSqlType = OracleTypes.VARCHAR;
elemMaxLen = 30;
// register the OUT parameter
procout.registerIndexTableOutParameter(8, maxRows, elemSqlType,elemMaxLen);
elemSqlType = OracleTypes.VARCHAR;
elemMaxLen = 21;
// register the OUT parameter
procout.registerIndexTableOutParameter(9, maxRows, elemSqlType,elemMaxLen);
elemSqlType = OracleTypes.INTEGER;
elemMaxLen = 0;
// register the OUT parameter
procout.registerIndexTableOutParameter(10, maxRows, elemSqlType,elemMaxLen);
// execute the call
procout.execute();
sqlWarning = procout.getWarnings();
srv_message = procout.getString(1);
returnStatus = new Integer(srv_message.substring(0,1)).intValue();
dagMessage = new DagMessage();
dagMessage.oracleMessage(srv_message);
// access the value using JDBC default mapping
empEstTitulo = procout.getString(4);
empEstUniv = procout.getString(5);
empEstNivel = procout.getInt(6);
curCodigo = (BigDecimal[]) procout.getPlsqlIndexTable(7);
curNombre = (String[]) procout.getPlsqlIndexTable(8);
curFecha = (String[]) procout.getPlsqlIndexTable(9);
curDuracion = (BigDecimal[]) procout.getPlsqlIndexTable(10);
// close the statement
procout.close();
if (curCodigo == null) {
return 0;
} else {
return curCodigo.length;
} catch (SQLException e) {
SQLException ex = e;
System.err.println("\n--- SQLException caught ---\n");
while (ex != null) {
System.err.println("Message: " + ex.getMessage ());
System.err.println("SQLState: " + ex.getSQLState ());
System.err.println("ErrorCode: " + ex.getErrorCode ());
ex = ex.getNextException();
System.out.println("");
throw e;
Does Someone has an idea why it happens ? -
Problem with Oracle jdbc driver and jdk1.4
Hi
I have some java code which uses Oracle jdbc driver.
This code works with java 1.1.8, 1.2 & 1.3 but not with java 1.4 !
I have that exception :
java.sql.SQLException: The Network Adapter could not establish the connection
at oracle/jdbc/dbaccess/DBError.check_error(DBError.java)
at oracle/jdbc/driver/OracleConnection.<init>(OracleConnection.java)
at oracle/jdbc/driver/OracleDriver.getConnectionInstance(OracleDriver.java)
at oracle/jdbc/driver/OracleDriver.connect(OracleDriver.java)
at java/sql/DriverManager.getConnection(DriverManager.java:529)
at java/sql/DriverManager.getConnection(DriverManager.java:179)
at SimpleQuery.<init>(SimpleQuery.java:21)
at SimpleQuery.main(SimpleQuery.java:56)
when I try a getConnection...
I've tried all the jdbc drivers provided by Oracle, but it's still the same problem !
Any Idea ?
ThanksHave you tried the drivers shipped with Oracle9i Db R2? they should work against JDK 1.4
Kuassi
Hi
I have some java code which uses Oracle jdbc driver.
This code works with java 1.1.8, 1.2 & 1.3 but not with java 1.4 !
I have that exception :
java.sql.SQLException: The Network Adapter could not establish the connection
at oracle/jdbc/dbaccess/DBError.check_error(DBError.java)
at oracle/jdbc/driver/OracleConnection.<init>(OracleConnection.java)
at oracle/jdbc/driver/OracleDriver.getConnectionInstance(OracleDriver.java)
at oracle/jdbc/driver/OracleDriver.connect(OracleDriver.java)
at java/sql/DriverManager.getConnection(DriverManager.java:529)
at java/sql/DriverManager.getConnection(DriverManager.java:179)
at SimpleQuery.<init>(SimpleQuery.java:21)
at SimpleQuery.main(SimpleQuery.java:56)
when I try a getConnection...
I've tried all the jdbc drivers provided by Oracle, but it's still the same problem !
Any Idea ?
Thanks -
Connection issues with Oracle-JDBC
Using the Universe Design Tool in BOE 4.4 to create an Oracle-JDBC connection.
Issue: Test Connection fails for JDBC connection to production Oracle database.
Getting error:
“DBD: ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
IBM AIX RISC System/6000 Error: 2: No such file or directory”
Things to note:
There are three entries in the tnsnames.ora file (a prod entry, a dev entry and a test entry). I can successfully create the JDBC connections for the test and dev entries, but not prod.
I can go to Designer in another server (our BOE 3.5 server in a different environment) and create all three Oracle-JDBC connections.
The Oracle middleware is the same between the two servers (11g) and the tnsnames.ora files are identical.
The prod database is up (it would definitely be known if it were down).
Very confused on this one. Any help would be appreciated.It appears that the SAP tool “Universe Design Tool” wants to have a fully qualified (host.parent domain.org) Net Service name for this particular connection as I was able to successfully JDBC connect to our production Oracle database. The other two databases didn't need it and the Oracle SQL Developer (which uses JDBC for connections) didn’t need a fully qualified name for our production server either. In any case, it appears to be working now.
-
HELP!!! Cannot deploy J2EE application with Oracle JDBC driver...
Hi,
I am writing a J2EE application which (in theory, at least)
connects to an Oracle 9i database.
I have written a simple Java test app utilising only the
java.sql package classes (e.g. Connection, ResultSet) to directly
connect to the database. As long as the classes12.zip is in the
CLASSPATH it works fine.
Now I have written an Enterprise application (SessionBean,
Remote and Home interface and Client) which I am attempting to
deploy via deploytool.
If I include just the client jar and EJB jar in the application
it deploys okay but when I run the application (using runclient)
it produces the following error:
java.lang.NoClassDefFoundError: oracle/jdbc/OracleDriver
(It is nested within other error output but that is the core
issue).
However if I try to include the JAR libraries into the app
(classes12.jar and nls_charset.jar from $ORACLE_HOME/jdbc/lib),
then I get the following output from deploytool when I hit the
"deploy" (or "redeploy") button:
Deployment error: invalid entry compressed size
(expected 14411 but got 14580 bytes)
Can someone please tell me what is going on???
How can I deploy the J2EE application including the Oracle
JDBC Driver???
My only other option at the moment is to place all the function-
-ality in the client and not use the J2EE framework.
Any help is greatly appreciated.
Regards,
Ben New
Leftclick Software Development
[email protected]OK Ben,
I admit I'm a bit confused. Let me see if I understand where you're
coming from.
You have written a J2EE application that includes a session bean,
correct? If so, your session bean needs to be deployed to an EJB
container. What container are you using? The Oracle 9i database
has an embedded EJB container which (theoretically) you can use.
However, as far as I know, Oracle recommends you use OC4J as the
EJB container. So again I ask, what EJB container are you using?
If, as you say, you are new to EJB, then I think you should
immediately start working wiht OC4J as your EJB container.
Did you look at the tutorial link I gave in my previous post? It
explains -- step by step -- how to create, deploy and run a J2EE
application using OC4J as the EJB container. It also has links to
introductory material for people without little knowledge of J2EE
and EJB.
I have 9iAS Enterprise Edition and 8.1.7.1.0 database server (and
OC4J) installed on my SUN machine. I cannot find any of the
utilities you mention -- "j2eeadmin","runclient" or "deploytool".
What Oracle software have you installed? What are the versions?
What platform are you using?
A J2EE application (according to the specification from SUN)
consists of modules. A module can either be a client module or an
EJB module. A client module can either be a java application client
or a web-based client (servlet or JSP). A J2EE application usually
contains one client module and one EJB module. A J2EE application
needs to be deployed to a J2EE container.
Hopefully the J2EE picture is becoming clearer. I think you need
to read some introductory material regarding J2EE if you intend
to become proficient at it.
I feel that you are under the impression that a J2EE application
is a glorified JDBC application. It isn't (as far as I'm aware).
Good Luck,
Avi. -
Problems with Oracle jdbc Driver
Hi... I'm trying to connect to my Oracle Database and I get the folowing error:
"package oracle.jdbc.driver does not exist"
I have installed Oracle 9.1.0.2 Database...
The value of the Classpath variable is:
".;c:\oracle\ora92\jdbc\lib"
What could be the problem???...
Thanks in advance.-
Alberto.-Are you building your application from the command line? Or using a GUI? GUI's will frequently overwrite your CLASSPATH environment variable...
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC -
Slow performance with oracle http server connecting weblogic
I have a performance issue while using Oracle HTTP server as a proxy with weblogic server. It takes 10-15 seconds to pass the requests.
I also received the error related to SSL in my error logs even though i havent configured the SSL.
please find the error received in the OHS error logs
nzos handshake error, nzos_Handshake returned 28862
NZ Library Error: SSL IO error [Hint: the client stop the connection unexpectedly]
And please find a request information from the access log files.
Fri May 28 09:24:48 2010 <5944127503148828> getPooledConn: No more connections in the pool for Host[114.57.162.39] Port[6499] SecurePort[6499]
Fri May 28 09:24:48 2010 <5944127503148828> general list: trying connect to '114.57.162.39'/6499/6499 at line 3082 for '/fed/user/authnoam?refid=id-ixGFItkxw4Nt4l3wlz4W9sWR-ao-'
Fri May 28 09:25:00 2010 <5944127503148828> SSL is not configured for this connection
Fri May 28 09:25:00 2010 <5944127503148828> Local Port of the socket is 4472
it is visible that the while it is doing "general list trying to connect to" it takes a long time
Any pointers are highly appreciated.Shannon,
The OHS + Weblogic installation, just means you will have an admin server, with Enterprise Manager that can manage your OHS instances. That being said:
1 - You don't have to extend any domain, since the only thing OHS will need is an Admin Server with Enterprise Manager.
2 - I (myself, I don't speak for Oracle here) have a personal preference of having stand alone OHS. If you don't know how to work with httpd.conf and mod_wl.conf, I would suggest installing a separate domain only for it, that way you can keep the weblogic turned off, and turn it on only when you need to edit any configuration.
Thanks
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