User Defined Type - Array bind Query very slow

Hi.
I have following Problem. I try to use Oracle Instant Client 11 and ODP.NET to pass Arrays in SELECT statements as Bind Parameters. I did it, but it runs very-very slow. Example:
- Inittial Query:
SELECT tbl1.field1, tbl1.field2, tbl2.field1, tbl2.field2 ... FROM tbl1
LEFT JOIN tbl2 ON tbl1.field11=tbl2.field0
LEFT JOIN tbl3 ON tbl2.field11=tbl3.field0 AND tbll1.field5=tbl3.field1
...and another LEFT JOINS
WHERE
tbl1.field0 IN ('id01', 'id02', 'id03'...)
this query with 100 elements in "IN" on my database takes 3 seconds.
- Query with Array bind:
in Oracle I did UDT: create or replace type myschema.mytype as table of varchar2(1000)
than, as described in Oracle Example I did few classes (Factory and implementing IOracleCustomType) and use it in Query,
instead of IN ('id01', 'id02', 'id03'...) I have tbl1.field0 IN (select column_value from table(:prmTable)), and :prmTable is bound array.
this query takes 190 seconds!!! Why? I works, but the HDD of Oracle server works very hard, and it takes too long.
Oracle server we habe 10g.
PS: I tried to use only 5 elements in array - the same result, it takes also 190 seconds...
Please help!

I recommend you generate an explain plan for each query and post them here. Based on what you have given the following MAY be happening:
Your first query has as static IN list when it is submitted to the server. Therefore when Oracle generates the execution plan the CBO can accurately determine it based on a KNOWN set of input parameters. However the second query has a bind variable for this list of parameters and Oracle has no way of knowing at the time the execution plan is generated what that list contains. If it does not know what the list contains it cannot generate the most optimal execution plan. Therefore I would guess that it is probably doing some sort of full table scan (although these aren't always bad, remember that!).
Again please post the execution plans for each.
HTH!

Similar Messages

How to set user defined type in binded parameter to NULL

Hello
I have a type in PL/SQL MY_ARRAY which is a array of VARCHAR2
and I want to call a procedure MY_PROC in OCCI, the procedure takes MY_ARRAY as its IN parameter, but I want to set the parameter to null. How can I do that?
"begin MY_PROC(:1); end;"
I tried setNull(1,OCCIVECTOR), but failed. and If i use MY_PROC(null), the compiler just tells me that SELF NULL parameter not allowed or sth like this.
any one can help me?

Have you found a solution ? I have pretty much the same issue with passing a NULL SDO_GEOMETRY to a stored procedure and I did this with a call to setNull( paramIndex, oracle::occi::OCCIPOBJECT ) on the statement object, but it also fails with the followins error: "ORA-24360: Type Descriptor Object not specified for Object Bind/Define"

Querying user-defined types

I have a table in which one of the columns is a user-defined datatype:
SQL> describe my_table
USER_DATA    MYTYPEThe type "MYTYPE" is a simple object that contains one field: a CLOB called MESSAGE:
SQL> describe mytype
Name       Null?    Type
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I know that for CLOB and BLOB fields, SQL Developer will let me double click the value and view the contents. But for a user-defined type like this that contains a field, I cannot browse into the data members of the type. I find myself wanting to do something like a "select user_data.message from my_table", but this is not valid syntax. Is there a way to query a specific data member of this user-defined type with the rest of the columns in the table so that I can be shown the CLOB member instead of a representation of the object? If not, is there a way to configure SQL Developer to allow me to browse the data members of user-defined types? TOAD has a feature like this but I would like to use SQL Developer exclusively and this is one table I must work with regularly.

Just to back up a previous post:
sqldeveloper 1.5.5.59.69 against 10.2 (Express Edition)
desc r2
input:
select r.message from r2; --fails
select r2.r.message from r2; --fails
select this.r.message from r2 this; --succeeds
output:
desc r2
Name Null Type
R REALLY_CLOB()
Error starting at line 1 in command:
select r.message from r2
Error at Command Line:1 Column:7
Error report:
SQL Error: ORA-00904: "R"."MESSAGE": invalid identifier
00904. 00000 - "%s: invalid identifier"
*Cause:
*Action:
Error starting at line 2 in command:
select r2.r.message from r2
Error at Command Line:2 Column:7
Error report:
SQL Error: ORA-00904: "R2"."R"."MESSAGE": invalid identifier
00904. 00000 - "%s: invalid identifier"
*Cause:
*Action:
R.MESSAGE
(CLOB)
(CLOB)
(CLOB) start of clob
3 rows selected

View Object with User Defined Type input

I am trying to use a View Object with a query that requires a user defined object as an input parameter.
I have the query working with a PreparedStatement, but would like to use a View Object.
When I use the PreparedStatement, I prepare the user defined type data like this:
// get the data into an object array
Object[] wSRecObjArr = wSRec.getObjectArray();
// set up rec descriptor
StructDescriptor WSRecDescriptor = StructDescriptor.createDescriptor("WS_REC",conn);
// populate the record struct
STRUCT wSRecStruct = new STRUCT(WSRecDescriptor,conn,wSRecObjArr);
Then I can use this in the PreparedStatement like this:
OraclePreparedStatement stat = null;
ResultSet rs = null;
stat = (OraclePreparedStatement)conn.prepareStatement("Select test_pkg.test_function(?) FROM DUAL");
stat.setSTRUCT(1, wSRecStruct);
rs = stat.executeQuery();
I would like to do the same process with a View Object instead of the PreparedStatement.
My question is "How do I create the input objects"?
I obtain the View Object from the Application Module using findViewObject(). I don't actually have a connection object to pass into the StructDescriptor.createDescriptor method.
I have tried just using Java Object Arrays (Object[]) to pass the data, but that gave an error:
oracle.jbo.SQLStmtException: JBO-27122: SQL error during statement preparation.
Any help or pointers are greatly appreciated.
Thank you.
Edited by: 942120 on May 1, 2013 8:45 AM
Edited by: 942120 on May 1, 2013 8:46 AM
Edited by: 942120 on May 1, 2013 9:05 AM
Edited by: 942120 on May 1, 2013 9:06 AM

Custom domains are the way to go.
When I try to pass custom domains that represent my user defined types - it works.
However, one of the functions requires a table of a user defined type be passed in.
I tried creating a domain of the table type. It forces me to add a field during creation (in JDEV), so I tried adding a field of type Array of Element of the domain representing the user defined type.
I populate the table by setting the field I created, but the table is empty in PL/SQL (TEST_TAB.COUNT = 0).
I also tried passing the oracle.jbo.domain.Array object, but that produced an error:
java.sql.SQLException: ORA-06553: PLS-306: wrong number or types of arguments in call
I also tried passing Object[], but that produced an error:
oracle.jbo.SQLStmtException: JBO-27122: SQL error during statement preparation.
How do I properly create, and pass an domain that represents a table of a user defined type?
When I use a OraclePreparedStatement, I can pass a oracle.sql.ARRAY using stat.setARRAY.
Thank you for the help you have provided, and any future advice.
JDEV 10.1.2.3
JDBC 10.2.0.5
Edited by: 942120 on May 13, 2013 7:13 AM
Edited by: 942120 on May 13, 2013 7:16 AM

How to convert Collection to user defined type in db

Hello All,
I am using Apex 4.1.0.00.32 and Oracle 11g.
I have page process to store the user selected rows (keys) in a collection as follows:
declare
   temp varchar2(4000);
   vrow number;
   begin
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      IF (apex_application.g_f32.COUNT > 0) THEN
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           LOOP
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       END IF;
end;I need to call a database function which takes an user defined type VC_ARRAY_1 defined as:
create or replace TYPE "VC_ARRAY_1" AS TABLE OF VARCHAR2(4000) How do I convert the collection to VC_ARRAY_1, so that I can call the db function?
Thanks,
Rose

Hi Joel,
Yes, the collection contains the person_ids. But, I am selecting from a function which returns a pipelined table. In Oracle Database, few user defined types and functions are defined as given below:
create or replace TYPE "VC_ARRAY_1"   as table of varchar2(4000)
create or replace FUNCTION   "GET_ARRAY" ( p_array IN   varchar2, p_delimiter   IN   varchar2 default ':') return VC_ARRAY_1 PIPELINED
create or replace TYPE   "AFFECTED_INDIVIDUAL" as object("PERSONKEY" VARCHAR2(4000), "FIRST_NAME" VARCHAR2(4000), "LAST_NAME" VARCHAR2(4000)… more variables)
create or replace TYPE "AFF_IND_TAB" as table of "AFFECTED_INDIVIDUAL"
create or replace FUNCTION GET_AFF_INDIVIDUALS(personKeys IN VC_ARRAY_1) return AFF_IND_TAB PIPELINEDThe function GET_AFF_INDIVIDUALS uses several tables and returns pipelined table. In Apex, I have a SQL query that feeds the Report query.
select * from table (get_aff_individuals(get_array(:F_SELECTED_PERSONS, ',')))The application item F_SELECTED_PERSONS is a varchar2 that contains comma separated person ids. I want to replace the application item with Apex collection. Initially, I thought that I can convert the apex collection to an array of vc_array_1.
Thanks for your time and help.
Rose

Access result set in user define type of table

here is the situation. I have a stored procedure that dequeues messages of a AQ and passes them as an OUT parameter in a collection of a user defined type. The same type used to define the queues. The java code executes properly but seems like we don't/can't access the result set. We don't receive any erros but don't know how to access the results. I've included relevant parts of the problem.
I know this should be doable but........Can someone please tell us what we are doing wrong....thanks in advance.
-----create object type
create type evt_ot as object(
table_name varchar(40),
table_data varchar(4000));
---create table of object types.
create type msg_evt_table is table of evt_ot;
----create queue table with object type
begin
DBMS_AQADM.CREATE_QUEUE_TABLE (
Queue_table => 'etlload.aq_qtt_text',
Queue_payload_type => 'etlload.evt_ot');
end;
---create queues.
begin
DBMS_AQADM.CREATE_QUEUE (
Queue_name => 'etlload.aq_text_que',
Queue_table => 'etlload.aq_qtt_text');
end;
Rem
Rem Starting the queues and enable both enqueue and dequeue
Rem
EXECUTE DBMS_AQADM.START_QUEUE (Queue_name => 'etlload.aq_text_que');
----create procedure to dequeue an array and pass it OUT using msg_evt_table ---type collection.
create or replace procedure test_aq_q (
i_array_size in number ,
o_array_size out number ,
text1 out msg_evt_table) is
begin
DECLARE
message_properties_array dbms_aq.message_properties_array_t :=
dbms_aq.message_properties_array_t();
msgid_array dbms_aq.msgid_array_t;
dequeue_options dbms_aq.dequeue_options_t;
message etlload.msg_evt_table;
id pls_integer := 0;
retval pls_integer := 0;
total_retval pls_integer := 0;
ctr number :=0;
havedata boolean :=true;
java_exp exception;
no_messages exception;
pragma EXCEPTION_INIT (java_exp, -24197);
pragma exception_init (no_messages, -25228);
BEGIN
DBMS_OUTPUT.ENABLE (20000);
dequeue_options.wait :=0;
dequeue_options.correlation := 'event' ;
id := i_array_size;
-- Dequeue this message from AQ queue using DBMS_AQ package
begin
retval := dbms_aq.dequeue_array(
queue_name => 'etlload.aq_text_que',
dequeue_options => dequeue_options,
array_size => id,
message_properties_array => message_properties_array,
payload_array => message,
msgid_array => msgid_array);
text1 := message;
o_array_size := retval;
EXCEPTION
WHEN java_exp THEN
dbms_output.put_line('exception information:');
WHEN no_messages THEN
havedata := false;
o_array_size := 0;
end;
end;
END;
----below is the java code....
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Struct;
import oracle.jdbc.driver.OracleCallableStatement;
import oracle.jdbc.driver.OracleTypes;
public class TestOracleArray {
     private final String SQL = "{call etlload.test_aq_q(?,?,?)}";//array size, var name for return value, MessageEventTable
     private final String driverClass = "oracle.jdbc.driver.OracleDriver";
     private final String serverName = "OurServerName";
     private final String port = "1500";
     private final String sid = "OurSid";
     private final String userId = "OurUser";
     private final String pwd = "OurPwd";
     Connection conn = null;
     public static void main(String[] args){
          TestOracleArray toa = new TestOracleArray();
          try {
               toa.go();
          } catch (InstantiationException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (IllegalAccessException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (ClassNotFoundException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (SQLException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
     private void go() throws InstantiationException, IllegalAccessException, ClassNotFoundException, SQLException{
          Class.forName(driverClass).newInstance();
          String url = "jdbc:oracle:thin:@"+serverName+":"+port+":"+sid;
          conn = DriverManager.getConnection(url,userId,pwd);
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          stmt.setInt(1, 50);
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          stmt.registerOutParameter(2, OracleTypes.NUMERIC);
          //register out 2
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          * rs.close();
          * Tried all sorts of combinations of getXXXX(1);
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          Struct myObject = (Struct)stmt.getObject(1);
          stmt.close();
          conn.close();
}

Hi,
Sorry but I'd refer you to the following sections (and code samples/snippets) in my book:
Mapping User-Defined Object Types (AD) to oracle.sql.STRUCT in section 3.3, shows how to pass user defined types as IN, OUT,IN/OUT
JMS over Streams/AQ in the Database: shows how to consume AQ
message paylod in section 4.2.4
CorporateOnine, in section 17.2, show how to exchanges user defined type objects b/w AQ and JMS
All these will hopefully help you achieve what you are trying to do.
Kuassi

Notification with user defined type results in PLS-00306: wrong number..

I created a user defined type TLogMessage:
CREATE OR REPLACE TYPE TLogMessage AS OBJECT
module VARCHAR2(4000),
severity NUMBER,
message VARCHAR2(4000)
I also created a multi-consumer queue using this type as payload.
My callback procedure in the package PK_SYST_LOGMESSAGE is defined as follows:
     PROCEDURE DefaultLoggerCallback(
          context          RAW,
          reginfo          SYS.AQ$_REG_INFO,
          descr          SYS.AQ$_DESCRIPTOR,
          payload          RAW,
          payload1     NUMBER
Finally, I registered the callback procedure as follows:
          DBMS_AQADM.ADD_SUBSCRIBER(
               queue_name      => QUEUE_NAME,
               subscriber      => SYS.AQ$_AGENT(
                                        name => 'default_logger',
                                        address => NULL,
                                        protocol => NULL
          DBMS_AQ.REGISTER(
               SYS.AQ$_REG_INFO_LIST(
                    SYS.AQ$_REG_INFO(
                         name          => QUEUE_NAME || ':default_logger',
                         namespace     => DBMS_AQ.NAMESPACE_AQ,
                         callback     => 'plsql://MTDX.PK_SYST_LOGMESSAGE.DefaultLoggerCallback',
                         context          => HEXTORAW('FF')
               1
However, when I put a message in the queue using this procedure:
     PROCEDURE LogMessage(
          pModule          VARCHAR2,
          pSeverity     NUMBER,
          pMessage     VARCHAR2
     IS
          vMessage               TLogMessage;
          vEnqueueOptions          DBMS_AQ.ENQUEUE_OPTIONS_T;
          vMsgProperties          DBMS_AQ.MESSAGE_PROPERTIES_T;
          vMessageHandle          RAW(16);
     BEGIN
          vMessage := TLogMessage(module => pModule, severity => pSeverity, message => pMessage);
          vEnqueueOptions.visibility := DBMS_AQ.IMMEDIATE;
          vMsgProperties.correlation := pModule;
          vMsgProperties.priority := -pSeverity;
          -- Enqueue the message to all subscribers
          DBMS_AQ.ENQUEUE(
               queue_name               => QUEUE_NAME,
               enqueue_options          => vEnqueueOptions,
               message_properties     => vMsgProperties,
               payload                    => vMessage,
               msgid                    => vMessageHandle
     EXCEPTION
          WHEN no_subscribers THEN
               -- No subscribers on the queue; ignore
               NULL;
     END;
I can see the message in the queue, by querying the queue view. I can also see that Oracle tried to call my callback procedure, because in the trace file I see the following:
*** 2009-02-13 08:52:25.000
*** ACTION NAME:() 2009-02-13 08:52:24.984
*** MODULE NAME:() 2009-02-13 08:52:24.984
*** SERVICE NAME:(SYS$USERS) 2009-02-13 08:52:24.984
*** SESSION ID:(609.3387) 2009-02-13 08:52:24.984
Error in PLSQL notification of msgid:4F7962FEDD3B41FA8D9538F0B38FCDD1
Queue :"MTDX"."LOGMESSAGE_QUEUE"
Consumer Name :DEFAULT_LOGGER
PLSQL function :MTDX.PK_SYST_LOGMESSAGE.DefaultLoggerCallback
: Exception Occured, Error msg:
ORA-00604: Fout opgetreden bij recursief SQL-niveau 2.
ORA-06550: Regel 1, kolom 7:
PLS-00306: Onjuist aantal of type argumenten in aanroep naar 'DEFAULTLOGGERCALLBACK'..
ORA-06550: Regel 1, kolom 7:
PL/SQL: Statement ignored.
So.. how many parameters does Oracle expect, and of what type? Is there any way to find out? What is wrong with my code?

Ok, found it... I had defined the last parameter of the callback procedure as 'payload1' (that is: 'payload-ONE') instead of 'payloadl' ('payload-ELL'). It all works like a charm now.
What a way to waste two whole days!

Add column to user defined type based on existing table

Hello guys,
I am trying to compile my function which returns a user defined type based on existing table. Throughout the initializing process though my query returns one additional column - SCORE(1). Here is my package:
create or replace
PACKAGE STAFF_AGENCY_PKG AS
TYPE TYPE_SEEKER_TABLE IS TABLE OF TOSS.SEEKER%ROWTYPE;
FUNCTION GET_SEEKERS(IN_KEYWORD IN VARCHAR2)
RETURN TYPE_SEEKER_TABLE PIPELINED;
END STAFF_AGENCY_PKG;
create or replace
PACKAGE BODY STAFF_AGENCY_PKG
AS
FUNCTION GET_SEEKERS(IN_KEYWORD IN VARCHAR2)
RETURN TYPE_SEEKER_TABLE PIPELINED
IS
R_TBL TYPE_SEEKER_TABLE; -- to be returned
BEGIN
FOR R IN(
SELECT Seeker.SEEKER_ID,
Seeker.FIRSTNAME,
Seeker.LASTNAME,
Seeker.NATIONALITY,
Seeker.ISELIGIBLE,
Seeker.BIRTHDATE,
Seeker.ISRECIEVEEMAILS,
Seeker.HIGHESTDEGREE,
Seeker.ETHNICITY,
Seeker.GENDER,
Seeker.ISDISABILITY,
Seeker.DISABILITY,
Seeker.CV,
Seeker.PASSWORD,
Seeker.PREFFERED_CITY,
SEEKER.EMAIL,
SEEKER.JOB_PREFERENCES_ID,
SCORE(1)
FROM SEEKER Seeker
WHERE CONTAINS(CV, '<query>
<textquery lang="ENGLISH" grammar="context">' ||
GET_RELATED_CATEGORIES(IN_KEYWORD) ||
'</textquery>
<score datatype="INTEGER"/>
</query>', 1) > 0
LOOP
PIPE ROW(R); --Error(38,10): PLS-00382: expression is of wrong type
END LOOP;
RETURN;
END GET_SEEKERS;
END STAFF_AGENCY_PKG;
How do I need to amend my user type in order to suffice?
Oracle Release 11.2.0.1.0
Many thanks in advance!

>
How do I need to amend my user type in order to suffice?
>
You will need to create two new TYPEs. One that has all of the columns of the TOSS.SEEKER table and the new SCORE column and then a TYPE that is a table of the first type.
See the Example 12-22 Using a Pipelined Table Function For a Transformation in the PL/SQl language reference
http://docs.oracle.com/cd/B28359_01/appdev.111/b28370/tuning.htm#i53120
Here is the first part
-- Define the ref cursor types and function
CREATE OR REPLACE PACKAGE refcur_pkg IS
TYPE refcur_t IS REF CURSOR RETURN employees%ROWTYPE;
TYPE outrec_typ IS RECORD (
    var_num    NUMBER(6),
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    var_char2 VARCHAR2(30));
TYPE outrecset IS TABLE OF outrec_typ;
FUNCTION f_trans(p refcur_t)
      RETURN outrecset PIPELINED;
END refcur_pkg;
CREATE OR REPLACE PACKAGE BODY refcur_pkg IS
FUNCTION f_trans(p refcur_t)
   RETURN outrecset PIPELINED IS
    out_rec outrec_typ;
    in_rec p%ROWTYPE;
BEGINModify
TYPE outrec_typ IS RECORD (
    var_num    NUMBER(6),
    var_char1 VARCHAR2(30),
    var_char2 VARCHAR2(30));
TYPE outrecset IS TABLE OF outrec_typ;to include all of the columns you need. Unfortunately you will have to manually list all of the columns of the TOSS.SEEKER table. If you expect to need this same structure in other places you should create them as SQL types instead of PL/SQL types.
This example should be enough to show you how to change your code to do something similar.

Dose oracle.sql.ArrayDescriptor support the user defined type in package?

Hi folks:
I get a obstacle in calling stored procedure by using JDBC driver (ojdbc14.jar).
I have the following code:
create or replace package xxx AS
type var_table is table of varchar2(50);
procedure(parameter in var_table);
end xxx;
When I use the jdbc driver try to create a type for
oracle.sql.ArrayDescriptor arrayDes = oracle.sql.ArrayDescriptor.createDescriptor( "var_table ",connection);
The SQLException is thrown out like those:
Invalid name pattern:user_schema. var_table
So, my question is : Dose oracle.sql.ArrayDescriptor not support the user defined type in package? And I also tried to define such type by using sql "create xxxx" outside of package, then there is no SQLException.
Hopefully for your response and suggestion.Thanks...

To my knowledge, the Oracle JDBC driver does not support using the ArrayDescriptor for array data types (varray or nested table) that are defined inside of a package. The same is true for StructDescriptor as well. If you want to use array and object data types, you must define them outside of a package. Then you'll be able to use the descriptors in your JDBC programs.

Is there any way to use a For Each Loop for each property of an User Defined Type?

Is there any way to use a For Each Loop for each property of an User Defined Type? That would be very handy!
Jorge Barbi Martins ([email protected])

Alas, no, not in VBA.
Regards, Hans Vogelaar (http://www.eileenslounge.com)

Issue in passing Oracle User Defined Types to PL SQL from Websphere Applica

HI,
I am facing an issue when trying to pass Oracle collection object(User Defined Types) from Java to PL SQL. The issue happens inside J2EE application which is running inside Websphere Application Server 6.x. My database is Oracle 10g and i am using ojdbc1.4.jar as thin driver.
The issue is that when i pass the Oracle Object from java side, the attribute values of the collection objects at the Oracle PL SQL side is coming as empty. I have tried the same java code in a standalone application and it works fine. The issue happens only when the application is running inside WAS.
Anybody has any idea how to pass Oracle User Defined Types from WAS 6.x server to Oracle PL SQL?

Andy Bowes wrote:
Hi
I am using WebLogic 8.14 & Oracle 9i with thin JDBC driver.
Our application needs to perform the same DB operation for every item in a Java Collection. I cannot acheive the required performance using the standard Prepare & Execute loop and so I am looking to push the whole collection to Oracle in a single invocation of a Stored Procedure and then loop on the database.
Summary of Approach:
In the Oracle database, we have defined a Object Type :
CREATE OR REPLACE
TYPE MYTYPE AS OBJECT
TxnId VARCHAR2(40),
Target VARCHAR2(20),
Source VARCHAR2(20),
Param1 VARCHAR2(2048),
Param2 VARCHAR2(2048),
Param3 VARCHAR2(2048),
Param4 VARCHAR2(2048),
Param5 VARCHAR2(2048),
and we have defined a collection of these as:
CREATE OR REPLACE
TYPE MYTYPE_COLLECTION AS VARRAY (100) OF MYTYPE
There is a stored procedure which takes one of these collections as an input parameter and I need to invoke these from within my code.
I am having major problems when I attempt to get the ArrayDescriptor etc to allow me to create an Array to pass to the stored procedure. I think this is because the underlying Oracle connection is wrapped by WebLogic.
Has anyone managed to pass an array to an Oracle Stored procedure on a pooled DB connection?
Thanks
AndyHi. Here's what I suggest: First please get the JDBC you want to work in a
small standalone program that uses the Oracle thin driver directly. Once
that works, show me the JDBC code, and I will see what translation if
any is needed to make it work with WLS. Will your code be running in
WebLogic, or in an external client talking to WebLogic?
Also, have you tried the executeBatch() methods to see if you can
get the performance you want via batches?
Joe

Query very slow!

I have Oracle 9i and SUN OS 5.8
I have a Java application that have a query to the Customer table. This table has 2.000.000 of records and I have to show its in pages (20 record each page)
The user query for example the Customer that the Last Name begin with O. Then the application shows the first 20 records with this condition and order by Name.
Then I have to create 2 querys
1)
SELECT id_customer,Name
FROM Customers
WHERE Name like 'O%'
ORDER BY id_customer
But when I proved this query in TOAD it take long to do it (the time consuming was 15 minutes)
I have the index in the NAME field!!
Besides, if the user want to go to the second page the query is executed again. (The java programmers said me that)
What is your recommendation to optimize it????? I need to obtain the information in
few seconds.
2)
SELECT count(*) FROM Customers WHERE NAME like 'O%'
I have to do this query because I need to known How many pages (20 records) I need to show.
Example with 5000 records I have to have 250 pages.
But when I proved this query in TOAD it take long to do it (the time consuming was 30 seconds)
What is your recommendation to optimize it????? I need to obtain the information in
few seconds.
Thanks in advance!

This appears to be a dulpicate of a post in the Query very slow! forum.
Claudio, since the same folks tend to read both forums, it is generally preferred that you post questions in only one forum. That way, multiple people don't spend time writing generally equivalent replies.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

Selecting Columns with User Defined Types... in PHP

I've looked all over google and this forum and can't find anything about this... here's what I've got:
a User Defined Type:
CREATE TYPE "ADDRESS" AS OBJECT (
ADDRESS VARCHAR2(256),
COUNTRY VARCHAR2(256),
STATE VARCHAR2(256),
SUBURB VARCHAR2(256),
TOWNCITY VARCHAR2(256)
and it is used in a column in one of my tables:
CREATE TABLE "SUPPLIERS" (
"ID" NUMBER,
"USER_ID" NUMBER,
"NAME" VARCHAR2(50),
"ADDRESS" "ADDRESS"
so that column "address" is of type "address". I am then able to insert a row using:
INSERT INTO "SUPPLIERS" VALUES(1,1,'name',ADDRESS('address','country','state','suburb','town city'));
and that all works as expected. I can select the data using iSqlPlus and get the result I expect;
ADDRESS('address', 'country', 'state', 'suburb', 'town city')
So here's the problem. I cannot reterieve the data as expected, using PHP. If I make a select statement on the table that excludes the ADDRESS column I get the results as expected. If the ADDRESS column is included I get an error when fetching the row:
ORA-00932: inconsistent datatypes: expected CHAR got ADT
I'm assuming this is because the the cell cannot be cast to a string. How can I select the row so that the ADDRESS column is returned as an object? Can I even? If I can't, I don't see the use of Object Data Types... :(
I have found that I can select a field of the type using:
SELECT t.ADDRESS.TOWNCITY FROM SUPPLIERS t;
But this is not ideal, because the whole idea was that I could (potentially) change the format for, in my example, an address, and not need to alter my SQL statements.
Any ideas??

PHP OCI8 can currently only bind simple types. Here are two possible
solutions.
-- cj
create or replace type mytype as object (myid number, mydata varchar2(20));
show errors
create or replace type mytabletype as table of mytype;
show errors
create or replace procedure mycreatedata1(outdata out mytabletype) as
begin
outdata := mytabletype();
for i in 1..10 loop
outdata.extend;
outdata(i) := mytype(i, 'some name'||i);
end loop;
end;
show errors
-- Turn the data into a ref cursor (but PHP OCI8 doesn't use prefetching for ref cursors)
create or replace procedure mywrapper1(rcemp out sys_refcursor) as
data mytabletype;
begin
mycreatedata1(data);
open rcemp for select * from table(cast(data as mytabletype));
end mywrapper1;
show errors
-- Turn the data into two collections
-- This might be faster than returning a ref cursor because you can
-- use oci_bind_array_by_name() on each parameter.
create or replace procedure mywrapper2(pempno out dbms_sql.NUMBER_table, pename out dbms_sql.VARCHAR2_table) as
data mytabletype;
begin
mycreatedata1(data);
select myid, mydata
bulk collect into pempno, pename
from table(cast(data as mytabletype));
end mywrapper2;
show errorsThen in PHP you could do:
// Use a Ref Cursor
$s = oci_parse($c, "begin mywrapper1(:myid); end;");
$rc = oci_new_cursor($c);
oci_bind_by_name($s, ':myid', $rc, -1, OCI_B_CURSOR);
oci_execute($s);
oci_execute($rc);
oci_fetch_all($rc, $res);
var_dump($res);
// Use Collections
$s = oci_parse($c, "begin mywrapper2(:myid, :mydata); end;");
oci_bind_array_by_name($s, ":myid", $myid, 10, -1, SQLT_INT);
oci_bind_array_by_name($s, ":mydata", $mydata, 10, 20, SQLT_CHR);
oci_execute($s);
var_dump($myid);
var_dump($mydata);

How to execute function takes user defined type parameters as input &output

Hi All,
I want to execute a function which takes user defined type as input & output parameters. But i don't know how to execute that function in pl/sql statements.
CREATE TYPE T_INPUT AS OBJECT
USER          VARCHAR2(255),
APPLICATION     VARCHAR2(255),
REFERENCE          VARCHAR2(30)
) NOT FINAL;
CREATE TYPE T_ID UNDER T_INPUT
E_ID                    VARCHAR2 (50),
CODE                    VARCHAR2 (3),
SERVICE                    VARCHAR2 (10),
C_TYPE                    VARCHAR2 (1)
) NOT FINAL;
CREATE TYPE T_OUTPUT AS OBJECT
     R_STATUS               NUMBER(10),
     E_DESC_LANG_1          VARCHAR2(1000),
     E_DESC_LANG_2          VARCHAR2(1000),
     A_REFERENCE          VARCHAR2(30)
) NOT FINAL;
CREATE TYPE T_INFO UNDER T_OUTPUT
E_INFO XMLTYPE
CREATE FUNCTION Get_Dtls
I_DETAILS IN T_ID,
O_DETAILS OUT T_INFO
RETURN NUMBER AS
END;
Here
1. T_ID is an input parameter which is a combination of T_ID + T_INPUT,
2. T_INFO is an output parameter which is a combination of T_INFO + T_OUTPUT.
Here i'll assign the T_ID values.
--- T_INPUT values
USER          = "admin";
APPLICATION     = "test";
REFERENCE     = "null";
---- T_ID values
E_ID               = "1234";
CODE               = "TTT";
SERVICE               = "NEW";
C_TYPE = "P";
Now i want to execute Get_Dtls function with T_ID,T_INFO parameters in pl/sql statements.
I want to catch the E_INFO value from T_INFO type.
How can i Do this ?
Pls Help. Thanxs in advance.
Anil.

I am very new to this. New to Oracle, PL/SQL, OO programming or testing?
set serveroutput on
declare
tst_obj ctype;
begin
tst_obj := pkg.proc(11);
dbms_output.put_line('id='||tst_obj.id||'::code='||tst_obj.code||'::usage='||tst_obj.usage);
end;
/Generally I disapprove of the use of DBMS_OUTPUT (for just about anything) but it is sufficient to demonstrate the basic principle.
Really you should start using proper testing practices, ideally with an automated test harness like QUTE.
Cheers, APC
Blog : http://radiofreetooting.blogspot.com/

Confused: Returning Simple User Defined Type (non-built-in)

Hi, hope you can straighten out a confused newbie! This is probably laughingly simple if you know how...
I just want my weblogic workshop web service to return an ordinary record-style object to my static client. I'm not sure what to do, I've already tried a few approaches...
If I use two services deployed on Weblogic Server everything works great. Weblogic server must handle the seriali/deseriali - zation for you.
So I tried to use the java proxy downloaded from the test page, but it doesn't contain all the classes needed.
I read the Weblogic help files which said to use autotype, which compiles but gives class cast exceptions running. I tried both automatic and manual with same error. Trying to import to Workshop gave me a "no handler defined error".
And I bought a book from Amazon about J2EE and Weblogic but it does not include a section on user defined types!
Am I supposed to use XMLBeans or something??? Please help!
Regards, Ry.

> but the requirement is not allowing me to do either with ref cursor or with
returning clause. Because, in .Net development area , we are restricted for
using Returning clause.
The following is a Bad Idea (tm) where PL/SQL is used to "return data" to the caller, be that via PL/SQL record types or collection types..Net   ---[calls]-------> PL/SQL
PL/SQL ---[calls]-------> SQL
PL/SQL <--[data]--------- SQL
PL/SQL [buffers] data
.Net   <--[buffer data]-- PL/SQLWhy?
Because PL/SQL is a poor choice for a buffer as the db cache buffer used by the SQL engine is a very advance and sophisticated cache and core to the Oracle RDBMS.
Ain't no way you can do that better in PL/SQL than SQL.
What is the typical client-server approach in Oracle?.Net   ---[calls]-------> PL/SQL
PL/SQL [constructs ref cursor]
.Net   <--[ref cursor]-- PL/SQL
.Net   --[fetches]----> SQL [using ref cursor]A ref cursor is a pointer the "compiled and executable SQL program" in Oracle that PL/SQL constructed for .Net in this case. Each FETCH call using the ref cursor pointer, executes the cursor "program" and returns the next row (or set of rows when using bulk processing) to the client.

User Defined Type - Array bind Query very slow

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