One to many merge/concat using pl/sql

Problem Description:
For every STAGEDBAGTAB.CLS_FIRSTPART, there's can be more than one values in LONGSTRINGELEMENTTAB.LSE_STRING. The column LONGSTRINGELEMENTTAB.LSE_INDEX gives out the indicator as to how many values there can be.
Now, I need to take the 1st value of STAGEDBAGTAB.CLS_FIRSTPART and megre/concat it with all the corresponding values of LONGSTRINGELEMENTTAB.LSE_STRING.
CREATE TABLE STAGEDBAGTAB
ROOTID VARCHAR2(40 BYTE) NOT NULL,
CLS_REST VARCHAR2(40 BYTE),
CLS_FIRSTPART VARCHAR2(3000 BYTE),
SB_CRC NUMBER(20),
SB_KEY VARCHAR2(768 BYTE) NOT NULL,
SB_OVERWRITTEN NUMBER(1) NOT NULL,
SB_CONTAINER VARCHAR2(40 BYTE),
SB_ACTIVE NUMBER(1),
SB_PURGESTATE INTEGER NOT NULL,
SB_TIMECREATED DATE,
SB_TIMEUPDATED DATE
CREATE TABLE LONGSTRINGELEMENTTAB
ROOTID VARCHAR2(40 BYTE) NOT NULL,
MYID VARCHAR2(40 BYTE) NOT NULL,
LVID VARCHAR2(40 BYTE),
LSE_INDEX INTEGER,
LSE_STRING VARCHAR2(765 BYTE),
LSE_DEFAULTINGSETBITS INTEGER
Query used:
SELECT Sta1.sb_Key, Sta1.sb_CRC,Sta1.cls_FirstPart, Lon2.lse_Index, Lon2.lse_String
FROM StagedBagTab Sta1, LongStringElementTab Lon2
WHERE Sta1.ls_Strings = Lon2.lvId AND Sta1.rootId = Lon2.rootId
AND (Sta1.sb_OverWritten = 0
AND Sta1.sb_ComplexTypeInstanceName <> 'itemdelete'
AND Sta1.sb_Container IN ('1w52exgc.fi'))
AND (Sta1.sb_Active = 1)
AND (Sta1.sb_PurgeState = 0)
UNION ALL
SELECT Sta101.sb_Key, Sta101.sb_CRC, Sta101.sb_ComplexTypeInstance, Sta101.cls_FirstPart, -1, ' '
FROM StagedBagTab Sta101
WHERE (Sta101.cls_Rest IS NULL
AND Sta101.sb_OverWritten = 0
AND Sta101.sb_ComplexTypeInstanceName <> 'itemdelete'
AND Sta101.sb_Container IN ('1w52exgc.fi'))
AND (Sta101.sb_Active = 1)
AND (Sta101.sb_PurgeState = 0)
ORDER BY 2 ASC, 1 ASC, 5 ASC;
Sample Output: the above query gives me all the records, i need but the column STAGEDBAGTAB.CLS_FIRSTPART is repeated, as there are more than one corresponding values of LONGSTRINGELEMENTTAB.LSE_STRING.
I need only 1 value of STAGEDBAGTAB.CLS_FIRSTPART with all corresponding values of LONGSTRINGELEMENTTAB.LSE_STRING. Possibly, merged in some temporary variable etc.
If someone can point me in the right direction, that would be great help.
Thanks a lot in advance.

What version of Oracle are you using? If you're using 11.2, you can use the LISTAGG analytic function
1 select listagg( dname, ',' ) WITHIN GROUP( order by dname )
2* from dept
SQL> /
LISTAGG(DNAME,',')WITHINGROUP(ORDERBYDNAME)
ACCOUNTING,OPERATIONS,RESEARCH,SALESto do something like
listagg( lse_string, ',' ) within group( order by lse_string )In earlier versions, Tom has a STRAGG user defined analytic function that can be used on askTom.
Justin

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V_JOB_NO NUMBER;
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V_NEXT_DATE DATE;
V_NAME VARCHAR2(30);
V_DELIMITER VARCHAR2(1);
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                         WHERE A.NAME = B.MV_OBJECT_NAME
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BEGIN
FOR I IN MV_LIST
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NULL;
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---------------------------------------------------------------------------------------------------------------------

Justin,
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V_LAST_REFRESH DATE;
V_MV_NAME VARCHAR2(30);
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BEGIN
FOR I IN MV_LIST
LOOP
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UPDATE DISCO_MV_REFRESH_ORDER A SET A.LAST_REFRESH = V_LAST_REFRESH
WHERE A.MV_OBJECT_NAME = V_MV_NAME;
COMMIT;
UPDATE DISCO_MV_REFRESH_ORDER A SET A.REFRESH_STATUS = V_STATUS
WHERE A.MV_OBJECT_NAME = V_MV_NAME;
COMMIT;
END LOOP;
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V_FAILURES NUMBER;
V_JOB_NO NUMBER;
V_START_DATE DATE := SYSDATE;
V_NEXT_DATE DATE;
V_NAME VARCHAR2(30);
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FOR I IN MV_LIST
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V_NAME := I.MV_OBJECT_NAME;
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JPA - One to Many persistence issue

Hi All,
We are facing an issue with one to many relationship persistence using JPA.
We have a one to many relationship between Company and Personnel. When A personnel is created, the company(the parent in the relationship) is selected and that needs to be persisted along with the new Personnel Entity
Find below the Entity Definitions and the code snippet to persist the Entity into the database.
Entity - Company:
@OneToMany(mappedBy = "company", cascade=CascadeType.ALL, fetch = javax.persistence.FetchType.EAGER)
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PersonnelPK personnelPK = new PersonnelPK(personnelName, this.appInfoEJB.getSiteId());
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The personnel entity is being persisted into the database but the company is not getting associated with it. (The company value remains blank)
We are using the Toplink JPA Implementation with Glassfish application server. Any pointers would be greatly appreciated.
Thanks and Regards,
GK
Edited by: user12055063 on Oct 13, 2009 10:05 AM
Edited by: user12055063 on Oct 13, 2009 10:05 AM

Hi All,
Since PERSONNEL and COMPANY both had the SITEID column, we renamed the column in both tables to check if that solves the issue. However, a null company value is still being persisted into the database.
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CREATE TABLE COMPANY
COMPANYNAME VARCHAR(255) NOT NULL,
COMPANYSITEID VARCHAR (255) NOT NULL,
PARENTNAME VARCHAR(255),
PARENTSITEID VARCHAR(255),
ADDRESS VARCHAR(255),
PRIMARY KEY (COMPANYNAME, COMPANYSITEID),
FOREIGN KEY (PARENTNAME, PARENTSITEID) REFERENCES COMPANY (COMPANYNAME, COMPANYSITEID)
CREATE TABLE PERSONNEL
PERSONNELNAME VARCHAR(255) NOT NULL,
PERSONNELSITEID VARCHAR(255) NOT NULL,
COMPANY VARCHAR(255),
EMAIL VARCHAR(255),
TITLE VARCHAR(255),
PRIMARY KEY (PERSONNELNAME, PERSONNELSITEID)
ALTER TABLE PERSONNEL
ADD CONSTRAINT PERCOMPANYCONS FOREIGN KEY (COMPANY, PERSONNELSITEID) REFERENCES COMPANY (COMPANYNAME, COMPANYSITEID);
The corresponding entity classes are as follows:
Personnel:
public class Personnel implements Serializable {
    private static final long serialVersionUID = 1L;
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    protected PersonnelPK personnelPK;
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Company:
public class Company implements Serializable {
    private static final long serialVersionUID = 1L;
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    protected CompanyPK companyPK;
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    private String address;
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    private Collection<Company> companyCollection;
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public ErrorCode createAndAssignPersonnel(String personnelName, String company, String email, String title, String user)
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INSERT INTO PERSONNEL (TITLE, EMAIL, PERSONNELSITEID, PERSONNELNAME) VALUES (?, ?, ?, ?)
bind => [, , JackOnSite, Tester]
In this case, the company field is not even added in the query.
On deleting the updatable, insertable attributes from the JoinColumns annotation as follows:
@JoinColumns({@JoinColumn(name = "COMPANY", referencedColumnName = "COMPANYNAME"), @JoinColumn(name = "PERSONNELSITEID", referencedColumnName = "COMPANYSITEID" )})
@ManyToOne
private Company company;The following query is generated:
Local Exception Stack:
Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0 (Build b58g-fcs (09/07/2007))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLSyntaxErrorException: Column name 'PERSONNELSITEID' appears more than once times in the column list of an INSERT statement.
Error Code: -1
Call: INSERT INTO PERSONNEL (TITLE, EMAIL, COMPANY, PERSONNELSITEID, PERSONNELSITEID, PERSONNELNAME) VALUES (?, ?, ?, ?, ?, ?)
bind => [, , Test New, JackOnSite, JackOnSite, Sesi]
Note that in this case, the company is being inserted into the query. However, the PERSONNELSITEID appears twice.
The company table has a foreign key reference to itself and we have tried testing this use case by dropping that constraint without any success.
We would greatly appreciate any pointers/suggestions.
Thanks and Regards,
GK

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Hello, hello,
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http://help.sap.com/saphelp_nw04/helpdata/en/64/ce4e886334ec4ea7c2712e11cc567c/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/64/ce4e886334ec4ea7c2712e11cc567c/frameset.htm
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>
Ameet Deshpande wrote:
> Dear All,
>
> Can any one please help us in using Native SQL statement in a JDBC receiver channel. The reason why I need to use Native SQL statement instead of standard XML structure is that I need to execute a dynamic SQL query in third party database system lke:-
>
> "
> Select Field1 Field2 from TABLE Where Field3 like "%Name'
> "
> I expect the the response in the form of XML file which I can pick up using synchornous interface as mentioned on help.sap.com:-
>
> http://help.sap.com/saphelp_nw04/helpdata/en/64/ce4e886334ec4ea7c2712e11cc567c/frameset.htm
> http://help.sap.com/saphelp_nw04/helpdata/en/64/ce4e886334ec4ea7c2712e11cc567c/frameset.htm
>
> The value for %Name can change dynamically according to the transaction and hence cannot be inluded as a KEY element in standard XLM structure,
>
> Hence I need to know:-
>
> 1. What message mapping I should use in case if I have to use Native SQL statement.
> 2.What operation mapping I should use in case if I have to use Native SQL statement.
> If guess correclty I may have to use Java mapping to do the above activities. Hence I want to know
> 3 .How do to go about it to do the Java mapping.
>
> Thanks
> Ameet
You can use a stored procedure, and call it from jdbc receiver adapter.
I also solve this issue, with a DBLookup in message mapping. You can refer to my blog, and this usefull 3d:
http://simonlesflex.wordpress.com/2010/12/07/pi-oracle-dblookup/
/people/alessandro.guarneri/blog/2006/03/27/sap-xi-lookup-api-the-killer
/people/siva.maranani/blog/2005/08/23/lookup146s-in-xi-made-simpler

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The solution is to have the Table Reference (FK -> PK) Constraints already available from the Database. So all you need is to pick from an available relationship.
From JDEV log into the HR / HR Schema and map the EMPLOYEES table. That table has such a Constraint.

Creating a text file using pl/sql

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<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by bhrigu nagal ([email protected]):
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utl_file.put_line(filehandler,'look masjdfgsd\n');
utl_file.fclose(filehandler);
exception when utl_file.invalid_path then
raise_application_error(-20023,'bhrigu ,chk the path');
end;
the errors
ERROR at line 1:
ORA-06510: PL/SQL: unhandled user-defined exception
ORA-06512: at "SYS.UTL_FILE", line 101
ORA-06512: at "SYS.UTL_FILE", line 157
ORA-06512: at line 4
if u know what this is please tell me
thanks bhrigu
<HR></BLOCKQUOTE>
U need :
1) To have UTL_FILE_DIR param in the init file of the instance with the same directory (don't forget to stop and restart the base)
2) Handled the exceptions listed in the utl_file package (Oracle_home\rdbms\admin\utlfile.sql) in your source.
3) Turn set serveroutput on in SQL*Plus.
Run your procedure and see the error message to debug.
Good luck
null

Crystal Report Many to One Query Config error when using DataSet.ReadXML me

When I build a dataset with this method numerous relations are automatically created. I then map these fields onto crystal reports with ADO.net data connection. However when I run the report the following error occurs:
CrystalDecisions.CrystalReports.Engine.InternalException: Cannot determine the queries necessary to get data for this report.Details:
This query cannot be performed. The link order requires many to one query configuration, which is not supported. Please rearrange the links.
If I remove the links (relations) i get duplicate data on the report. Is there any way to resolve this or a patch for the error?

Hello, Mervin;
Since you are using ADO.NET dataset, is it possible to get all of the fields you need in one SQL Query outside of Crystal Reports?
If that is possible, you can use that dataset to create an XML or XSD file to use as the structure for your report.
VB
'Using the full path to the .xml file, include the schema
dataSet.WriteXml("C:\temp\test.xml", XmlWriteMode.WriteSchema)
or
dataSet.WriteXmlSchema("c:\temp\testXML.xsd")
Now create a new report with the ADO.NET(XML) connection and point to either the XML or XSD you created. XML is useful because you can view data in the report designer for final formatting of the report.
Now there is only one datasource and no linking is required in Crystal Reports. That should resolve the one to many issue.
Another useful tool is to group on the many and place all the fields normally in the detail section into that group header. Suppress the Detail and Group footer sections. The Group Header will now look like a Detail section and each distinct value will only appear once. You can group on one field or a combination (using a formula field) to get the results you need. Test this to be sure you do not miss anything you want to see.
Elaine

Unable to read one-to-many relations using Hibernate

Hi,
I am trying with a very simple one-to-many relationship. When I am storing the objects, there are no problems. But when I am trying to read out the collection, it says invalid descriptor index. Please help.
Regards,
Hibernate version:
hibernate-3.1rc2
Mapping documents:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
     <class name="Parent">
          <id name="id">
               <generator class="identity"/>
          </id>
          <set name="children">
               <key column="parent_id"/>
               <one-to-many class="Child"/>
          </set>
     </class>
     <class name="Child">
          <id name="id">
               <generator class="identity"/>
          </id>
          <property name="name"/>
     </class>
</hibernate-mapping>
Code between sessionFactory.openSession() and session.close():
The Parent class:
public class Parent
     private Long id ;
     private Set children;
     Parent(){}
     public Long getId()
          return id;
     public void setId(Long id)
          this.id=id;
     public Set getChildren()
          return children;
     public void setChildren(Set children)
          this.children=children;
The Child class:
public class Child
     private Long id;
     private String name;
     Child(){}
     public Long getId()
          return id;
     private void setId(Long id)
          this.id=id;
     public String getName()
          return name;
     public void setName(String name)
          this.name=name;
The Main class:
public class PCManager
     public static void main(String[] args)
          PCManager mgr = new PCManager();
          List lt = null;
          if (args[0].equals("store"))
               mgr.createAndStoreParent(new HashSet(3));
          else if (args[0].equals("list"))
               mgr.listEvents();
          HibernateUtil.getSessionFactory().close();
     private void createAndStoreParent(HashSet s)
          HibernateUtil.getSessionFactory().getCurrentSession().beginTransaction();
          Parent p1 = new Parent();
          int size = 3;
          for (int i=size; i>0; i--)
               Child c = new Child();
               c.setName("Child"+i);
               s.add(c);
          p1.setChildren (s);
          Iterator elems = s.iterator();
          do {
               Child ch = (Child) elems.next();
               HibernateUtil.getSessionFactory().getCurrentSession().save(ch);
          }while(elems.hasNext());
          HibernateUtil.getSessionFactory().getCurrentSession().save(p1);
          HibernateUtil.getSessionFactory().getCurrentSession().getTransaction().commit();
     private void listEvents()
          HibernateUtil.getSessionFactory().getCurrentSession().beginTransaction();
          Parent result = (Parent) HibernateUtil.getSessionFactory().getCurrentSession().load(Parent.class, new Long(1));
          System.out.println("Id is :"+ result.getId());
          Set children = result.getChildren();
          Iterator elems = children.iterator();
          do {
               Child ch = (Child) elems.next();
               System.out.println("Child Name"+ ch.getName());
          }while(elems.hasNext());
          HibernateUtil.getSessionFactory().getCurrentSession().getTransaction().commit();
Full stack trace of any exception that occurs:
When I run with "hbm2ddl.auto" property as validate and trying to list the contents, I get the following out put.
C:\Documents and Settings\mirza\Desktop\hibernate-3.1rc2\MyHibernate>ant run -Da
ction=list
Buildfile: build.xml
clean:
[delete] Deleting directory C:\Documents and Settings\mirza\Desktop\hibernate
-3.1rc2\MyHibernate\bin
[mkdir] Created dir: C:\Documents and Settings\mirza\Desktop\hibernate-3.1rc
2\MyHibernate\bin
copy-resources:
[copy] Copying 4 files to C:\Documents and Settings\mirza\Desktop\hibernate
-3.1rc2\MyHibernate\bin
compile:
[javac] Compiling 5 source files to C:\Documents and Settings\mirza\Desktop\
hibernate-3.1rc2\MyHibernate\bin
run:
[java] 09:09:23,433 INFO Environment:474 - Hibernate 3.1 rc2
[java] 09:09:23,449 INFO Environment:489 - loaded properties from resource
hibernate.properties: {hibernate.cglib.use_reflection_optimizer=true, hibernate
.cache.provider_class=org.hibernate.cache.HashtableCacheProvider, hibernate.dial
ect=org.hibernate.dialect.SQLServerDialect, hibernate.max_fetch_depth=1, hiberna
te.jdbc.use_streams_for_binary=true, hibernate.format_sql=true, hibernate.query.
substitutions=yes 'Y', no 'N', hibernate.proxool.pool_alias=pool1, hibernate.cac
he.region_prefix=hibernate.test, hibernate.jdbc.batch_versioned_data=true, hiber
nate.connection.pool_size=1}
[java] 09:09:23,465 INFO Environment:519 - using java.io streams to persis
t binary types
[java] 09:09:23,465 INFO Environment:520 - using CGLIB reflection optimize
r
[java] 09:09:23,481 INFO Environment:550 - using JDK 1.4 java.sql.Timestam
p handling
[java] 09:09:23,559 INFO Configuration:1257 - configuring from resource: /
hibernate.cfg.xml
[java] 09:09:23,559 INFO Configuration:1234 - Configuration resource: /hib
ernate.cfg.xml
[java] 09:09:23,872 INFO Configuration:460 - Reading mappings from resourc
e: PCMapping.hbm.xml
[java] 09:09:24,013 INFO HbmBinder:266 - Mapping class: Parent -> Parent
[java] 09:09:24,045 INFO HbmBinder:266 - Mapping class: Child -> Child
[java] 09:09:24,045 INFO Configuration:1368 - Configured SessionFactory: n
ull
[java] 09:09:24,061 INFO Configuration:1014 - processing extends queue
[java] 09:09:24,061 INFO Configuration:1018 - processing collection mappin
gs
[java] 09:09:24,061 INFO HbmBinder:2233 - Mapping collection: Parent.child
ren -> Child
[java] 09:09:24,076 INFO Configuration:1027 - processing association prope
rty references
[java] 09:09:24,076 INFO Configuration:1049 - processing foreign key const
raints
[java] 09:09:24,155 INFO DriverManagerConnectionProvider:41 - Using Hibern
ate built-in connection pool (not for production use!)
[java] 09:09:24,170 INFO DriverManagerConnectionProvider:42 - Hibernate co
nnection pool size: 1
[java] 09:09:24,170 INFO DriverManagerConnectionProvider:45 - autocommit m
ode: false
[java] 09:09:24,170 INFO DriverManagerConnectionProvider:80 - using driver
: sun.jdbc.odbc.JdbcOdbcDriver at URL: jdbc:odbc:MySQL
[java] 09:09:24,170 INFO DriverManagerConnectionProvider:86 - connection p
roperties: {}
[java] 09:09:24,264 INFO SettingsFactory:77 - RDBMS: Microsoft SQL Server,
version: 08.00.0194
[java] 09:09:24,264 INFO SettingsFactory:78 - JDBC driver: JDBC-ODBC Bridg
e (SQLSRV32.DLL), version: 2.0001 (03.85.1117)
[java] 09:09:24,296 INFO Dialect:100 - Using dialect: org.hibernate.dialec
t.SQLServerDialect
[java] 09:09:24,311 INFO TransactionFactoryFactory:31 - Using default tran
saction strategy (direct JDBC transactions)
[java] 09:09:24,327 INFO TransactionManagerLookupFactory:33 - No Transacti
onManagerLookup configured (in JTA environment, use of read-write or transaction
al second-level cache is not recommended)
[java] 09:09:24,327 INFO SettingsFactory:125 - Automatic flush during befo
reCompletion(): disabled
[java] 09:09:24,327 INFO SettingsFactory:129 - Automatic session close at
end of transaction: disabled
[java] 09:09:24,343 INFO SettingsFactory:144 - Scrollable result sets: ena
bled
[java] 09:09:24,343 INFO SettingsFactory:152 - JDBC3 getGeneratedKeys(): d
isabled
[java] 09:09:24,343 INFO SettingsFactory:160 - Connection release mode: au
to
[java] 09:09:24,358 INFO SettingsFactory:184 - Maximum outer join fetch de
pth: 1
[java] 09:09:24,358 INFO SettingsFactory:187 - Default batch fetch size: 1
[java] 09:09:24,358 INFO SettingsFactory:191 - Generate SQL with comments:
disabled
[java] 09:09:24,358 INFO SettingsFactory:195 - Order SQL updates by primar
y key: disabled
[java] 09:09:24,358 INFO SettingsFactory:338 - Query translator: org.hiber
nate.hql.ast.ASTQueryTranslatorFactory
[java] 09:09:24,374 INFO ASTQueryTranslatorFactory:21 - Using ASTQueryTran
slatorFactory
[java] 09:09:24,374 INFO SettingsFactory:203 - Query language substitution
s: {no='N', yes='Y'}
[java] 09:09:24,374 INFO SettingsFactory:209 - Second-level cache: enabled
[java] 09:09:24,374 INFO SettingsFactory:213 - Query cache: disabled
[java] 09:09:24,374 INFO SettingsFactory:325 - Cache provider: org.hiberna
te.cache.HashtableCacheProvider
[java] 09:09:24,374 INFO SettingsFactory:228 - Optimize cache for minimal
puts: disabled
[java] 09:09:24,374 INFO SettingsFactory:233 - Cache region prefix: hibern
ate.test
[java] 09:09:24,405 INFO SettingsFactory:237 - Structured second-level cac
he entries: disabled
[java] 09:09:24,437 INFO SettingsFactory:257 - Echoing all SQL to stdout
[java] 09:09:24,452 INFO SettingsFactory:264 - Statistics: disabled
[java] 09:09:24,452 INFO SettingsFactory:268 - Deleted entity synthetic id
entifier rollback: disabled
[java] 09:09:24,452 INFO SettingsFactory:283 - Default entity-mode: POJO
[java] 09:09:24,593 INFO SessionFactoryImpl:155 - building session factory
[java] 09:09:24,938 INFO SessionFactoryObjectFactory:82 - Not binding fact
ory to JNDI, no JNDI name configured
[java] 09:09:24,954 INFO SchemaValidator:99 - Running schema validator
[java] 09:09:24,954 INFO SchemaValidator:107 - fetching database metadata
[java] 09:09:24,954 INFO Configuration:1014 - processing extends queue
[java] 09:09:24,954 INFO Configuration:1018 - processing collection mappin
gs
[java] 09:09:24,954 INFO Configuration:1027 - processing association prope
rty references
[java] 09:09:24,954 INFO Configuration:1049 - processing foreign key const
raints
[java] 09:09:24,985 WARN JDBCExceptionReporter:71 - SQL Error: 0, SQLState
: S1002
[java] 09:09:24,985 ERROR JDBCExceptionReporter:72 - [Microsoft][ODBC SQL S
erver Driver]Invalid Descriptor Index
[java] 09:09:25,001 ERROR SchemaValidator:129 - Error closing connection
[java] java.sql.SQLException: [Microsoft][ODBC SQL Server Driver]Invalid transaction state
[java] Initial SessionFactory creation failed.org.hibernate.exception.Gener
icJDBCException: could not get table metadata: Child
[java] java.lang.ExceptionInInitializerError
[java] at HibernateUtil.<clinit>(Unknown Source)
[java] at PCManager.listEvents(Unknown Source)
[java] at PCManager.main(Unknown Source)
[java] Caused by: org.hibernate.exception.GenericJDBCException: could not g
et table metadata: Child
[java] at org.hibernate.exception.SQLStateConverter.handledNonSpecificE
xception(SQLStateConverter.java:91)
[java] at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:6879)
[java] at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:7036)
[java] at sun.jdbc.odbc.JdbcOdbc.SQLDisconnect(JdbcOdbc.java:2988)
[java] at sun.jdbc.odbc.JdbcOdbcDriver.disconnect(JdbcOdbcDriver.java:9
80)
[java] at sun.jdbc.odbc.JdbcOdbcConnection.close(JdbcOdbcConnection.jav
a:739)
[java] at org.hibernate.tool.hbm2ddl.SchemaValidator.validate(SchemaVal
idator.java:125)
[java] at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryIm
pl.java:299)
[java] at org.hibernate.cfg.Configuration.buildSessionFactory(Configura
tion.java:1145)
[java] at HibernateUtil.<clinit>(Unknown Source)
[java] at org.hibernate.exception.SQLStateConverter.convert(SQLStateCon
verter.java:79)
[java] at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExcep
tionHelper.java:43)
[java] at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExcep
tionHelper.java:29)
[java] at org.hibernate.tool.hbm2ddl.DatabaseMetadata.getTableMetadata(
DatabaseMetadata.java:100)
[java] at org.hibernate.cfg.Configuration.validateSchema(Configuration.
java:946)
[java] at org.hibernate.tool.hbm2ddl.SchemaValidator.validate(SchemaVal
idator.java:116)
[java] at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryIm
pl.java:299)
[java] at org.hibernate.cfg.Configuration.buildSessionFactory(Configura
tion.java:1145)
[java] ... 3 more
[java] Caused by: java.sql.SQLException: [Microsoft][ODBC SQL Server Driver
]Invalid Descriptor Index
[java] at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:6879)
[java] at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:7036)
[java] at sun.jdbc.odbc.JdbcOdbc.SQLGetDataString(JdbcOdbc.java:3862)
[java] at sun.jdbc.odbc.JdbcOdbcResultSet.getDataString(JdbcOdbcResultS
et.java:5561)
[java] at sun.jdbc.odbc.JdbcOdbcResultSet.getString(JdbcOdbcResultSet.j
ava:338)
[java] at sun.jdbc.odbc.JdbcOdbcResultSet.getString(JdbcOdbcResultSet.j
ava:395)
[java] at PCManager.listEvents(Unknown Source)
[java] at PCManager.main(Unknown Source)
[java] at org.hibernate.tool.hbm2ddl.TableMetadata.<init>(TableMetadata
.java:30)
[java] at org.hibernate.tool.hbm2ddl.DatabaseMetadata.getTableMetadata(
DatabaseMetadata.java:85)
[java] ... 7 more
[java] Exception in thread "main"
[java] Java Result: 1
BUILD SUCCESSFUL
Total time: 4 seconds
Name and version of the database you are using:
Microsoft SQLServer2000
The generated SQL (show_sql=true):
When the program is run with "hbm2ddl.auto" property as create, I get the following output.
C:\Documents and Settings\mirza\Desktop\hibernate-3.1rc2\MyHibernate>ant run -Daction=store
Buildfile: build.xml
clean:
[delete] Deleting directory C:\Documents and Settings\mirza\Desktop\hibernate
-3.1rc2\MyHibernate\bin
[mkdir] Created dir: C:\Documents and Settings\mirza\Desktop\hibernate-3.1rc
2\MyHibernate\bin
copy-resources:
[copy] Copying 4 files to C:\Documents and Settings\mirza\Desktop\hibernate
-3.1rc2\MyHibernate\bin
compile:
[javac] Compiling 5 source files to C:\Documents and Settings\mirza\Desktop\
hibernate-3.1rc2\MyHibernate\bin
run:
[java] 09:12:54,820 INFO Environment:474 - Hibernate 3.1 rc2
[java] 09:12:54,836 INFO Environment:489 - loaded properties from resource
hibernate.properties: {hibernate.cglib.use_reflection_optimizer=true, hibernate
.cache.provider_class=org.hibernate.cache.HashtableCacheProvider, hibernate.dial
ect=org.hibernate.dialect.SQLServerDialect, hibernate.max_fetch_depth=1, hiberna
te.jdbc.use_streams_for_binary=true, hibernate.format_sql=true, hibernate.query.
substitutions=yes 'Y', no 'N', hibernate.proxool.pool_alias=pool1, hibernate.cac
he.region_prefix=hibernate.test, hibernate.jdbc.batch_versioned_data=true, hiber
nate.connection.pool_size=1}
[java] 09:12:54,852 INFO Environment:519 - using java.io streams to persis
t binary types
[java] 09:12:54,852 INFO Environment:520 - using CGLIB reflection optimize
r
[java] 09:12:54,867 INFO Environment:550 - using JDK 1.4 java.sql.Timestam
p handling
[java] 09:12:54,946 INFO Configuration:1257 - configuring from resource: /
hibernate.cfg.xml
[java] 09:12:54,946 INFO Configuration:1234 - Configuration resource: /hib
ernate.cfg.xml
[java] 09:12:55,259 INFO Configuration:460 - Reading mappings from resourc
e: PCMapping.hbm.xml
[java] 09:12:55,400 INFO HbmBinder:266 - Mapping class: Parent -> Parent
[java] 09:12:55,447 INFO HbmBinder:266 - Mapping class: Child -> Child
[java] 09:12:55,447 INFO Configuration:1368 - Configured SessionFactory: n
ull
[java] 09:12:55,447 INFO Configuration:1014 - processing extends queue
[java] 09:12:55,447 INFO Configuration:1018 - processing collection mappin
gs
[java] 09:12:55,447 INFO HbmBinder:2233 - Mapping collection: Parent.child
ren -> Child
[java] 09:12:55,463 INFO Configuration:1027 - processing association prope
rty references
[java] 09:12:55,479 INFO Configuration:1049 - processing foreign key const
raints
[java] 09:12:55,557 INFO DriverManagerConnectionProvider:41 - Using Hibern
ate built-in connection pool (not for production use!)
[java] 09:12:55,557 INFO DriverManagerConnectionProvider:42 - Hibernate co
nnection pool size: 1
[java] 09:12:55,557 INFO DriverManagerConnectionProvider:45 - autocommit m
ode: false
[java] 09:12:55,573 INFO DriverManagerConnectionProvider:80 - using driver
: sun.jdbc.odbc.JdbcOdbcDriver at URL: jdbc:odbc:MySQL
[java] 09:12:55,573 INFO DriverManagerConnectionProvider:86 - connection p
roperties: {}
[java] 09:12:55,651 INFO SettingsFactory:77 - RDBMS: Microsoft SQL Server,
version: 08.00.0194
[java] 09:12:55,667 INFO SettingsFactory:78 - JDBC driver: JDBC-ODBC Bridg
e (SQLSRV32.DLL), version: 2.0001 (03.85.1117)
[java] 09:12:55,682 INFO Dialect:100 - Using dialect: org.hibernate.dialec
t.SQLServerDialect
[java] 09:12:55,698 INFO TransactionFactoryFactory:31 - Using default tran
saction strategy (direct JDBC transactions)
[java] 09:12:55,714 INFO TransactionManagerLookupFactory:33 - No Transacti
onManagerLookup configured (in JTA environment, use of read-write or transaction
al second-level cache is not recommended)
[java] 09:12:55,714 INFO SettingsFactory:125 - Automatic flush during befo
reCompletion(): disabled
[java] 09:12:55,714 INFO SettingsFactory:129 - Automatic session close at
end of transaction: disabled
[java] 09:12:55,729 INFO SettingsFactory:144 - Scrollable result sets: ena
bled
[java] 09:12:55,729 INFO SettingsFactory:152 - JDBC3 getGeneratedKeys(): d
isabled
[java] 09:12:55,745 INFO SettingsFactory:160 - Connection release mode: au
to
[java] 09:12:55,745 INFO SettingsFactory:184 - Maximum outer join fetch de
pth: 1
[java] 09:12:55,745 INFO SettingsFactory:187 - Default batch fetch size: 1
[java] 09:12:55,745 INFO SettingsFactory:191 - Generate SQL with comments:
disabled
[java] 09:12:55,745 INFO SettingsFactory:195 - Order SQL updates by primar
y key: disabled
[java] 09:12:55,745 INFO SettingsFactory:338 - Query translator: org.hiber
nate.hql.ast.ASTQueryTranslatorFactory
[java] 09:12:55,777 INFO ASTQueryTranslatorFactory:21 - Using ASTQueryTran
slatorFactory
[java] 09:12:55,792 INFO SettingsFactory:203 - Query language substitution
s: {no='N', yes='Y'}
[java] 09:12:55,792 INFO SettingsFactory:209 - Second-level cache: enabled
[java] 09:12:55,792 INFO SettingsFactory:213 - Query cache: disabled
[java] 09:12:55,792 INFO SettingsFactory:325 - Cache provider: org.hiberna
te.cache.HashtableCacheProvider
[java] 09:12:55,808 INFO SettingsFactory:228 - Optimize cache for minimal
puts: disabled
[java] 09:12:55,808 INFO SettingsFactory:233 - Cache region prefix: hibern
ate.test
[java] 09:12:55,808 INFO SettingsFactory:237 - Structured second-level cac
he entries: disabled
[java] 09:12:55,839 INFO SettingsFactory:257 - Echoing all SQL to stdout
[java] 09:12:55,839 INFO SettingsFactory:264 - Statistics: disabled
[java] 09:12:55,839 INFO SettingsFactory:268 - Deleted entity synthetic id
entifier rollback: disabled
[java] 09:12:55,839 INFO SettingsFactory:283 - Default entity-mode: POJO
[java] 09:12:55,980 INFO SessionFactoryImpl:155 - building session factory
[java] 09:12:56,325 INFO SessionFactoryObjectFactory:82 - Not binding fact
ory to JNDI, no JNDI name configured
[java] 09:12:56,341 INFO Configuration:1014 - processing extends queue
[java] 09:12:56,341 INFO Configuration:1018 - processing collection mappin
gs
[java] 09:12:56,341 INFO Configuration:1027 - processing association prope
rty references
[java] 09:12:56,341 INFO Configuration:1049 - processing foreign key const
raints
[java] 09:12:56,356 INFO Configuration:1014 - processing extends queue
[java] 09:12:56,356 INFO Configuration:1018 - processing collection mappin
gs
[java] 09:12:56,356 INFO Configuration:1027 - processing association prope
rty references
[java] 09:12:56,372 INFO Configuration:1049 - processing foreign key const
raints
[java] 09:12:56,372 INFO SchemaExport:153 - Running hbm2ddl schema export
[java] 09:12:56,388 DEBUG SchemaExport:171 - import file not found: /import
.sql
[java] 09:12:56,388 INFO SchemaExport:180 - exporting generated schema to
database
[java] 09:12:56,403 DEBUG SchemaExport:283 -
[java] alter table Child
[java] drop constraint FK3E104FC976A59A
[java] 09:12:56,466 DEBUG SchemaExport:283 -
[java] drop table Child
[java] 09:12:56,544 DEBUG SchemaExport:283 -
[java] drop table Parent
[java] 09:12:56,654 DEBUG SchemaExport:283 -
[java] create table Child (
[java] id numeric(19,0) identity not null,
[java] name varchar(255) null,
[java] parent_id numeric(19,0) null,
[java] primary key (id)
[java] )
[java] 09:12:56,779 DEBUG SchemaExport:283 -
[java] create table Parent (
[java] id numeric(19,0) identity not null,
[java] primary key (id)
[java] )
[java] 09:12:56,873 DEBUG SchemaExport:283 -
[java] alter table Child
[java] add constraint FK3E104FC976A59A
[java] foreign key (parent_id)
[java] references Parent
[java] 09:12:56,952 INFO SchemaExport:200 - schema export complete
[java] 09:12:56,952 WARN JDBCExceptionReporter:48 - SQL Warning: 5701, SQL
State: 01000
[java] 09:12:56,952 WARN JDBCExceptionReporter:49 - [Microsoft][ODBC SQL S
erver Driver][SQL Server]Changed database context to 'master'.
[java] 09:12:56,952 WARN JDBCExceptionReporter:48 - SQL Warning: 5703, SQL
State: 01000
[java] 09:12:56,952 WARN JDBCExceptionReporter:49 - [Microsoft][ODBC SQL S
erver Driver][SQL Server]Changed language setting to us_english.
[java] 09:12:56,983 INFO SessionFactoryImpl:432 - Checking 0 named queries
[java] Hibernate:
[java] insert
[java] into
[java] Child
[java] (name)
[java] values
[java] (?) select
[java] scope_identity()
[java] Hibernate:
[java] insert
[java] into
[java] Child
[java] (name)
[java] values
[java] (?) select
[java] scope_identity()
[java] Hibernate:
[java] insert
[java] into
[java] Child
[java] (name)
[java] values
[java] (?) select
[java] scope_identity()
[java] Hibernate:
[java] insert
[java] into
[java] Parent
[java] default
[java] values
[java] select
[java] scope_identity()
[java] Hibernate:
[java] update
[java] Child
[java] set
[java] parent_id=?
[java] where
[java] id=?
[java] Hibernate:
[java] update
[java] Child
[java] set
[java] parent_id=?
[java] where
[java] id=?
[java] Hibernate:
[java] update
[java] Child
[java] set
[java] parent_id=?
[java] where
[java] id=?
[java] 09:12:57,390 INFO SessionFactoryImpl:831 - closing
[java] 09:12:57,390 INFO DriverManagerConnectionProvider:147 - cleaning up
connection pool: jdbc:odbc:MySQL
BUILD SUCCESSFUL
Total time: 5 seconds
Debug level Hibernate log excerpt:
Included in the above description.

That's not the right mapping for the 1:m relationship in Hibernate.
First of all, I believe the recommendation is to have a separate .hbm.xml file for each class, so you should have one for Parent and Child.
Second, you'll find the proper syntax for a one-to-many relationship here:
http://www.hibernate.org/hib_docs/v3/reference/en/html/tutorial.html#tutorial-associations
See if those help.
The tutorial docs for Hibernate are quite good. I'd recommend going through them carefully.
%

How many primary keys use in one table

Hi,
Please help me. Maximum How many primary keys use with in one table
Regards,
Sunil Kumar.T

Hi,
For my knowledge, It depends on the Database & version u r working.. Right..
This is a sample description what I seen for a Database...
Technical Specification of SAP DB Version 7.4
Description                            Maximum Value
Database size                    32 TB (with 8 KB page size)
Number of files/volumes per database64...4096, specified by a configuration parameter
File/volume size (data)      518 ...8 GB (dependent on operating system limitations)
File/volume size (log)1      6 TB (dependent on operating system limitations)
SQL statement length>= 16 KB (Default value 64 KB, specified by a system variable)
SQL character string lengthSpecified by a system variable
Identifier length                32 characters
Numeric precision              38 places
Number of tables unlimited
Number of columns per table (with KEY) 1024
Number of columns per table (without KEY) 1023
Number of primary key columns per table 512
Number of columns in an index 16
Reward Points if useful

Newbie: one to many relationship SQL error

Greetings all-
This is probably a slam dunk for you JDO experts. I'm a JDO newbie, working
with an existing schema in MySQL. I have a one to many relationship between
two tables:
Table "company":
Fields:
company_id: int(11) -- primary key
name : varchar(64)
division : varchar(64)
Table "company_products"
Fields:
company_id: int(11) -- foreign key to table company
product_name: varchar(64)
product_description: varchar(64)
So, I created the corresponding classes:
public class Company {
private int companyID;
private String company_name;
private String division;
// Array of CompanyProduct
private ArrayList companyProducts;
// .. methods omitted
public class CompanyProduct {
private int companyID;
private String productName;
private String productDesc;
// Methods omitted
Then I created the "package.jdo" file:
<?xml version="1.0"?>
<jdo>
<package name="com.packexpo.db">
<class name="Company">
<extension vendor-name="tt" key="table" value="company"/>
<extension vendor-name="tt" key="pk-column" value="company_id"/>
<extension vendor-name="tt" key="lock-column" value="none"/>
<extension vendor-name="tt" key="class-column" value="none"/>
<field name="companyID">
<extension vendor-name="tt" key="data-column" value="company_id"/>
</field>
<field name="name">
<extension vendor-name="tt" key="data-column" value="name"/>
<extension vendor-name="tt" key="column-length" value="64"/>
</field>
<field name="division">
<extension vendor-name="tt" key="data-column" value="division"/>
<extension vendor-name="tt" key="column-length" value="64"/>
</field>
<field name="companyProducts">
<collection element-type="com.packexpo.db.CompanyProduct"/>
<extension vendor-name="tt" key="inverse" value="companyID"/>
</field>
</class>
<class name="CompanyProduct">
<extension vendor-name="tt" key="table" value="company_product"/>
<extension vendor-name="tt" key="pk-column" value="company_id"/>
<extension vendor-name="tt" key="lock-column" value="none"/>
<extension vendor-name="tt" key="class-column" value="none"/>
<field name="companyID">
<extension vendor-name="tt" key="data-column" value="company_id"/>
</field>
<field name="productName">
<extension vendor-name="tt" key="data-column" value="product_name"/>
<extension vendor-name="tt" key="column-length" value="64"/>
</field>
<field name="productDesc">
<extension vendor-name="tt" key="data-column"
value="product_description"/>
<extension vendor-name="tt" key="column-length" value="64"/>
</field>
</class>
</package>
</jdo>
Enhancement works fine. I successfully query and retrive Company objects
from the database, but as soon as I try to get the list of CompanyProducts,
I get an SQL Error:
javax.jdo.JDODataStoreException: [SQL=SELECT company.COMPANYPRODUCTSX FROM
company WHERE company.company_id = 82061]
E0610 Error in executeQuery()
E0606 executeQuery() error --
E0701 Error in getResult().
E0708 Command results in error - 1054 Unknown column
'company.COMPANYPRODUCTSX' in 'field list'
NestedThrowables:
com.solarmetric.kodo.impl.jdbc.sql.SQLExceptionWrapper: [SQL=SELECT
company.COMPANYPRODUCTSX FROM company WHERE company.company_id = 82061]
E0610 Error in executeQuery()
E0606 executeQuery() error --
E0701 Error in getResult().
E0708 Command results in error - 1054 Unknown column
'company.COMPANYPRODUCTSX' in 'field list'
I know i have probably set up the package.jdo file incorrectly, but I'm at a
loss for what I did wrong.
Any suggestions?
Thanks!
-Mike

Hi,
915766 wrote:
I need to write sql for below requirement:
table structure is
serial no LPN
1 4
2 4
3 6
4 6
5 6
6 3
7 3
8 3
9 1
I have to pick distinct 'LPN' like below:That sounds like a job for "GROUP BY lpn".
(any serial no can be picked for the distinct LPN)It looks like you're displaying the lowest serial_no for each lpn. That's easy to do, using the aggregate MIN function.
results needs to be as below:
serial no LPN
1 4
3 6
6 3
9 1
Please suggest with sql.Here's one way:
SELECT    MIN (serial_no)   AS serial_no
,         lpn
FROM      table_x
GROUP BY lpn
ORDER BY lpn     -- if wanted
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only), and also post the results you want from that data.
Explain, using specific examples, how you get those results from that data.
Always say which version of Oracle you're using (e.g., 11.2.0.2.0).
See the forum FAQ {message:id=9360002}

One to Many Mapping with different SQL types

We have an interesting one to many relationship in our system in which the source and target field SQL types do not match, but the values do. The relationship is actually between multiple entries in the same database table. So, imagine we have some table that looks sort of like this:
KEY ObjectID OwnerNo
100 1234     0
101 ABCD     1234
102 EFGH     1234ObjectID is defined as a varchar type, but Parent entries are guaranteed to have integer value ObjectIDs. Child entries point to the parent through the OwnerNo field, which defined in the database as a numeric.
A simple one-to-many mapping will give you the following SQL error on execution: [SQL0401] Comparison operator = operands not compatible.
I tried modifying my descriptor after load as follows:
   public static void modifyOneToMany(Descriptor descriptor)
       ExpressionBuilder builder = new ExpressionBuilder();
       Expression exp = builder.getField("OwnerNo").
          equal(builder.getField("ObjectID").toNumber());
       descriptor.getMappingForAttributeName("children")
          .setSelectionCriteria(exp);
   }But this introduces two problems in the generated SQL ( ... WHERE ((t0.OwnerNo = TO_NUMBER(t0.ObjectID) ... ). First, this generates a where clause using the function TO_NUMBER, which is not supported by DB2 on AS400, our database platform. Second, the table reference is off in the generated SQL--I couldn't find a way to specify that the right hand side of the = operator should be from the parent of the one to many mapping--both sides are referenced from the child context (t0).

I found the getFunction() method on Expression, so I can solve half of this problem with the following code:
   public static void modifyOneToMany(Descriptor descriptor)
     if (descriptor.getMappingForAttributeName("children").isOneToManyMapping())
       OneToManyMapping map = (OneToManyMapping) descriptor.
                              getMappingForAttributeName("children");
       DatabaseField objectID= (DatabaseField) map.getSourceKeyFields().get(0);
       DatabaseField ownerNo = (DatabaseField) map.getTargetForeignKeyFields().get(0);
       ExpressionBuilder builder = new ExpressionBuilder();
       Expression exp = builder.getField(ownerNo).getFunction("CHAR").
                        equal(builder.getField(objectID));
       map.setSelectionCriteria(exp);
   }This generates the following where clause:
... WHERE ((CHAR(t0.OwnerNo) = t0.ObjectID) ...
But, I still have two questions:
1. How do we get the right hand side of this comparison to reference the Parent part of the 1-M mapping?
2. Since character and numeric conversions are pretty standard SQL functions, is there something wrong with the DB2 database platform I'm using?

Using models for multiple one-to-many table relationships

Hi there!
I have a database with tables that have one-to-many relationships. They
are laid out with a standard join tables:
A     A_B     B     B_C     C
a_id     a_id     b_id     b_id     c_id
b_id     c_id
and has 1 A for n of B. In some cases, the B table also joins with
another table for yet more information.
My question: what technique should I use to organize a database of this
type into JATO Models?
I could create an AModel, for example, that would have a set of query
field descriptors for the information relevant from tables A and B. But
then how do I query table C when that information is necessary? Or,
more to the point, create information in C when a new entry in B is created.
Do the models use each other, or is that left up to the view bean (seems
incorrect for data isolation).
Any pointers appreciated,
Byron

Byron,
You can create a separate "modifying" model for each table and do
inserts/deletes/updates in a transaction across the tables with the
three models. That's really the easy part.
The somewhat more tedious part is the "join" models, but not hard to do.
You just have to decide what you need from the different tables and
quite possibly create multiple join models for different select scenarios.
So let's just run through a simple two table join model.
Create a SQL model. I usually name them based on the table joins. Let's
use a somewhat more real example:
table = customer
columns = custid, firstname, lastname, email
table = address
columns = addrid (seqid), custid (fk), type
('w'ork,'h'ome,'b'illing,'s'hipping,'o'ther), address1, address2, city,
state, zip
Suppose we want to select a customer and show a list of all his/her
addresses.
I would create a SQL model class (extending QueryModelBase of course)
called CustomerAddressJoinModel (this naming convention gets tough with
three or more tables, so you have to be creative).
In that model, I would create the fields just like any single table
model. You need only include the columns you need. Maybe you create one
join model that only has custid, lastname, firstname, type, city, zip.
OK, so we only cut out 2 columns, but you get the point. If you had a
table with lots of columns with data you rarely need to display and/or
update, then you can exclude them. Probably a slick way to exclude
dynamically, but this is straight forward.
Another join model could have all the columns of both tables.
So the trick is to set the static where criteria (using the
setStaticWhereCriteria method) in the model's constructor. I think the
sql model template has this in it.
setStaticWhereCriteria(customer.custid=address.custid);
Now you just set your criteria like any other model, and execute it.
For a 3 table join, you just set the static criteria like this:
tableA.aid=tableB.aid AND tableB.bid=tableC.bid
does that make sense?
You can also set the "modifying table" (setModifyingTable(table) - i
think that's right) in the model and inserts/updates/deletes will only
operate on that table within the model. Problem is maybe in the the
field binding in your views. You may want to select from one field, and
modify using another field. Can be done though, just not directly supported.
In the next release of JATO, you will be able to set a display fields
binding for read and write using different fields and even different models.
craig
Byron Servies wrote:
Hi there!
I have a database with tables that have one-to-many relationships. They
are laid out with a standard join tables:
     A     A_B     B     B_C     C
     a_id     a_id     b_id     b_id     c_id
     b_id     c_id
and has 1 A for n of B. In some cases, the B table also joins with
another table for yet more information.
My question: what technique should I use to organize a database of this
type into JATO Models?
I could create an AModel, for example, that would have a set of query
field descriptors for the information relevant from tables A and B. But
then how do I query table C when that information is necessary? Or,
more to the point, create information in C when a new entry in B is created.
Do the models use each other, or is that left up to the view bean (seems
incorrect for data isolation).
Any pointers appreciated,
Byron
To download the latest version of JATO, please visit:
http://www.sun.com/software/download/developer/5102.html
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp

Merge Two Reports in Excel Analyzer - One To Many Relationship

I want to show AR Data with CO Data - e.g. a bill + Income and it's associated account ssignemnt on the FI/CO side. I want the report to be able to show a cost centre manager to be wary of the income credited to their cost centre when a debtor has been raisedaas they may not fully pay the bill. To do this I'm using the standard DSO for AR & GL line items. Fisrtly I run a query on GL line item data where the user can select from a cost centre variable to look at credits to their cost centre. This produces a list of source documents that are used (via replacement path variable) in a second query. The second GL Query gives me a list of the allocation numbers for those line items. Had to be two queres as there are two GL postings that needed linking (this is because the cost assignment comes from a ceratin acc type and the debtor information comes from another acc type). I then use the allocation number (again via a replacement path variable) to run a third query on the AR data that shows all bills and payments linked to that allocation number. It seems to work ok.
However I have put these three queries in an Excel Analyzer workbook. All the user does is enter a cost centre when running the report. Each query is on a different sheet but what I'd like to do is merge the data on to the one sheet. I want to see the bill and it's payments from the AR data matched up with the cost assignment from the FI/CO data. This would be a one to many relationship e.g. one bill may have it's cost assignment split over more than one cost centre. Is there anyway to do this using simple excel functionality?
So I'd like to see:
Allocation No. 12345 Bill £100 Revenue £50 Cost Centre 1234 £25
Cost Centre 2345 £25
Anybody any ideas?

Hi,
Thanks for your answers.
I did explore using infosets but really struggled with joining the data and getting a sensible output. For example where a bill was done in installments I was getting 12 lines (e.g. one for each month) rather than just one. THis meant it looked liked they'd paid twleve times as much etc.
I did also try report to report. Which to my mind worked ok. Except the customer wanted it all in "One" report rather than having to drill down to see data.
I'll try a multiprovider but I'm worried that I'll end up with similar issues as I had when using the infoset.
Cheers
Joel

One to many merge/concat using pl/sql

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