ER: Auto create EO Alternate Keys based on table UKs

Hi JDev gang
Under TP4 and above for ADF BC, when we create an EO based on a db table which has both a database PK and a database unique key, it would be good to save the developer some work and automatically create an EO alternative key on the UK. Could you raise an ER please?
Ta,
CM.

Hi,
will do, but make it optional because not all developers may like the alternative key be generated.
Frank
Edited by: Frank Nimphius on Sep 16, 2008 7:26 AM

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hello sir/mam.
i am selva, i am new to abap,
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Hi Selva,
Many Primary Keys = Composite Key.
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Message was edited by: Maheswaran B

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Product : oracle data modeler ( 3.0.0.665 32 bit version ) on windows XP Professional , : Target DB Oracle 11GR2
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Hi All,
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code 1:
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Edited by: orasuriya on Aug 8, 2009 2:02 AM

Actually the design is completely incorrect.
What you say is
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'foo', 'foo series'
'foo','foo model'
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Senior Oracle DBA

Can we create an APEX Form based on Table which has no Primary Key

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Deepak_J wrote:
Hi,
I have a requirement.
I need to create a FORM based on a table having no Primary Key but it is having Unique Key . I can use Unique Key as an alternate of Primary Key.
but When I tried to create a Form, I got the following message.
Source tables for forms and tabular forms must have a primary key
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Hi,
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ALTER TABLE OPS_BR_VENDORS ADD ( FOREIGN KEY (VENDOR_ID) REFERENCES PO_VENDORS (VENDOR_ID))
ERROR at line 1:
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Mike,
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Hello - New to Oracle and was wondering what is a good way to create an auto-incrementing primary key for a table. I have done this so far:
Created a new sequence cst_swq begin with 1 increment by 1.
CREATE OR REPLACE TRIGGER CST_TRIG
BEFORE INSERT
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REFERENCING NEW AS NEW
FOR EACH ROW
BEGIN
SELECT CST_SEQ.nextval INTO NEW.SALE_ID FROM dual;
This does not really work for me. Help with the code or a better idea to create primary key is much appreciated, thank you.

adi26 wrote:
This does not really work for me. What does that mean?
In which way does this approch not meet your requirements?
BTW: after 200+ posts you should have learned how to use tags...
bye
TPD

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I don't have primary key column in target table, while exicuting mapping I got a error while creating INDEX.
Could you please help how to slove this

Hi,
That is a process definition issue.
If you don't have a PK then:
1) or you don't execute updates
2)or you have an alternate Key to update it.
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Case 2) at interface, go to each column what is Alternate Key and check it as key (click at column and check the box Key at bottom of propriety window).
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I am unable to create the Foreign key

Hi,
I need to create the Foreign key which reffered to composite primary key.
the following table structure
Parent table
DIVISION, PROJECT_NUMBER, COMPETITION_PROJECT_NUMBER, COMPETITIVE_STMT_TYPE, SEQUENCE, CATEGORY, STATEMENT, USER_ID, RECORD_MODIFICATION_DATE
Here composite primary key columns(DIVISION, PROJECT_NUMBER, COMPETITION_PROJECT_NUMBER, COMPETITIVE_STMT_TYPE, SEQUENCE)
Child Table
DIVISION          VARCHAR2 (4)
PROJECT_NUMBER          NUMBER (10)COMPETITION_PROJECT_NUMBER     NUMBER (10)
COMPETITIVE_STMT_TYPE          VARCHAR2 (2)
SEQUENCE     NUMBER (2)
CATEGORY          VARCHAR2 (100)
STATEMENT     LONG
USER_ID     VARCHAR2 (100)
RECORD_MODIFICATION_DATE     DATE
ALTER TABLE COMPETITION_STMT ADD (CONSTRAINT COMPET_STMT_FK_PROJ_NUM foreign key
          (PROJECT_NUMBER) REFERENCES PROD_COMPET_XREF (PROJECT_NUMBER));
when i am trying to create foreign key i got this error
ORA-02270: no matching unique or primary key for this column-list
this is production issue Please help me.
Thanks in advance
Regards
Kumar.s

ALTER TABLE PROD_COMPET_XREF ADD (
CONSTRAINT PROD_COMP_XREF_PK_DPNCPNCT
PRIMARY KEY
(COMPETITION_PROJECT_NUMBER, PROJECT_NUMBER, DIVISION, PRODUCT_LOC_INDICATOR)
When you create a foreign key, it must reference a unique or primary key. The primary or Unique key must consist ONLY of those columns upon which the Primary key is based.
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I doubt you will be able to add a foreign key because I suspect you might have multiple rows with the same value for this column based on your composite key; however, if you only intend for the project number to be listed only once and to be unique for each row, then the unique key may work or you may want to revist your primary key on this table. Perhaps you don't need it to be a composite PK???
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Primary key based on multiple fields which are of a custom class type

Hello!
I have the following two classes.
public class Application
protected String appName;
protected Set moduleOptions = new HashSet(); //Set<ModuleOption>
public class Option
protected String name;
protected Application application;
Now, I need for Option to have a composite primary key based on both its
fields. How do I do this?
For starters, I just need a few hints on how this should be done in Kodo
because I already have this thing working in JPOX and that solution does
not map directly to Kodo. JPOX defines the OptionPK (primary key class)
to contain field ApplicationPK, and not Application. But Kodo does not
accept this because of a mismatch between fields in class and its primary
key class. (Not implying that Kodo should accept the same kind of
solution.)
Btw, I'm evaluating version 3.2.3.
Thanks in advance!

Viktor,
The typical Kodo pattern for doing this is to create a private field in
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those fields in the OptionPK. These fields should then be mapped to the
same columns as the Application reference. Then, set the primary key
fields to the same value as they are in the related object.
Kodo allows multiple fields to be mapped to the same column in the
database, and throws an exception if your actions would set the column
to different values. So, typically, this might look like:
public class Application
protected String appName; // I'm assuming that this is the PK
protected Set moduleOptions = new HashSet ();
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protected Application application; // not pk
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public Option (String n, Application a)
name = n;
application = a;
applicationAppName = a.appName;
-Patrick
Viktor Matic wrote:
Hello!
I have the following two classes.
public class Application
protected String appName;
protected Set moduleOptions = new HashSet(); //Set<ModuleOption>
public class Option
protected String name;
protected Application application;
Now, I need for Option to have a composite primary key based on both its
fields. How do I do this?
For starters, I just need a few hints on how this should be done in Kodo
because I already have this thing working in JPOX and that solution does
not map directly to Kodo. JPOX defines the OptionPK (primary key class)
to contain field ApplicationPK, and not Application. But Kodo does not
accept this because of a mismatch between fields in class and its primary
key class. (Not implying that Kodo should accept the same kind of
solution.)
Btw, I'm evaluating version 3.2.3.
Thanks in advance!

ER: Auto create EO Alternate Keys based on table UKs

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