One-to-many/foreign keys howto

I have a situation where I'm trying to assemble a web of data and not make
JDO mad.
Here's the structure. I load this data in in batches, with an entry being
placed in a load history table (H) to track each batch. Each batch
contains primary (M) records associated with 0..n qualifying records from
one or both of two auxiliary tables (D, L). All liberally salted with
primary and foreign keys for referential integrity, and most of the keys
are compounds, since the "M" identifiers get recycled for each batch load.
Or, in other words, the "M" key is an ID plus an H key.
Here's a map:
H--0..n-->M
__ +--0..n-->D
__ +--0..n-->L
Just to make things even more fun, the primary key of the H table is an
Oracle 8 "DATE" type, which -- unlike ANSI SQL -- is actually a
"TIMESTAMP". Kodo is rendering this as a java.util.Date rather than
java.sql.Date, which is fine, because I need the full millisecond
resolution. Interestingly, when I altered the schema type to "timestamp",
load operations failed because the "column value was too big" according to
Oracle.
Also adding to the enjoyment, the actual order of presentation of data is
that ALL M records come in, then ALL D records and finally ALL L records.
I create my own H when the load starts.
Now ideally, the whole shooting match will be a single pass/fail
transaction, but that's for later.
Right now, I can create the H, no problem and M's no problem. However,
adding the D's and L's fails come commit time:
kodo.util.FatalUserException: Attempt to set column "OFAC_ADDRESS.LOAD_ID"
to two different values: "7/9/04 9:41 AM", "7/9/04 9:41 AM" This can occur
when you fail to set both sides of a two-sided relation between objects,
or when you map different fields to the same column, but you do not keep
the values of these fields in synch.
The granularity of the timestamps printed isn't making life easier, so I
double-checked the D record's actual local value
ADDRESS SERIALIZER A: Fri Jul 09 09:41:58 EDT 2004/Fri Jul 09 09:41:58 EDT
2004
ADDRESS SERIALIZER B: 1089380518179/1089380518179 (getTime())
ADDRESS SERIALIZER C: -1541174818/-1541174818 (hashCode())
I think I need a clearer understanding of what actions cascade here and
what actions require manual help. For M, I did a setH(H) plus a
setHid(H.getId()) and that made it happy. For D's and L's, of course, I
also have to do a setM(M), where, because of the way the data comes in, I
had to lookup the previously-stored M based on the M.id plus H.id.
Now the parent objects contain sets of child objects. In theory, I should
be adding the newly-created children to those sets, but in practice,
setting the parent on the child appears to cause this to happen
automagically, though I still have to manually set the local value of the
foreign key field.
I really need to find a good FM to RT. Online (and in the Kodo docs), I
find a lot about setting up the XML for one-to-many mapping, but the Java
coding side is taken as obvious. Regrettably, few things are obvious to me.
I suppose I should excerpt the schema just for completeness:
<table name="LOAD_HISTORY">
<pk name="SYS_C0036906" column="LOAD_ID"/>
<column name="LIST_TYPE" type="varchar" size="32"/>
<column name="LOADED_BY" type="varchar" size="32"/>
<column name="LOAD_ID" type="date" not-null="true" size="7"/>
<column name="SUNSET_TIME" type="date" size="7"/>
<fk name="FK_LOADHISTORY_LOADEDBY" delete-action="exception"
to-table="OFAC.OFAC_USERS" column="LOADED_BY"/>
</table>
<table name="OFAC_ADDRESS">
<pk name="SYS_C0036904">
<on column="ADDRESS_ID"/>
<on column="LOAD_ID"/>
</pk>
<column name="ADDRESS" type="varchar" size="125"/>
<column name="ADDRESS_ID" type="decimal" not-null="true"
size="22"/>
<column name="CITY" type="varchar" size="64"/>
<column name="COUNTRY" type="varchar" size="64"/>
<column name="ID" type="decimal" size="22"/>
<column name="LOAD_ID" type="date" not-null="true" size="7"/>
<column name="REMARKS" type="varchar" size="300"/>
<fk name="FK_OFACADDRESS_ID" delete-action="exception"
to-table="OFAC.OFAC_MAIN">
<join column="ID" to-column="ID"/>
<join column="LOAD_ID" to-column="LOAD_ID"/>
</fk>
<fk name="FK_OFACADDRESS_LOADID" delete-action="exception"
to-table="OFAC.LOAD_HISTORY" column="LOAD_ID"/>
</table>
<table name="OFAC_ALIAS">
<pk name="SYS_C0036905">
<on column="ALIAS_ID"/>
<on column="LOAD_ID"/>
</pk>
<column name="ALIAS" type="varchar" size="200"/>
<column name="ALIAS_ID" type="decimal" not-null="true"
size="22"/>
<column name="ID" type="decimal" size="22"/>
<column name="LOAD_ID" type="date" not-null="true" size="7"/>
<column name="REMARKS" type="varchar" size="300"/>
<fk name="FK_OFACALIAS_ID" delete-action="exception"
to-table="OFAC.OFAC_MAIN">
<join column="ID" to-column="ID"/>
<join column="LOAD_ID" to-column="LOAD_ID"/>
</fk>
<fk name="FK_OFACALIAS_LOADID" delete-action="exception"
to-table="OFAC.LOAD_HISTORY" column="LOAD_ID"/>
</table>
<table name="OFAC_MAIN">
<pk name="SYS_C0036903">
<on column="ID"/>
<on column="LOAD_ID"/>
</pk>
<column name="ID" type="decimal" not-null="true" size="22"/>
<column name="LOAD_ID" type="date" not-null="true" size="7"/>
<column name="REMARKS" type="varchar" size="300"/>
<fk name="FK_OFACMAIN_LOADID" delete-action="exception"
to-table="OFAC.LOAD_HISTORY" column="LOAD_ID"/>
</table>

Hi Greg,
I'm just using the unmodified schema-to-mapping output. The one thing that
might be unusual is that I've broken up related tables into discrete
packages, but I believe all the items in question are in this package.
Here it is:
<?xml version="1.0" encoding="UTF-8"?>
<mapping>
<package name="com.everbank.finance.ofac3.jdo.sdn">
<class name="LoadHistory">
<jdbc-class-map type="base" table="OFAC.LOAD_HISTORY"/>
<jdbc-version-ind type="state-image"/>
<field name="listType">
<jdbc-field-map type="value" column="LIST_TYPE"/>
</field>
<field name="loadId">
<jdbc-field-map type="value" column="LOAD_ID"/>
</field>
<field name="ofacAddress">
<jdbc-field-map type="one-many"
ref-column.LOAD_ID="LOAD_ID" table="OFAC.OFAC_ADDRESS"/>
</field>
<field name="ofacAlias">
<jdbc-field-map type="one-many"
ref-column.LOAD_ID="LOAD_ID" table="OFAC.OFAC_ALIAS"/>
</field>
<field name="ofacMains">
<jdbc-field-map type="one-many"
ref-column.LOAD_ID="LOAD_ID" table="OFAC.OFAC_MAIN"/>
</field>
<field name="ofacUsers">
<jdbc-field-map type="one-one" column.USER_ID="LOADED_BY"/>
</field>
<field name="runInfoLoadIdents">
<jdbc-field-map type="one-many"
ref-column.LOAD_ID="LOAD_ID" table="OFAC.RUN_INFO_LOAD_ID"/>
</field>
<field name="sunsetTime">
<jdbc-field-map type="value" column="SUNSET_TIME"/>
</field>
</class>
<class name="OfacAddress">
<jdbc-class-map type="base" table="OFAC.OFAC_ADDRESS"/>
<jdbc-version-ind type="state-image"/>
<field name="address">
<jdbc-field-map type="value" column="ADDRESS"/>
</field>
<field name="addressId">
<jdbc-field-map type="value" column="ADDRESS_ID"/>
</field>
<field name="addressMp1">
<jdbc-field-map type="value" column="ADDRESS_MP1"/>
</field>
<field name="addressMp2">
<jdbc-field-map type="value" column="ADDRESS_MP2"/>
</field>
<field name="city">
<jdbc-field-map type="value" column="CITY"/>
</field>
<field name="cityMp1">
<jdbc-field-map type="value" column="CITY_MP1"/>
</field>
<field name="cityMp2">
<jdbc-field-map type="value" column="CITY_MP2"/>
</field>
<field name="country">
<jdbc-field-map type="value" column="COUNTRY"/>
</field>
<field name="countryMp1">
<jdbc-field-map type="value" column="COUNTRY_MP1"/>
</field>
<field name="countryMp2">
<jdbc-field-map type="value" column="COUNTRY_MP2"/>
</field>
<field name="loadHistory">
<jdbc-field-map type="one-one" column.LOAD_ID="LOAD_ID"/>
</field>
<field name="loadId">
<jdbc-field-map type="value" column="LOAD_ID"/>
</field>
<field name="ofacMain">
<jdbc-field-map type="one-one" column.ID="ID"
column.LOAD_ID="LOAD_ID"/>
</field>
<field name="remarks">
<jdbc-field-map type="value" column="REMARKS"/>
</field>
</class>
<class name="OfacAlias">
<jdbc-class-map type="base" table="OFAC.OFAC_ALIAS"/>
<jdbc-version-ind type="state-image"/>
<field name="alias">
<jdbc-field-map type="value" column="ALIAS"/>
</field>
<field name="aliasId">
<jdbc-field-map type="value" column="ALIAS_ID"/>
</field>
<field name="aliasMp1">
<jdbc-field-map type="value" column="ALIAS_MP1"/>
</field>
<field name="aliasMp2">
<jdbc-field-map type="value" column="ALIAS_MP2"/>
</field>
<field name="aliasType">
<jdbc-field-map type="value" column="ALIAS_TYPE"/>
</field>
<field name="loadHistory">
<jdbc-field-map type="one-one" column.LOAD_ID="LOAD_ID"/>
</field>
<field name="loadId">
<jdbc-field-map type="value" column="LOAD_ID"/>
</field>
<field name="ofacMain">
<jdbc-field-map type="one-one" column.ID="ID"
column.LOAD_ID="LOAD_ID"/>
</field>
<field name="remarks">
<jdbc-field-map type="value" column="REMARKS"/>
</field>
</class>
<class name="OfacMain">
<jdbc-class-map type="base" table="OFAC.OFAC_MAIN"/>
<jdbc-version-ind type="state-image"/>
<field name="callSign">
<jdbc-field-map type="value" column="CALL_SIGN"/>
</field>
<field name="callSignMp1">
<jdbc-field-map type="value" column="CALL_SIGN_MP1"/>
</field>
<field name="callSignMp2">
<jdbc-field-map type="value" column="CALL_SIGN_MP2"/>
</field>
<field name="grt">
<jdbc-field-map type="value" column="GRT"/>
</field>
<field name="id">
<jdbc-field-map type="value" column="ID"/>
</field>
<field name="loadHistory">
<jdbc-field-map type="one-one" column.LOAD_ID="LOAD_ID"/>
</field>
<field name="loadId">
<jdbc-field-map type="value" column="LOAD_ID"/>
</field>
<field name="matchInfos">
<jdbc-field-map type="one-many" ref-column.ID="ID"
ref-column.LOAD_ID="LOAD_ID" table="OFAC.MATCH_INFO"/>
</field>
<field name="ofacAddress">
<jdbc-field-map type="one-many" ref-column.ID="ID"
ref-column.LOAD_ID="LOAD_ID" table="OFAC.OFAC_ADDRESS"/>
</field>
<field name="ofacAlias">
<jdbc-field-map type="one-many" ref-column.ID="ID"
ref-column.LOAD_ID="LOAD_ID" table="OFAC.OFAC_ALIAS"/>
</field>
<field name="pName">
<jdbc-field-map type="value" column="P_NAME"/>
</field>
<field name="pNameMp1">
<jdbc-field-map type="value" column="P_NAME_MP1"/>
</field>
<field name="pNameMp2">
<jdbc-field-map type="value" column="P_NAME_MP2"/>
</field>
<field name="program">
<jdbc-field-map type="value" column="PROGRAM"/>
</field>
<field name="remarks">
<jdbc-field-map type="value" column="REMARKS"/>
</field>
<field name="sName">
<jdbc-field-map type="value" column="S_NAME"/>
</field>
<field name="sNameMp1">
<jdbc-field-map type="value" column="S_NAME_MP1"/>
</field>
<field name="sNameMp2">
<jdbc-field-map type="value" column="S_NAME_MP2"/>
</field>
<field name="sdnType">
<jdbc-field-map type="value" column="SDN_TYPE"/>
</field>
<field name="ssn">
<jdbc-field-map type="value" column="SSN"/>
</field>
<field name="title">
<jdbc-field-map type="value" column="TITLE"/>
</field>
<field name="tonnage">
<jdbc-field-map type="value" column="TONNAGE"/>
</field>
<field name="vesselFlag">
<jdbc-field-map type="value" column="VESSEL_FLAG"/>
</field>
<field name="vesselOwner">
<jdbc-field-map type="value" column="VESSEL_OWNER"/>
</field>
<field name="vesselOwnerMp1">
<jdbc-field-map type="value" column="VESSEL_OWNER_MP1"/>
</field>
<field name="vesselOwnerMp2">
<jdbc-field-map type="value" column="VESSEL_OWNER_MP2"/>
</field>
<field name="vesselType">
<jdbc-field-map type="value" column="VESSEL_TYPE"/>
</field>
</class>
</package>
</mapping>
Als, just for giggles, the JDO file
<?xml version="1.0" encoding="UTF-8"?>
<jdo>
<package name="com.everbank.finance.ofac3.jdo.sdn">
<class name="LoadHistory"
objectid-class="com.everbank.finance.ofac3.jdo.LoadHistoryId">
<field name="loadId" primary-key="true"/>
<field name="ofacAddress">
<collection element-type="OfacAddress"/>
<extension vendor-name="kodo" key="inverse-owner"
value="loadHistory"/>
</field>
<field name="ofacAlias">
<collection element-type="OfacAlias"/>
<extension vendor-name="kodo" key="inverse-owner"
value="loadHistory"/>
</field>
<field name="ofacMains">
<collection element-type="OfacMain"/>
<extension vendor-name="kodo" key="inverse-owner"
value="loadHistory"/>
</field>
<field name="runInfoLoadIdents">
<collection
element-type="com.everbank.finance.ofac3.jdo.match.RunInfoLoadIdent"/>
<extension vendor-name="kodo" key="inverse-owner"
value="loadHistory"/>
</field>
</class>
<class name="OfacAddress"
objectid-class="com.everbank.finance.ofac3.jdo.OfacAddressId">
<field name="addressId" primary-key="true"/>
<field name="loadId" primary-key="true"/>
</class>
<class name="OfacAlias"
objectid-class="com.everbank.finance.ofac3.jdo.OfacAliasId">
<field name="aliasId" primary-key="true"/>
<field name="loadId" primary-key="true"/>
</class>
<class name="OfacMain"
objectid-class="com.everbank.finance.ofac3.jdo.OfacMainId">
<field name="id" primary-key="true"/>
<field name="loadId" primary-key="true"/>
<field name="matchInfos">
<collection
element-type="com.everbank.finance.ofac3.jdo.match.MatchInfo"/>
<extension vendor-name="kodo" key="inverse-owner"
value="ofacMain"/>
</field>
<field name="ofacAddress">
<collection element-type="OfacAddress"/>
<extension vendor-name="kodo" key="inverse-owner"
value="ofacMain"/>
</field>
<field name="ofacAlias">
<collection element-type="OfacAlias"/>
<extension vendor-name="kodo" key="inverse-owner"
value="ofacMain"/>
</field>
</class>
</package>
Greg Campbell wrote:
Hi Tim,
Could you send the your mapping information corresponding to the class that
maps to table: OFAC_ADDRESS. In particular, I'm looking for what fields
map to OFAC_ADDRESS.LOAD_ID. This will hopefully give us a hint as to
what's going wrong.
Thanks,
Greg
"Tim Holloway" <[email protected]> wrote in message
news:[email protected]...
I have a situation where I'm trying to assemble a web of data and not make
JDO mad.
<snipped>

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tableC (col1 int identity(1,1) ,
col2, col3) -- col2 has the foreign key relation with tableB.col1
tableD (col1 int identity(1,1) , col2, col3) -- col2 has the foreign key relation with tableC.col1
please advise me.
Thanks in advance

Try the below:
/********************************SAMPLE TARGET***************************************************************/
Use MSDNSamples
create table TableA(LevelValueId int identity(1,1) primary key, name varchar(100))
Insert into TableA(name) Select 'R1'
Insert into TableA(name) Select 'R2'
create Table TableB(ChildId int identity(100,1),name varchar(100), LevelValueID int references TableA(LevelValueId))
Insert into TableB(name,LevelValueID) Select 'Childname1',1
/********************************SAMPLE TARGET***************************************************************/
/********************************SAMPLE SOURCE***************************************************************/
Use Sample
create table TableA(LevelValueId int identity(1,1) primary key, name varchar(100))
Insert into TableA(name) Select 'C1'
Insert into TableA(name) Select 'C2'
create Table TableB(ChildId int identity(100,1),name varchar(100), LevelValueID int references TableA(LevelValueId))
Insert into TableB(name,LevelValueID) Select 'Kidname1',1
/********************************SAMPLE SOURCE***************************************************************/
USe MSDNSamples
/********************************MIGRATION INTERMEDIATE TABLE***************************************************************/
--Migration table
Create table Mg_TableA(LevelValueId int, NewValueId int)
/********************************MIGRATION INTERMEDIATE TABLE***************************************************************/
/********************************ACTUAL MIGRATION FOR MASTER TABLE***************************************************************/
MERGE INTO TableA
USING sample.dbo.TableA AS tv
ON 1 = 0
WHEN NOT MATCHED THEN
INSERT(name) Values(tv.name)
Output tv.levelValueId ,inserted.LevelValueid INTO
Mg_TableA;
/********************************ACTUAL MIGRATION FOR MASTER TABLE***************************************************************/
/********************************ACTUAL MIGRATION FOR CHILD TABLE***************************************************************/
Insert into TableB (name,LevelValueID)
Select A.name,B.NewValueId From sample.dbo.TableB A
Inner join Mg_TableA B on A.LevelValueID = B.LevelValueId
/********************************ACTUAL MIGRATION FOR CHILD TABLE***************************************************************/
/********************************TEST THE VALUES***************************************************************/
Select * From TableA
Select * From Mg_TableA
Select * From TableB
/********************************TEST THE VALUES***************************************************************/
Drop table TableB,Tablea,Mg_TableA
Use Sample
Drop Table TableB,Tablea

Using one user account table across multiple databases but account used as a foreign key

I want to use one user account table from one database and use it across a couple other databases. The problem is that I want some tables to use the primary key from the user account table as a foreign key to access the data when the user logs in. Is this
the right way of going about it? Do I have to create a user account table in all my databases? What is the best practice to handle this problem? Thanks in advance.

You can use Triggers or using replication.
more info:
Add Foreign Key relationship between two Databases
SQL Server Replication
Saeid Hasani [sqldevelop]

HT204387 Hello! Can anyone teach me how to connect iphone 4S to ipad retina using bluetooth. I tried, but the devices won't discover each other at all. I just wanted to connect to share contact details so I don't have to key in one by one. Many thanks

Hello!
Can anyone teach me how to connect iphone 4S to ipad retina using bluetooth. I tried, but the devices won't discover each other at all. I just wanted to connect to share contact details so I don't have to key in one by one.
Many thanks
Injin

You need to go to the App stores and find compatible apps. iOS device do not natively have to ability to transfer info to a computer via BT to a computer.
With iOS 8 you can use AirDrop

Two foreign keys in one single table

i have a table 'customers' with a 'customerid' as its primary key and another table 'drinks' with a primary key 'drinkid'.now i have to create a table 'customerdrink' with its primary key as 'customerdrinkid' , and 'customerid' & 'drinkid' as
its two foreign keys.how can i write the script in sql server to connect the first two tables with the last one ie how can i relate one primary key(customerdrinkid) with two foreign keys(customerid and drinkid) in a single query?pls help me out!!!

>> I have a table 'customers' ...<<
How nice for you, but where is the DDL? Oh, I see you are the Great and Wonderful “shubha2323” who does not have to follow Netiquette or treat anyone with minimal respect when he demands they do his work him!
Where is what you already tried? Oh, the Great and Wonderful “shubha2323” does not try anything! His forum slaves should serve him!
Do you understand how rude you are when you ignore the basic forum rules?
CREATE TABLE Customers
(customer_id CHAR(16) NOT NULL PRIMARY KEY,
CREATE TABLE Drinks
(drink_id CHAR(10) NOT NULL PRIMARY KEY,
>> with a customer_id as its primary key and another table Drinks with a primary key drink_id. now I have to create a table 'customer_drink' with its primary key as 'customer_drink_id' <<
You do not know what single quotes mean in ANSI/ISO Standard SQL, or how to follow ISO-11179 Standards for data element names. And this is a stupid idea. You have a key!! Do you know what a key is?
CREATE TABLE Drink_Preferences
(customer_id CHAR(16) NOT NULL
REFERENCES Customers(customer_id)
ON DELETE CASCADE,
drink_id CHAR(10) NOT NULL
REFERENCES Drinks(drink_id)
ON DELETE CASCADE,
PRIMARY KEY (customer_id, drink_id),
etc
Stop posting until you have manners and you have read a book on RDBMS.
--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
in Sets / Trees and Hierarchies in SQL

Interactive alv report......with one table having more than 2 foreign key

*& Report ZRAHUL_ALV_SFLIGHT2
REPORT zrahul_alv_sflight2 NO STANDARD PAGE HEADING.
TYPE-POOLS slis.
DATA: fcat TYPE slis_fieldcat_alv,
      it_fcat TYPE slis_t_fieldcat_alv,
      fcat1 TYPE slis_fieldcat_alv,
      it_fcat1 TYPE slis_t_fieldcat_alv,
      fcat2 TYPE slis_fieldcat_alv,
      it_fcat2 TYPE slis_t_fieldcat_alv,
      lout TYPE slis_layout_alv,
      head TYPE slis_listheader,
      it_head TYPE slis_t_listheader.
TABLES: SFLIGHT, SCURX, SAPLANE.
DATA: BEGIN OF it_sflight OCCURS 0,
        carrid TYPE sflight-carrid,      "PK
        connid TYPE sflight-connid,
        fldate TYPE sflight-fldate,
        currency TYPE sflight-currency,        "FK 1
        planetype TYPE sflight-planetype,      "FK 2
      END OF it_sflight.
DATA: BEGIN OF it_scurx OCCURS 0,
        currkey TYPE scurx-currkey,        "PK 1
        currdec TYPE scurx-currdec,
      END OF it_scurx.
DATA: BEGIN OF it_saplane OCCURS 0,
        planetype TYPE saplane-planetype,      "PK 2
        seatsmax TYPE saplane-seatsmax,
        tankcap TYPE saplane-tankcap,
        weight TYPE saplane-weight,
      END OF it_saplane.
SELECTION-SCREEN: BEGIN OF BLOCK blk WITH FRAME TITLE t.
SELECT-OPTIONS: id FOR it_sflight-carrid,
                id2 FOR it_sflight-connid.
SELECTION-SCREEN END OF BLOCK blk.
INITIALIZATION.
t = 'enter required criterias'.
lout-zebra = 'X'.
START-OF-SELECTION.
SELECT * FROM sflight INTO CORRESPONDING FIELDS OF TABLE it_sflight
            WHERE carrid IN id AND connid IN id2.
END-OF-SELECTION.
****FCAT F0R IT_SFLIGHT
fcat-col_pos = 1.
fcat-tabname = 'IT_SFLIGHT'.
fcat-fieldname = 'CARRID'.
fcat-outputlen = 10.
fcat-seltext_m = 'PLANE ID'.
APPEND fcat TO it_fcat.
CLEAR fcat.
fcat-col_pos = 2.
fcat-tabname = 'IT_SFLIGHT'.
fcat-fieldname = 'CONNID'.
fcat-outputlen = 10.
fcat-seltext_m = 'CONN ID'.
APPEND fcat TO it_fcat.
CLEAR fcat.
fcat-col_pos = 3.
fcat-tabname = 'IT_SFLIGHT'.
fcat-fieldname = 'FLDATE'.
fcat-outputlen = 10.
fcat-seltext_m = 'FLDATE'.
APPEND fcat TO it_fcat.
CLEAR fcat.
fcat-col_pos = 4.
fcat-tabname = 'IT_SFLIGHT'.
fcat-fieldname = 'CURRENCY'.
fcat-outputlen = 10.
fcat-seltext_m = 'CURRENCY'.
APPEND fcat TO it_fcat.
CLEAR fcat.
fcat-col_pos = 5.
fcat-tabname = 'IT_SFLIGHT'.
fcat-fieldname = ';PLANETYPE'.
fcat-outputlen = 10.
fcat-seltext_m = 'PLANETYPE'.
APPEND fcat TO it_fcat.
CLEAR fcat.
*****GRID DISPLAY
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
   EXPORTING
    I_INTERFACE_CHECK                 = ' '
    I_BYPASSING_BUFFER                = ' '
    I_BUFFER_ACTIVE                   = ' '
    i_callback_program                = 'ZRAHUL_ALV_SFLIGHT2'
    I_CALLBACK_PF_STATUS_SET          = ' '
     i_callback_user_command           = 'CLICK'
     i_callback_top_of_page            = 'HEADER'
    I_CALLBACK_HTML_TOP_OF_PAGE       = ' '
    I_CALLBACK_HTML_END_OF_LIST       = ' '
    I_STRUCTURE_NAME                  =
    I_BACKGROUND_ID                   = ' '
     i_grid_title                      = 'GRID 1'
    I_GRID_SETTINGS                   =
     is_layout                         = lout
     it_fieldcat                       = it_fcat
    IT_EXCLUDING                      =
    IT_SPECIAL_GROUPS                 =
    IT_SORT                           =
    IT_FILTER                         =
    IS_SEL_HIDE                       =
    I_DEFAULT                         = 'X'
    I_SAVE                            = ' '
    IS_VARIANT                        =
    IT_EVENTS                         =
    IT_EVENT_EXIT                     =
    IS_PRINT                          =
    IS_REPREP_ID                      =
    I_SCREEN_START_COLUMN             = 0
    I_SCREEN_START_LINE               = 0
    I_SCREEN_END_COLUMN               = 0
    I_SCREEN_END_LINE                 = 0
    I_HTML_HEIGHT_TOP                 = 0
    I_HTML_HEIGHT_END                 = 0
    IT_ALV_GRAPHICS                   =
    IT_HYPERLINK                      =
    IT_ADD_FIELDCAT                   =
    IT_EXCEPT_QINFO                   =
    IR_SALV_FULLSCREEN_ADAPTER        =
IMPORTING
    E_EXIT_CAUSED_BY_CALLER           =
    ES_EXIT_CAUSED_BY_USER            =
    TABLES
      t_outtab                          = it_sflight
EXCEPTIONS
    PROGRAM_ERROR                     = 1
    OTHERS                            = 2
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
*&      Form header
      text
FORM header.
CLEAR it_head.
head-typ = 'H'.
head-info = 'KINGFISHER'.
APPEND head TO it_head.
head-typ = 'S'.
head-key = 'KEY'.
head-info = 'AIRLINES'.
APPEND head TO it_head.
CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
    EXPORTING
      it_list_commentary       = it_head
     i_logo                   = 'KING_LOGO'
I_END_OF_LIST_GRID       =
I_ALV_FORM               =
ENDFORM.                    "header
*&      Form CLICK
      text
     -->OK         text
     -->SEL        text
FORM click USING ok TYPE sy-ucomm
                 sel TYPE slis_selfield.
CLEAR it_fcat.
CASE ok.
    WHEN '&IC1'.
********SAPLANE RELATION
      READ TABLE it_sflight INDEX sel-tabindex.
      SELECT * FROM saplane INTO CORRESPONDING FIELDS OF TABLE it_saplane WHERE planetype = it_sflight-planetype.
      fcat-col_pos = 1.
      fcat-tabname = 'IT_SAPLANE'.
      fcat-fieldname = 'PLANETYPE'.
      fcat-outputlen = 10.
      fcat-seltext_m = 'TYPE OF PLANE'.
      APPEND fcat TO it_FCAT.
      CLEAR fcat.
      fcat-col_pos = 2.
      fcat-tabname = 'IT_SAPLANE'.
      fcat-fieldname = 'SEATSMAX'.
      fcat-outputlen = 10.
      fcat-seltext_m = 'MAX SEATS'.
      APPEND fcat TO it_FCAT.
      CLEAR fcat.
      fcat-col_pos = 3.
      fcat-tabname = 'IT_SAPLANE'.
      fcat-fieldname = 'TANKCAP'.
      fcat-outputlen = 10.
      fcat-seltext_m = 'FUEL TANK CAPACITY'.
      APPEND fcat TO it_FCAT.
      CLEAR fcat.
      fcat-col_pos = 4.
      fcat-tabname = 'IT_SAPLANE'.
      fcat-fieldname = 'WEIGHT'.
      fcat-outputlen = 10.
      fcat-seltext_m = 'WEIGHT F PLANE'.
      APPEND fcat TO it_FCAT.
      CLEAR fcat.
      CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
       EXPORTING
I_INTERFACE_CHECK                 = ' '
I_BYPASSING_BUFFER                = ' '
I_BUFFER_ACTIVE                   = ' '
         i_callback_program                = 'ZRAHUL_ALV_SFLIGHT2'
I_CALLBACK_PF_STATUS_SET          = ' '
I_CALLBACK_USER_COMMAND           = ' '
         i_callback_top_of_page            = 'HEADER'
I_CALLBACK_HTML_TOP_OF_PAGE       = ' '
I_CALLBACK_HTML_END_OF_LIST       = ' '
I_STRUCTURE_NAME                  =
I_BACKGROUND_ID                   = ' '
         i_grid_title                      = 'GRID 2'
I_GRID_SETTINGS                   =
         is_layout                         = LOUT
         it_fieldcat                       = IT_FCAT
IT_EXCLUDING                      =
IT_SPECIAL_GROUPS                 =
IT_SORT                           =
IT_FILTER                         =
IS_SEL_HIDE                       =
I_DEFAULT                         = 'X'
I_SAVE                            = ' '
IS_VARIANT                        =
IT_EVENTS                         =
IT_EVENT_EXIT                     =
IS_PRINT                          =
IS_REPREP_ID                      =
I_SCREEN_START_COLUMN             = 0
I_SCREEN_START_LINE               = 0
I_SCREEN_END_COLUMN               = 0
I_SCREEN_END_LINE                 = 0
I_HTML_HEIGHT_TOP                 = 0
I_HTML_HEIGHT_END                 = 0
IT_ALV_GRAPHICS                   =
IT_HYPERLINK                      =
IT_ADD_FIELDCAT                   =
IT_EXCEPT_QINFO                   =
IR_SALV_FULLSCREEN_ADAPTER        =
IMPORTING
E_EXIT_CAUSED_BY_CALLER           =
ES_EXIT_CAUSED_BY_USER            =
        tables
          t_outtab                          = IT_SAPLANE
EXCEPTIONS
PROGRAM_ERROR                     = 1
OTHERS                            = 2
      IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
      ENDIF.
*******SCURX RELATION
                CLEAR: IT_FCAT2,IT_FCAT.
                READ TABLE IT_SFLIGHT INDEX SEL-TABINDEX.
                  SELECT * FROM SCURX INTO CORRESPONDING FIELDS OF TABLE IT_SCURX WHERE CURRKEY = IT_SFLIGHT-CURRENCY.
                  FCAT2-COL_POS = 1.
                  FCAT2-TABNAME = 'IT_SCURX'.
                  FCAT2-FIELDNAME = 'CURRKEY'.
                  FCAT2-OUTPUTLEN = 15.
                  FCAT2-SELTEXT_M = 'CURRENCY'.
                  APPEND FCAT2 TO IT_FCAT2.
                  CLEAR FCAT2.
                  FCAT2-COL_POS = 2.
                  FCAT2-TABNAME = 'IT_SCURX'.
                  FCAT2-FIELDNAME = 'CURRDEC'.
                  FCAT2-OUTPUTLEN = 15.
                  FCAT2-SELTEXT_M = 'CURRENCY DEC'.
                  APPEND FCAT2 TO IT_FCAT2.
                  CLEAR FCAT2.
                  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
                   EXPORTING
                    I_INTERFACE_CHECK                 = ' '
                    I_BYPASSING_BUFFER                = ' '
                    I_BUFFER_ACTIVE                   = ' '
                     I_CALLBACK_PROGRAM                = 'ZRAHUL_ALV_SFLIGHT2'
                    I_CALLBACK_PF_STATUS_SET          = ' '
                    I_CALLBACK_USER_COMMAND           = ' '
                     I_CALLBACK_TOP_OF_PAGE            = 'HEADER'
                    I_CALLBACK_HTML_TOP_OF_PAGE       = ' '
                    I_CALLBACK_HTML_END_OF_LIST       = ' '
                    I_STRUCTURE_NAME                  =
                    I_BACKGROUND_ID                   = ' '
                     I_GRID_TITLE                      = 'GRID 3'
                    I_GRID_SETTINGS                   =
                     IS_LAYOUT                         = LOUT
                     IT_FIELDCAT                       = IT_FCAT2
                    IT_EXCLUDING                      =
                    IT_SPECIAL_GROUPS                 =
                    IT_SORT                           =
                    IT_FILTER                         =
                    IS_SEL_HIDE                       =
                    I_DEFAULT                         = 'X'
                    I_SAVE                            = ' '
                    IS_VARIANT                        =
                    IT_EVENTS                         =
                    IT_EVENT_EXIT                     =
                    IS_PRINT                          =
                    IS_REPREP_ID                      =
                    I_SCREEN_START_COLUMN             = 0
                    I_SCREEN_START_LINE               = 0
                    I_SCREEN_END_COLUMN               = 0
                    I_SCREEN_END_LINE                 = 0
                    I_HTML_HEIGHT_TOP                 = 0
                    I_HTML_HEIGHT_END                 = 0
                    IT_ALV_GRAPHICS                   =
                    IT_HYPERLINK                      =
                    IT_ADD_FIELDCAT                   =
                    IT_EXCEPT_QINFO                   =
                    IR_SALV_FULLSCREEN_ADAPTER        =
                  IMPORTING
                    E_EXIT_CAUSED_BY_CALLER           =
                    ES_EXIT_CAUSED_BY_USER            =
                    TABLES
                      t_outtab                          = IT_SCURX
                  EXCEPTIONS
                    PROGRAM_ERROR                     = 1
                    OTHERS                            = 2
                  IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
                  ENDIF.
ENDCASE.
ENDFORM.                    "click
this program runs fine when one navigation is used......but when both the foreign keys come in picture then its shows sequencialy...cant we jump directly to the third one which i require....
plz guide me.thank u.

in short i want help on table having multiple foreign keys....and how to navigate in this when working on ALV reports.....
its easy when using interactive reports by using sy-cucol and sy-curow.....
reply asap.
thank u in advance.

BC4J models foreign key associations as 1-to-1 instead of 1-to-many

I've been using JDeveloper to generate a BC4J layer against a schema for several months as the schema has evolved. It has always modeled foreign key associations as 1-to-many, but now it is suddenly modeling foreign keys as 1-to-1, which is nonsense. A lot of other associations are also wrong.
This happened to a schema that we've been using JDeveloper/BC4J on for months with no such problems as the schema has evolved. The database has changed slightly, but there was no change made to the particular constraints that are now modeled incorrectly.
If I point JDeveloper to an older version of the same schema it generates the correct 1-to-many relationship. Something in the latest schema must be throwing JDeveloper/BC4J off.
What do I have our data modelers look for in this case?
Why would BC4J ever model a foreign key association as 1-to-1?

I've been using JDeveloper to generate a BC4J layer against a schema for several months as the schema has evolved. It has always modeled foreign key associations as 1-to-many, but now it is suddenly modeling foreign keys as 1-to-1, which is nonsense. A lot of other associations are also wrong.
This happened to a schema that we've been using JDeveloper/BC4J on for months with no such problems as the schema has evolved. The database has changed slightly, but there was no change made to the particular constraints that are now modeled incorrectly.
If I point JDeveloper to an older version of the same schema it generates the correct 1-to-many relationship. Something in the latest schema must be throwing JDeveloper/BC4J off.
What do I have our data modelers look for in this case?
Why would BC4J ever model a foreign key association as 1-to-1?

One-to-many/foreign keys howto

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