Deleting a row from custom ztable

Hi All,
I have User interphase screens for a custom ztable. When user presses 'DELETE' button for a record then it will delete that record from the table. How can I change this so that when user presses 'DELETE' it should just flag that record for deletion not the actual deletion from the table.
I will appriciate your help.
WHEN 'DELE'.
      wa-kunnr   = zsdcoop-kunnr.
      wa-pfnum   = zsdcoop-pfnum.
      wa-trnum   = zsdcoop-trnum.
      wa-coopamt = zsdcoop-coopamt.
      wa-coopind = zsdcoop-coopind.
      wa-subdate = zsdcoop-subdate.
      wa-deldate = zsdcoop-deldate.
      wa-reason = zsdcoop-reason.
      wa-subdate = zsdcoop-subdate.
      DELETE zsdcoop FROM wa.
      CLEAR: wa, zsdcoop.
Thanks,
Neelu.

Create a new field for that custom table . Say DELFLAG Direct type Char of size 1.
WHEN 'DELE'.
wa-kunnr = zsdcoop-kunnr.
wa-pfnum = zsdcoop-pfnum.
wa-trnum = zsdcoop-trnum.
wa-coopamt = zsdcoop-coopamt.
wa-coopind = zsdcoop-coopind.
wa-subdate = zsdcoop-subdate.
wa-deldate = zsdcoop-deldate.
wa-reason = zsdcoop-reason.
wa-subdate = zsdcoop-subdate.
wa-DELFLAG = 'X'.
Update zsdcoop FROM wa.
CLEAR: wa, zsdcoop.
This should help.

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Message Edited by MikeS81 on 04-18-2008 05:19 PM
Attachments:
Unbenannt.PNG ‏22 KB

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}Take a look at the actionPerfformed method. One way of doing it works, one doesn't. Just trying to understand why me getting a handle to the tableModel through the table doesn't work.
Message was edited by:
deadseasquirrels

It gives me a run-time error Well then your question should be "why do I get this run-time error" and then you would quote the error. Be more descriptive. "It doesn't work" is not descriptive.
table.getModel().removeRow(selectedRow);I don't use JDK1.5 either. But if you are saying that the above line compiles cleanly with JDK1.5 (because of the auto-boxing feature, or whatever its called), then I see no reason why the code wouldn't work since it recognizes the class as a DefaultTableModel.
Presumably you commented out the other line so you don't try to delete the row twice. Otherwise you might be getting a indexing error.

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user52
Message was edited by:
user52
Message was edited by:
user52

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Here is the Child.xml for the Child EO:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE Entity SYSTEM "jbo_03_01.dtd">

<Entity
xmlns="http://xmlns.oracle.com/bc4j"
Name="Child"
Version="11.1.1.55.36"
AliasName="Child"
BindingStyle="OracleName"
UseGlueCode="false">
<DesignTime>
    <AttrArray Name="_publishEvents"/>
</DesignTime>
<Attribute
    Name="ChildPk"
    IsUpdateable="while_insert"
    IsQueriable="false"
    IsPersistent="false"
    IsNotNull="true"
    ColumnName="CHILDPK"
    SQLType="VARCHAR"
    Type="java.lang.String"
    ColumnType="$none$"
    PrimaryKey="true"/>
<Attribute
    Name="ChildDesc"
    IsQueriable="false"
    IsPersistent="false"
    ColumnName="$none$"
    SQLType="VARCHAR"
    Type="java.lang.String"
    ColumnType="$none$"/>
<Attribute
    Name="ParentPk"
    IsQueriable="false"
    IsPersistent="false"
    IsNotNull="true"
    ColumnName="$none$"
    SQLType="VARCHAR"
    Type="java.lang.String"
    ColumnType="$none$"/>
</Entity>==============================================================================
Here is the ChildParentAssoc.xml for the Association between Parent and Child EOs:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE Association SYSTEM "jbo_03_01.dtd">

<Association
xmlns="http://xmlns.oracle.com/bc4j"
Name="ChildParentAssoc"
Version="11.1.1.55.36">
<DesignTime>
    <Attr Name="_isCodegen" Value="true"/>
</DesignTime>
<AssociationEnd
    Name="Parent"
    Cardinality="1"
    Source="true"
    Owner="model.eo.Parent"
    DeleteContainee="true"
    LockLevel="NONE"
    ExposedAccessor="false">
    <DesignTime>
      <Attr Name="_aggregation" Value="0"/>
      <Attr Name="_finderName" Value="Parent"/>
      <Attr Name="_isUpdateable" Value="true"/>
      <Attr Name="_minCardinality" Value="1"/>
    </DesignTime>
    <AttrArray Name="Attributes">
      <Item Value="model.eo.Parent.ParentPk"/>
    </AttrArray>
</AssociationEnd>
<AssociationEnd
    Name="Child"
    Cardinality="-1"
    Owner="model.eo.Child"
    HasOwner="true">
    <DesignTime>
      <Attr Name="_aggregation" Value="0"/>
      <Attr Name="_finderName" Value="Child"/>
      <Attr Name="_isUpdateable" Value="true"/>
    </DesignTime>
    <AttrArray Name="Attributes">
      <Item Value="model.eo.Child.ParentPk"/>
    </AttrArray>
</AssociationEnd>
</Association>==============================================================================
Here is the ParentEv.xml for the ParentEv VO:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE ViewObject SYSTEM "jbo_03_01.dtd">

<ViewObject
xmlns="http://xmlns.oracle.com/bc4j"
Name="ParentEv"
Version="11.1.1.55.36"
BindingStyle="OracleName"
CustomQuery="true"
RowClass="model.vo.ev.ParentEvRowImpl"
ComponentClass="model.vo.ev.ParentEvImpl"
PageIterMode="Full"
UseGlueCode="false">
<DesignTime>
    <Attr Name="_codeGenFlag2" Value="Access|Coll"/>
    <Attr Name="_isExpertMode" Value="true"/>
    <Attr Name="_isCodegen" Value="true"/>
</DesignTime>
<EntityUsage
    Name="Parent"
    Entity="model.eo.Parent"/>
<ViewAttribute
    Name="ParentDesc"
    IsSelected="false"
    IsQueriable="false"
    IsPersistent="false"
    PrecisionRule="true"
    Precision="255"
    EntityAttrName="ParentDesc"
    EntityUsage="Parent"
    AliasName="PARENTDESC"/>
<ViewAttribute
    Name="ParentPk"
    IsQueriable="false"
    IsPersistent="false"
    PrecisionRule="true"
    EntityAttrName="ParentPk"
    EntityUsage="Parent"/>
<ViewLinkAccessor
    Name="ChildEv"
    ViewLink="model.vo.vl.ChildEvParentEvVl"
    Type="oracle.jbo.RowIterator"
    IsUpdateable="false"/>
</ViewObject>==============================================================================
Here is the ChildEv.xml for the ChildEv VO:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE ViewObject SYSTEM "jbo_03_01.dtd">

<ViewObject
xmlns="http://xmlns.oracle.com/bc4j"
Name="ChildEv"
Version="11.1.1.55.36"
BindingStyle="OracleName"
CustomQuery="true"
RowClass="model.vo.ev.ChildEvRowImpl"
ComponentClass="model.vo.ev.ChildEvImpl"
PageIterMode="Full"
UseGlueCode="false">
<DesignTime>
    <Attr Name="_codeGenFlag2" Value="Access|Coll"/>
    <Attr Name="_isExpertMode" Value="true"/>
    <Attr Name="_isCodegen" Value="true"/>
</DesignTime>
<EntityUsage
    Name="Child"
    Entity="model.eo.Child"/>
<ViewAttribute
    Name="ChildDesc"
    IsSelected="false"
    IsQueriable="false"
    IsPersistent="false"
    PrecisionRule="true"
    Precision="255"
    EntityAttrName="ChildDesc"
    EntityUsage="Child"
    AliasName="CHILDDESC"/>
<ViewAttribute
    Name="ChildPk"
    IsUpdateable="while_insert"
    IsQueriable="false"
    IsPersistent="false"
    IsNotNull="true"
    PrecisionRule="true"
    EntityAttrName="ChildPk"
    EntityUsage="Child"/>
<ViewAttribute
    Name="ParentPk"
    IsQueriable="false"
    IsPersistent="false"
    IsNotNull="true"
    PrecisionRule="true"
    EntityAttrName="ParentPk"
    EntityUsage="Child"/>
</ViewObject>==============================================================================
Here is the ChildEvParentEvVl.xml for the view link between ParentEv and ChildEv VOs:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE ViewLink SYSTEM "jbo_03_01.dtd">

<ViewLink
xmlns="http://xmlns.oracle.com/bc4j"
Name="ChildEvParentEvVl"
Version="11.1.1.55.36">
<DesignTime>
    <Attr Name="_isCodegen" Value="true"/>
</DesignTime>
<ViewLinkDefEnd
    Name="ParentEv"
    Cardinality="1"
    Owner="model.vo.ev.ParentEv"
    Source="true">
    <DesignTime>
      <Attr Name="_finderName" Value="ParentEv"/>
      <Attr Name="_isUpdateable" Value="true"/>
    </DesignTime>
    <AttrArray Name="Attributes">
      <Item Value="model.vo.ev.ParentEv.ParentPk"/>
    </AttrArray>
</ViewLinkDefEnd>
<ViewLinkDefEnd
    Name="ChildEv"
    Cardinality="-1"
    Owner="model.vo.ev.ChildEv">
    <DesignTime>
      <Attr Name="_finderName" Value="ChildEv"/>
      <Attr Name="_isUpdateable" Value="true"/>
    </DesignTime>
    <AttrArray Name="Attributes">
      <Item Value="model.vo.ev.ChildEv.ParentPk"/>
    </AttrArray>
</ViewLinkDefEnd>
</ViewLink>

Deleting a row from a table containing CLOB as one of the columns

When i delete a row from a table which contains a CLOB (internal clob) i.e. CLOB or BLOB column, Will the CLOB data will also be deleted ? I understand that what exactly stored in the CLOB column is the clob locator which points to the actual data.
So, when I delete this row, the clob locator will be deleted, but will the actual data what this locator is pointing to is also deleted ??? if not what is the process to delete the data the locator is pointing to when the row containing the locator is deleted ? If this is not happening then the actual data might become an orphan data which nobody has access to, will automatic garbage cleaning occurs on a frequent intravels to delete unaddressed data residing on the database server ?
Thanks in advance for the help, can email me at [email protected] alternatively.
Regards,
Srinivasa C.

Michael,
Thanks very much for your inputs, here are the results i got when i tried the way you explained in your answer, the TRUNCATE command made the actual size back to normal, but the delete is not the same, so, how can i delete the data that a particular clob locator may point to ?
truncate would delete all the rows of the table, which might not serve my purpose, i would like to delete a row and also it's associated clob data from the database! is there anyway to do this ?
is there any limitation on the ool_sample size? i am basically a c++ programmer, i am looking for some function like FREE which would free the allocated memory to the clob once the locator is deleted.
your help is greatly appreciated - Thanks!
:-) Srini.
==========================
My Results:
==========================
SQL> create table sample (
2 id integer primary key,
3 the_data CLOB default empty_clob() )
4 lob (the_data) store as ool_sample;
Table created.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
20K
SAMPLE
10K
SQL> select count(*) from sample;
COUNT(*)
0
SQL> begin
2 for i in 1..1000
3 loop
4 insert into sample values (i, RPAD('some data', 4000) );
5 end loop;
6 end;
7 /
PL/SQL procedure successfully completed.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
6420K
SAMPLE
70K
SQL> delete sample;
1000 rows deleted.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
6420K
SAMPLE
70K
SQL> commit;
Commit complete.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
6420K
SAMPLE
70K
SQL> begin
2 for i in 1..1000
3 loop
4 insert into sample values (i, rpad('some data', 4000));
5 end loop;
6 end;
7 /
PL/SQL procedure successfully completed.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
9616K
SAMPLE
70K
SQL> truncate table sample;
Table truncated.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
20K
SAMPLE
10K

Issue while deleting a row from a table

Dear friends,
i am getting an issue while deleting a row from a table, pls check screen shots , the first screen shot is my table contents
when i delete 2 row , the second row is deleting properly like below screen shot
but i want like below screen shot , Col1 contents should be like pic 1 . could any one pls let me know how to solve this issue.
Thanks
Vijaya

Hi vijaya,
please try this code, it will help you.
DATA : it_rows TYPE wdr_context_element_set,
          wa_rows LIKE LINE OF it_rows.
   DATA lo_nd_table TYPE REF TO if_wd_context_node.
    DATA lt_table TYPE wd_this->elements_table.
   DATA lo_el_table TYPE REF TO if_wd_context_element.
   DATA ls_vbap TYPE wd_this->element_table.
DATA: ld_index TYPE i.
data value TYPE sy-index.
* navigate from <CONTEXT> to <table> via lead selection
   lo_nd_table= wd_context->get_child_node( name = wd_this->wdctx_table ).
* @TODO handle non existant child
* IF lo_nd_table IS INITIAL.
* ENDIF.
* get element via lead selection
* alternative access via index
* lo_el_table = lo_nd_table->get_element( index = 1 ).
* @TODO handle not set lead selection
   IF lo_el_table IS INITIAL.
   ENDIF.
* navigate from <CONTEXT> to <table> via lead selection
   lo_nd_table = wd_context->get_child_node( name = wd_this->wdctx_table ).
* @TODO handle non existant child
* IF lo_nd_table IS INITIAL.
* ENDIF.
   lo_nd_table->get_static_attributes_table( IMPORTING table = lt_table ).
* @TODO handle non existant child
* IF lo_nd_table IS INITIAL.
* ENDIF.
** @TODO compute values
** e.g. call a model function
* navigate from <CONTEXT> to <table> via lead selection
   lo_nd_table = wd_context->get_child_node( name = wd_this->wdctx_table ).
* @TODO handle non existant child
* IF lo_nd_table IS INITIAL.
* ENDIF.
** @TODO compute values
** e.g. call a model function
it_rows = lo_nd_table>get_selected_elements( ).
   CALL METHOD lo_nd_table->GET_LEAD_SELECTION_INDEX
   RECEIVING
     INDEX = value .
LOOP AT it_rows INTO wa_rows.
     CALL METHOD wa_rows->get_static_attributes
       IMPORTING
              static_attributes = ls_table.
     READ TABLE lt_table INTO ls_table WITH KEY col1 = ls_table-col1.
      ld_index = value.
          ENDLOOP.
   CLEAR : ls_table-col2,
         ls_table-col2.
   MODIFY lt_table INDEX ld_index FROM ls_table.
lo_nd_table->bind_table( new_items = lt_table set_initial_elements = abap_true ).

Deleting a row from custom ztable

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