How to most effectively taverse a table column

I have a table "template" which is used in various "instances". All instances have checkboxes in the second column (for record-delete).
What would be the most effective way of traversing the table and check if at least one checkbox is selected (to enable a "delete" button)?

Hi Nitin,
It can be done by adding to the table the Image control (can be found under Advanced Controls in the Compose panel).
In the URL property (in the Configure panel of the Image control) you can define any expression that will return the image URL. For example:
="http://hosting.site.url/"&@ImageNameField
Regards,
Udi
Edited by: Udi Cohen on Jun 11, 2008 1:39 PM

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How can i indicate that the table columns have different size?

How can i indicate that the table columns have different size?
It is because i have a table that has several columns....but i would like to have the possibility to indicate the size for every column....could somebody help me please?
Thanks,
Mary

Hi,
don't know as much as I should about JTable, but it seems that using yourTable.getDefaultRenderer() could help you: if I clearly understood the javadoc notes, it returns an object inheriting from JLabel, so you should be able to use setHorizontalAlignment(int align) on it... no time to verify this, but I'd be thankfull if you tell me the results !!!
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How to create a multi-line table/column comment

Can someone tell me how to create a multi-line table or column comment?
Apparently, the concatenate operator (||) does not work with the COMMENT statement.
I've searched the Oracle manuals and couldn't find an answer.
COMMENT ON TABLE sometbl IS 'i would like to break up this comment into several lines in order to improve readability'; Effectively, this is what I'd like to do (but it doesn't work):
COMMENT ON TABLE sometbl IS
'i would like to break up ' || CHAR(10) ||
'this comment into several lines ' || CHAR(10) ||
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Why not just
SQL> create table t (a int)
Createtable successfully completed.
SQL> comment on table t is 'i would like to break up
this comment into several lines
in order to improve readability'
Commenton successfully completed.
SQL> select * from user_tab_comments where table_name = 'T'
TABLE_NAME           TABLE_TYPE COMMENTS
T                    TABLE       i would like to break up
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1 row selected.?

How to display images in a table column?

Hi,
In a VC model, I have to display images in a table column for each record found.
How can this be done?
Regards,
Nitin

Hi Nitin,
It can be done by adding to the table the Image control (can be found under Advanced Controls in the Compose panel).
In the URL property (in the Configure panel of the Image control) you can define any expression that will return the image URL. For example:
="http://hosting.site.url/"&@ImageNameField
Regards,
Udi
Edited by: Udi Cohen on Jun 11, 2008 1:39 PM

How to use simple types for table column names ?

Hi,
can any one tell how to to use simple types for table column names?
It is required in internationalizing of webdynpro applications.
Regards,
Rajesh

Hi,
1: define required column names in <SimpleType>
2:use the following code to get those values
3:bind 'text' property of Column headers to context attributes
4:take a context attribute 'Value' as type of <SimpleType>
5:set these values to context attributes
IWDAttributeInfo objAttrInfo=wdContext.getNodeInfo().getAttribute(IPrivate<ViewName>View.IContextElement.VALUE);
ISimpleTypeModifiable simple=objAttrInfo.getModifiableSimpleType();
Map m=simple.getEnumerationTexts();
Collection c=m.values();
Iterator it=c.iterator();
if(it.hasNext())
wdContext.currentContextElement.set<att1>(it.next().toString);
if(it.hasNext())
wdContext.currentContextElement.set<att2>(it.next().toString);
if(it.hasNext())
wdContext.currentContextElement.set<att3>(it.next().toString);
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LakshmiNarayana

How to implement ajax at ADF table column or ADF table column button.

I want to use ajax in table column selection. I have two table. One is master table and second one is detailed table. I have requirement to click master table column and display data in detail table column against the master table column.
let assume i have two tables 1.
<af:form id="f1">
<af:panelSplitter id="ps1" orientation="vertical">
<f:facet name="first">
<af:table value="#{radionBean.generatedData}" var="item" columnSelection="single" rowBandingInterval="0"
id="tableData">
<af:column sortable="false" selected="true" headerText="Ticket No" align="start" id="c1">
<af:outputText value="#{item.ticketno}" id="ot1"/>
</af:column>
<af:column sortable="false" headerText="Requestor" align="start" id="c2">
<af:outputText value="#{item.requestor}" id="ot2"/>
</af:column>
<af:commandButton text="More" id="cb1" action="#{radionBean.myrow}">
<f:ajax execute="@this" render=":f1:detailTableData"/>
<f:setPropertyActionListener target="#{radionBean.currentrow}" value="#{item}"/>
</af:commandButton>
</af:column>
</af:table>
</f:facet>
Second table
<f:facet name="second">
<af:table value="#{radionBean.detailData}" var="itemdet" rowBandingInterval="0"
id="detailTableData">
<af:column sortable="false" headerText="Ticket No" align="start" id="c21">
<af:outputText value="#{itemdet.ticketno}" id="ot21"/>
</af:column>
<af:column sortable="false" headerText="Date" align="start" id="c22">
<af:outputText value="#{itemdet.date}" id="ot22"/>
</af:column>
</af:table>
</f:facet>
</af:panelSplitter>
</af:form>
The above is my two table when i run the program i have this exception
<UIXEditableValue> <_isBeanValidationAvailable> A Bean Validation provider is not present, therefore bean validation is disabled
<FaceletViewHandlingStrategy> <handleRenderException> Error Rendering View[untitled1.jsf]
java.lang.IllegalArgumentException
     at org.apache.myfaces.trinidad.component.UIXComponentBase.findComponent(UIXComponentBase.java:708)
     at com.sun.faces.renderkit.html_basic.AjaxBehaviorRenderer.getResolvedId(AjaxBehaviorRenderer.java:279)
     at com.sun.faces.renderkit.html_basic.AjaxBehaviorRenderer.appendIds(AjaxBehaviorRenderer.java:269)
     at com.sun.faces.renderkit.html_basic.AjaxBehaviorRenderer.buildAjaxCommand(AjaxBehaviorRenderer.java:214)
     at com.sun.faces.renderkit.html_basic.AjaxBehaviorRenderer.getScript(AjaxBehaviorRenderer.java:86)
     at javax.faces.component.behavior.ClientBehaviorBase.getScript(ClientBehaviorBase.java:103)
     at oracle.adf.view.rich.render.RichRenderer._encodeClientBehaviors(RichRenderer.java:3740)
     at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1409)
     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)
     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)
     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1659)
     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)
     at oracle.adf.view.rich.render.RichRenderer.encodeChild(RichRenderer.java:3201)
     at oracle.adf.view.rich.render.RichRenderer.encodeChildInContext(RichRenderer.java:3118)
     at oracle.adfinternal.view.faces.renderkit.rich.table.BaseColumnRenderer.renderDataCell(BaseColumnRenderer.java:1468)
     at oracle.adfinternal.view.faces.renderkit.rich.table.BaseColumnRenderer.encodeAll(BaseColumnRenderer.java:166)
     at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1452)
     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)
     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)
     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1659)
     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeChild(CoreRenderer.java:624)
     at oracle.adf.view.rich.render.RichRenderer.encodeChild(RichRenderer.java:3201)
     at oracle.adfinternal.view.faces.renderkit.rich.TableRenderer.renderDataBlockRows(TableRenderer.java:2803)
     at oracle.adfinternal.view.faces.renderkit.rich.TableRenderer._renderSingleDataBlock(TableRenderer.java:2433)
     at oracle.adfinternal.view.faces.renderkit.rich.TableRenderer._handleDataFetch(TableRenderer.java:1634)
     at oracle.adfinternal.view.faces.renderkit.rich.TableRenderer.encodeAll(TableRenderer.java:560)
     at oracle.adf.view.rich.render.RichRenderer.encodeAll(RichRenderer.java:1452)
     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)
     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)
     at org.apache.myfaces.trinidad.component.UIXCollection.encodeEnd(UIXCollection.java:617)
     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1659)
     at oracle.adfinternal.view.faces.util.rich.InvokeOnComponentUtils$EncodeChildVisitCallback.visit(InvokeOnComponentUtils.java:116)
     at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:531)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:354)
     at oracle.adfinternal.view.faces.renderkit.rich.PanelSplitterRenderer._visitFacetAsStretched(PanelSplitterRenderer.java:393)
     at oracle.adfinternal.view.faces.renderkit.rich.PanelSplitterRenderer._visitFacet(PanelSplitterRenderer.java:371)
     at oracle.adfinternal.view.faces.renderkit.rich.PanelSplitterRenderer.visitChildrenForEncodingImpl(PanelSplitterRenderer.java:338)
     at oracle.adf.view.rich.render.RichRenderer.visitChildrenForEncoding(RichRenderer.java:2393)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:410)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:695)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:558)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:354)
     at oracle.adfinternal.view.faces.renderkit.rich.DecorativeBoxRenderer.visitChildrenForEncodingImpl(DecorativeBoxRenderer.java:214)
     at oracle.adf.view.rich.render.RichRenderer.visitChildrenForEncoding(RichRenderer.java:2393)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:410)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:695)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:558)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:354)
     at oracle.adfinternal.view.faces.renderkit.rich.PanelStretchLayoutRenderer._visitFacetAsStretched(PanelStretchLayoutRenderer.java:856)
     at oracle.adfinternal.view.faces.renderkit.rich.PanelStretchLayoutRenderer._visitFacet(PanelStretchLayoutRenderer.java:834)
     at oracle.adfinternal.view.faces.renderkit.rich.PanelStretchLayoutRenderer.visitChildrenForEncodingImpl(PanelStretchLayoutRenderer.java:793)
     at oracle.adf.view.rich.render.RichRenderer.visitChildrenForEncoding(RichRenderer.java:2404)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:410)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:695)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:558)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:354)
     at org.apache.myfaces.trinidad.render.CoreRenderer.visitChildrenForEncoding(CoreRenderer.java:228)
     at oracle.adf.view.rich.render.RichRenderer.visitChildrenForEncodingImpl(RichRenderer.java:2421)
     at oracle.adf.view.rich.render.RichRenderer.visitChildrenForEncoding(RichRenderer.java:2404)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:410)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:695)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:558)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:354)
     at org.apache.myfaces.trinidad.render.CoreRenderer.visitChildrenForEncoding(CoreRenderer.java:228)
     at oracle.adf.view.rich.render.RichRenderer.visitChildrenForEncodingImpl(RichRenderer.java:2421)
     at oracle.adf.view.rich.render.RichRenderer.visitChildrenForEncoding(RichRenderer.java:2404)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:410)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitChildren(UIXComponent.java:695)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:558)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:354)
     at org.apache.myfaces.trinidad.component.UIXDocument.visitTree(UIXDocument.java:82)
     at javax.faces.component.UIComponent.visitTree(UIComponent.java:1496)
     at org.apache.myfaces.trinidad.component.UIXComponent.visitTree(UIXComponent.java:487)
     at oracle.adfinternal.view.faces.util.rich.InvokeOnComponentUtils.renderChild(InvokeOnComponentUtils.java:42)
     at oracle.adfinternal.view.faces.streaming.StreamingDataManager._pprComponent(StreamingDataManager.java:756)
     at oracle.adfinternal.view.faces.streaming.StreamingDataManager.execute(StreamingDataManager.java:525)
     at oracle.adfinternal.view.faces.renderkit.rich.DocumentRenderer._encodeStreamingResponse(DocumentRenderer.java:3713)
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     at org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:511)
     at org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:923)
     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1659)
     at oracle.adfinternal.view.faces.context.PartialViewContextImpl._processRender(PartialViewContextImpl.java:321)
     at oracle.adfinternal.view.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:152)
     at javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:974)
     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1652)
     at oracle.adfinternal.view.faces.component.AdfViewRoot.encodeAll(AdfViewRoot.java:91)
     at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:399)
     at org.apache.myfaces.trinidadinternal.application.ViewDeclarationLanguageFactoryImpl$ChangeApplyingVDLWrapper.renderView(ViewDeclarationLanguageFactoryImpl.java:350)
     at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
     at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:273)
     at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:165)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._renderResponse(LifecycleImpl.java:1027)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:334)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:232)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:313)
     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:173)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:122)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)
     at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:293)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:199)
     at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)
     at java.security.AccessController.doPrivileged(Native Method)
     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
     at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)
     at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94)
     at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161)
     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:136)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Please reply this.......
THANK YOU IN AN ADVANCE
Regards
Muhammad Khurram
Edited by: 912134 on Feb 3, 2012 4:28 AM

I don't think you need the f:ajax tag - you should be able to do the synchronization between the tables with the built-in partial page refresh functionality.
Just define the partialTrigger property of the second table to point to the firsttable.
http://docs.oracle.com/cd/E16162_01/web.1112/e16181/af_ppr.htm#BGBEGIDF

Object Modelling Question: How do I create multiple nested table columns in one table

Hi there,
I have a XML doc which is as follows:
<PERSON>
<ADDRESSLIST>
<ADDRESS>111, Hamilton Ave </ADDRESS>
<ADDRESS>222, Cambell Ave </ADDRESS>
</ADDRESSLIST>
<PHONELIST>
<PHONENO>4085551212 </PHONENO>
<PHONENO>6505551212</PHONENO>
</PHONELIST>
</PERSON>
I need a table that looks as follows:
Create table person
(addresslist address_table,
phonelist phone_table
I would like to create a table called person with columns addresslist and phonelist. Each defined as object type table of address and table of phones.
Can anybody please tell me how can I do this.
I have seen that there can only be one nested table per table. If so, how do we do this.
Thanks so much
Pramod

pelle.k wrote:
peets wrote:Hehe because it's less typing!
Good one!
Also, it's by far the more dynamic method.
If you want to get pedantic, it's also far less efficient in terms of execution time: each iteration of the loop forks a new process, whereas using a single mkdir command forks only once. The "best" way is the curly-braces method demonstrated above by chimeric.

How to put Hyperlink in the table column.

HI,
I want to put hyperlink(with underline) for the columns(column headers) of the table .I have created IWDAction for the column
I want to put a underline for this hyperlink.
I tried with IWDLinktoAction.But I am not getting the hyperlink with underline.
Please suggest how to get the hyperlink with underline.

Hi,
U cant place a link to acction in headers.
If you really need it you have to do it with some compromises by making use of either toolbar or a transparent container above your table.
Regards
Ayyapparaj

How to fix the position of table columns.

Hay all,
Can anybody tell me that how to fix the position of columns in a table.By default the columns can be moved to any position in the table.
Regards,
Sharad Agarwal

table.getTableHeader().setReorderingAllowed(false);this will do...
Regards,
Byju

How to Fetch Data into internal table column wise?

The internal table contains huge set of data. Normally we fetch the data row wise using insert and select statements in work area.
But, the requirement is on fetching the data column wise for each field from the database.
So,can anyone help me on this issue for fetching the data column wise?

Welcome to SDN.
What you want to do(if I understand correctly) is not possible with the statements available to us. You could do it, but I think it would be a lot of code and I don't think that its worth it. Why exactly do you want to do this?
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Rich Heilman

How to Export/Import specific/selected table columns (can database view be

All,
I like to export and import some selected columns and rows of a table from one oracle database to another database.
For example, I like to export the following SQL's result data to another oracle database.
select ename, sal from emp where dno = 100;
Can I create a database view based on the above SQL and export the view with data (I don't think data will be exported along with database view?)
I know, I can do this either with SQL*Loader or by creating DBLink between databases and using insert-select statement.
Please let me know if this is possible in exp/imp.
Appreciate your help.
Thanks
Kumar

Hello,
You can Query and table option to export and import and i recommend you to create parameter file to use query option
parfile.par
file=myexport.dmp
tables=table1,table2,table3
query="where dno=2"
..Conventional export/import, you can also consider using datapump if you are using 10g.
exp username/password parfile=parfile.par log=myexport.log
imp username/password file=myexport.dmp tables=table1,table2,table3 log=myimport.logRegards

How can i put image in table column

Hii
I have to make one application in which i m going through JTable but look shoud not be like that ....border of row and column should be invisiable and in the last column Image should be displayed....... i m unable to find this..
can anybody help me ...
Vaibhav Gupta

Both of these question have been answered recently, like in the last 30 minutes. Check out other threads for you answers.
Cheers
DB

How to insert & in a table column

Dear all,
How can I insert & in a table column
create table test(det varchar2(2));
In this table I want to insert & symbol.
How can I insert & symbol inthis table.
Thanks

You should use:
SQL> set define offto switch off the "&" symbol as the defined subsitution variable character.
http://download.oracle.com/docs/cd/B19306_01/server.102/b14357/ch8.htm#sthref1566
then use:
SQL> set define &to turn it back on again.

The most effective way from varchar2 to CLOB?

this is my table's TAB structure on Oracle 10g r2:
TAB_ID (PK),
TAB2_ID (FK constraint to TAB2(TAB2_ID), index created),
TEXT varchar2(4000)
What is the most effective way to convert varchar2(4000) column to CLOB column?
1. create new table TAB_NEW with column TEXT as CLOB,
then insert /*+ APPEND */ into TAB_NEW SELECT * FROM TAB,
then rename table TAB to TAB_OLD,
then drop constraint and indexes
then rename TAB_new to TAB
then add constraints primary key and foreign key,
then add index on TAB2_ID
then drop table TAB_OLD
OR
2. rename column TEXT(varchar2) to TEXT_OLD
then add column TEXT(type CLOB)
then update(how the most effective?) TAB set TEXT=TEXT_OLD
drop column TEXT_OLD.

1 will work, as you can assign a VARCHAR2 to a CLOB and Oracle will convert it.
2 is redundant.
Sybrand Bakker
Senior Oracle DBA

Enable Inputfield in the table column even though the column is empty

Dear Experts
How to enable or disable a table column(it is an inputfield) dynamically.
I done this and strugling to proceed from this point
DATA lr_container TYPE REF TO cl_wd_uielement_container.
DATA lr_table     TYPE REF TO cl_wd_table.
DATA lr_view      TYPE REF TO if_wd_view.
DATA lr_child     TYPE REF TO cl_wd_uielement.
data : lr_col TYPE REF TO CL_WD_TABLE_COLUMN.
data : lr_inp TYPE REF TO cl_wd_input_field .
lr_container ?= view->get_element( 'ROOTUIELEMENTCONTAINER' ).
lt_children = lr_container->get_children( ).
CALL METHOD lr_container->get_child
    EXPORTING
      id        = 'ITEMS_TABLE'
      index     = 1
    RECEIVING
      the_child = lr_child.
lr_table ?= lr_child.
CALL METHOD lr_table->get_column
   EXPORTING
     id         = 'ZVPN_IT_INP'
     index      = '6'
   receiving
     the_column = lr_col.
Upto this the code is working fine as per the requirement .Now the thing is in that in column we r having an input field which should be enabled dynamically
Regards
Arun

Hi Arun.,
For enabling and disabiling any field on the view, there is only procedure.
1. Make an attribute of type 'ABAP_BOOL' in the context.
2. Bind the enable property of the UI element to this attribute.
3. Enable or Disable the UI element in the code.
So for your question you can follow :
1. Make an attribute 'ENABLE' in the context node bound to the table. Type ABAP BOOL.
2. Bind 'ENABLE' property of the desired input field with this attribute.
3. In WDDOMODIFYVIEW check your condition and based on the condition use set_attribute method of if_wd_context_node to change the value to 00 - None or 01 - Enabled.
I hope your question is answered.

How to most effectively taverse a table column

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