Number of Rows, displaying a table with only one row

Hello,
I am doing my first VC tests on the discovery System.
I have an input form where I put in the username, then choose a user from a table and with the user ID I want to show the user details in another table.
Now since I am only pickling one user, the new table will only have one row. In VC I cannot set the no. of rows to 1 though, since I cannot edit the no. of rows field. I also cannot disable the scroll buttons.
Why is that?
Is there another way to display user details? I tried to display it in read-only form, but it is pretty ugly.
Another question regarding designing in VC:
Are there any design elements in VC for example to group form fields that belong together? Let's say I have street name, number, postal code and so on, could I use a design element to group them under the label "Address" ?

Peter,
For some reason the No. of Rows and Scroll Buttons options are only available if your compiler is set to Web DynPro. Whenever you compile to Flash they're disabled.
Regards
Hennie

Similar Messages

SQL Server 2012 Undetected Deadlock in a table with only one row

We have migrated our SQL 2000 Enterprise Database to SQL 2012 Enterprise few days ago.
This is our main database, so most of the applications access it.
The day after the migration, when users started to run tasks, the database access started to experiment a total failure.
That is, all processes in the SQL 2k12 database were in lock with each other. This is a commom case of deadlock, but the Database Engine was unable to detect it.
After some research, we found that the applications were trying to access a very simple table with only one row. This table has a number that is restarted every day and is used to number all the transactions made against the system. So, client
applications start a new transaction, get the current number, increment it by one and commit the transaction.
The only solution we found was to kill all user processes in SQL Server every time this situation occurs (no more than 5 minutes when all clients are accessing the database).
No client application was changed in this migration and this process was working very well for the last 10 years.
The problem is that SQL 2k12 is unable to handle this situation compared to SQL 2k.
It seems to occurs with other tables too, but as this is an "entry table" the problem occurs with it first.
I have searched internet and some suggest some workarounds like using table hints to completely lock the table at the begining of the transaction, but it can't be used to other tables.
Does anyone have heard this to be a problem with SQL 2k12? Is there any fixes to make SQL 2k12 as good as SQL 2k?

First off re: "Unfortunatelly, this can't be used in production environment as exclusive table lock would serialize the accesses to tables and there will be other tables that will suffer with this problem."
This is incorrect.
Using a table to generate sequence numbers like this is a bad idea exactly because the access must be serialized. Since you can't switch to a SEQUENCE object, which is the correct solution, the _entire goal_ of this exercise to find a way to properly
serialize access to this table. Using exclusive locking will not be necessary for all the tables; just for the single-row table used for generating sequence values with a cursor.
I converted the sample program to VB.NET:
Public Class Form1
Private mbCancel As Boolean = False
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim soConn As ADODB.Connection
Dim soRst As ADODB.Recordset
Dim sdData As Date
Dim slValue As Long
Dim slDelay As Long
'create database vbtest
'go
' CREATE TABLE [dbo].[ControlNumTest](
' [UltData] [datetime] NOT NULL,
' [UltNum] [int] NOT NULL,
' CONSTRAINT [PK_CorreioNumTeste] PRIMARY KEY CLUSTERED
' [UltData] Asc
' )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, FILLFACTOR = 80) ON [PRIMARY]
' ) ON [PRIMARY]
mbCancel = False
Do
' Configure the Connection object
soConn = New ADODB.Connection
With soConn
.ConnectionString = "Provider=SQLNCLI11;Initial Catalog=vbtest;Data Source=localhost;trusted_connection=yes"
.IsolationLevel = ADODB.IsolationLevelEnum.adXactCursorStability
.Mode = ADODB.ConnectModeEnum.adModeReadWrite
.CursorLocation = ADODB.CursorLocationEnum.adUseServer
.Open()
End With
' Start a new transaction
Call soConn.BeginTrans()
' Configure the RecordSet object
soRst = New ADODB.Recordset
With soRst
.ActiveConnection = soConn
.CursorLocation = ADODB.CursorLocationEnum.adUseServer
.CursorType = ADODB.CursorTypeEnum.adOpenForwardOnly
.LockType = ADODB.LockTypeEnum.adLockPessimistic
.Open("SELECT * FROM dbo.ControlNumTest")
End With
With soRst
sdData = .Fields!UltData.Value ' Read the last Date (LOCK INFO 1: See comments bello
slValue = .Fields!UltNum.Value ' Read the last Number
If sdData <> Date.Now.Date Then ' Date has changed?
sdData = Date.Now.Date
slValue = 1 ' Restart number
End If
.Fields!UltData.Value = sdData ' Update data
.Fields!UltNum.Value = slValue + 1 ' Next number
End With
Call soRst.Update()
Call soRst.Close()
' Ends the transaction
Call soConn.CommitTrans()
Call soConn.Close()
soRst = Nothing
soConn = Nothing
txtUltNum.Text = slValue + 1 ' Display the last number
Application.DoEvents()
slDelay = Int(((Rnd * 250) + 100) / 100) * 100
System.Threading.Thread.Sleep(slDelay)
Loop While mbCancel = False
If mbCancel = True Then
Call MsgBox("The test was canceled")
End If
Exit Sub
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
mbCancel = True
End Sub
End Class
And created the table
CREATE TABLE [dbo].[ControlNumTest](
[UltData] [datetime] NOT NULL,
[UltNum] [int] NOT NULL,
CONSTRAINT [PK_CorreioNumTeste] PRIMARY KEY CLUSTERED
[UltData] Asc
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = on, FILLFACTOR = 80) ON [PRIMARY]
) ON [PRIMARY]
go insert into ControlNumTest values (cast(getdate()as date),1)
Then ran 3 copies of the program and generated the deadlock:
<deadlock>
<victim-list>
<victimProcess id="processf27b1498" />
</victim-list>
<process-list>
<process id="processf27b1498" taskpriority="0" logused="0" waitresource="KEY: 35:72057594039042048 (a01df6b954ad)" waittime="1970" ownerId="3181" transactionname="implicit_transaction" lasttranstarted="2014-02-14T15:49:31.263" XDES="0xf04da3a8" lockMode="X" schedulerid="4" kpid="9700" status="suspended" spid="51" sbid="0" ecid="0" priority="0" trancount="2" lastbatchstarted="2014-02-14T15:49:31.267" lastbatchcompleted="2014-02-14T15:49:31.267" lastattention="1900-01-01T00:00:00.267" clientapp="vbt" hostname="DBROWNE2" hostpid="21152" loginname="NORTHAMERICA\dbrowne" isolationlevel="read committed (2)" xactid="3181" currentdb="35" lockTimeout="4294967295" clientoption1="671088672" clientoption2="128058">
<executionStack>
<frame procname="adhoc" line="1" stmtstart="80" sqlhandle="0x020000008376181f3ad0ea908fe9d8593f2e3ced9882f5c90000000000000000000000000000000000000000">
UPDATE [dbo].[ControlNumTest] SET [UltData]=@Param000004,[UltNum]=@Param000005 </frame>
<frame procname="unknown" line="1" sqlhandle="0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000">
unknown </frame>
</executionStack>
<inputbuf>
(@Param000004 datetime,@Param000005 int)UPDATE [dbo].[ControlNumTest] SET [UltData]=@Param000004,[UltNum]=@Param000005 </inputbuf>
</process>
<process id="processf6ac9498" taskpriority="0" logused="10000" waitresource="KEY: 35:72057594039042048 (a01df6b954ad)" waittime="1971" schedulerid="5" kpid="30516" status="suspended" spid="55" sbid="0" ecid="0" priority="0" trancount="1" lastbatchstarted="2014-02-14T15:49:31.267" lastbatchcompleted="2014-02-14T15:49:31.267" lastattention="1900-01-01T00:00:00.267" clientapp="vbt" hostname="DBROWNE2" hostpid="27852" loginname="NORTHAMERICA\dbrowne" isolationlevel="read committed (2)" xactid="3182" currentdb="35" lockTimeout="4294967295" clientoption1="671156256" clientoption2="128058">
<executionStack>
<frame procname="adhoc" line="1" sqlhandle="0x020000003c6309232ab0edbe0a7790a816a09c4c5ac6f43c0000000000000000000000000000000000000000">
FETCH API_CURSOR0000000000000001 </frame>
<frame procname="unknown" line="1" sqlhandle="0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000">
unknown </frame>
</executionStack>
<inputbuf>
FETCH API_CURSOR0000000000000001 </inputbuf>
</process>
</process-list>
<resource-list>
<keylock hobtid="72057594039042048" dbid="35" objectname="vbtest.dbo.ControlNumTest" indexname="PK_CorreioNumTeste" id="lockff6e6c80" mode="U" associatedObjectId="72057594039042048">
<owner-list>
<owner id="processf6ac9498" mode="S" />
<owner id="processf6ac9498" mode="U" requestType="wait" />
</owner-list>
<waiter-list>
<waiter id="processf27b1498" mode="X" requestType="convert" />
</waiter-list>
</keylock>
<keylock hobtid="72057594039042048" dbid="35" objectname="vbtest.dbo.ControlNumTest" indexname="PK_CorreioNumTeste" id="lockff6e6c80" mode="U" associatedObjectId="72057594039042048">
<owner-list>
<owner id="processf27b1498" mode="U" />
<owner id="processf27b1498" mode="U" />
<owner id="processf27b1498" mode="X" requestType="convert" />
</owner-list>
<waiter-list>
<waiter id="processf6ac9498" mode="U" requestType="wait" />
</waiter-list>
</keylock>
</resource-list>
</deadlock>
It's the S lock that comes from the cursor read that's the villian here. U locks are compatible with S locks, so one session gets a U lock and another gets an S lock. But then the session with an S needs a U, and the session with a U needs an
X. Deadlock.
I'm not sure what kind of locks were taken by this cursor code on SQL 2000, but on SQL 2012, this code is absolutely broken and should deadlock.
The right way to fix this code is to add (UPDLOCK,SERIALIZABLE) to the cursor
.Open("SELECT * FROM dbo.ControlNumTest with (updlock,serializable)")
So each session reads the table with a restrictive lock, and you don't mix S, U and X locks in this transaction. This resolves the deadlock, but requires a code change.
I tried several things that didn't require a code, which did not resolve the deadlock;
1) setting ALLOW_ROW_LOCKS=OFF ALLOW_PAGE_LOCKS=OFF
2) SERIALIZABLE isolation level
3) Switching OleDB providers from SQLOLEDB to SQLNCLI11
Then I replaced the table with a view containing a lock hint:
CREATE TABLE [dbo].[ControlNumTest_t](
[UltData] [datetime] NOT NULL,
[UltNum] [int] NOT NULL,
CONSTRAINT [PK_CorreioNumTeste] PRIMARY KEY CLUSTERED
[UltData] Asc
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = on, FILLFACTOR = 80) ON [PRIMARY]
) ON [PRIMARY]
go
create view ControlNumTest as
select * from ControlNumTest_t with (tablockx)
Which, at least in my limited testing, resovlved the deadlock without any client code change.
David
David http://blogs.msdn.com/b/dbrowne/

Declare the internal table with only one 10 character field and use

Hi,
I want to declare the internal table with only one 10 character field and use.
Jaya

Hi,
Go ahead. U can declare IT with only one field
Example:
data: begin of zcustlist occurs 1000,
custmer(10) type c,
end of zcustlist.
Narendra Reddy.
Edited by: Narendra Reddy C on Aug 8, 2008 11:39 AM

Select event not triggered in table with only one row

Hi all,
I am building a BI VC application where query data is displayed in a table. When the user clicks on a table row another query is then triggered and output in a second table. The output from table 1 is linked to the input of query2/table2 with a select event.
The problem that I am facing is that if there is only one row in table 1, the select event is never triggered. If, however there are two or more rows in the table the select event is triggered and query 2 is executed. I have searched the forums but all I could find on select event problems was how to avoid the initial select event.
Has anyone else experienced this issue and what is the workaround or is this a bug in Visual Composer? We are on VC 7.0 SP19.
Cheers,
Astein Meland

Thanks Chittya,
Yes we have considered this option as well. But as we have more than one table linked together we would like to avoid having to manually click several buttons.
In the end I found Note 1364334 describing bugfixes released in VC 7.0 SP20:
"Normally, when a Visual Composer table is populated from a data service, the first row is selected by default. However, we have found that if only one data row is returned from the data service, this row is not selected by default and cannot be manually selected by clicking on it either."
So I think we will just have to upgrade our Portal to the latest support packs to solve this problem.
Thanks,
Astein

Problem with creating an dynamic internal table with only one field.

Hi,
i create an internal table like this:
FIELD-SYMBOLS: <GT_ITAB>      TYPE TABLE,
               <GS_ITAB>,
               <FS>.
DATA: GT_DATA TYPE REF TO DATA.
DATA: GS_DATA TYPE REF TO DATA.
DATA: TABNAME   LIKE DD03L-TABNAME.
DATA: FIELDNAME LIKE DD03L-FIELDNAME.
DATA: TBFDNAM   TYPE TBFDNAM VALUE 'LFA1-NAME1'.
SPLIT TBFDNAM AT '-' INTO TABNAME FIELDNAME.
CREATE DATA GT_DATA TYPE TABLE OF (TABNAME).
ASSIGN GT_DATA->* TO <GT_ITAB>.
CREATE DATA GS_DATA LIKE LINE OF <GT_ITAB>.
ASSIGN GS_DATA->* TO <GS_ITAB>.
SELECT * FROM (TABNAME) INTO CORRESPONDING FIELDS OF TABLE <GT_ITAB>.
BREAK-POINT.
it works OK.
Now i want to create an internal table not like LFA1 but with LFA1-NAME1 Field TBFDNAM.
It's not only LFA1-NAME1 it shell be the value of TBFDNAM.
When i change
CREATE DATA GT_DATA TYPE TABLE OF (TABNAME).
to
CREATE DATA GT_DATA TYPE TABLE OF ( TBFDNAM).
i get an shortdump.
Any idea?
Regards, Dieter

Hi Dieter,
Your approach is ok, but it will create dynamic table without a structure of NAME1. Only the line type will be suitable (but field name will not exists -> hence the error in the select statement).
In this case you need to create a dynamic table which structure consists of one field named NAME1.
This code is the appropriate one:
" your definitions
DATA: tabname LIKE dd03l-tabname.
DATA: fieldname LIKE dd03l-fieldname.
DATA: tbfdnam TYPE tbfdnam VALUE 'LFA1-NAME1'.
FIELD-SYMBOLS <gt_itab> TYPE table.
"new ones
DATA: it_fcat TYPE lvc_t_fcat WITH HEADER LINE.
DATA: gt_itab TYPE REF TO data.
" get table and fieldname
SPLIT tbfdnam AT '-' INTO tabname fieldname.
" create dynamic table with structure NAME1 (only one field)
it_fcat-fieldname = fieldname.
it_fcat-tabname = tabname.
APPEND it_fcat.
CALL METHOD cl_alv_table_create=>create_dynamic_table
EXPORTING
    it_fieldcatalog           = it_fcat[]
IMPORTING
    ep_table                  = gt_itab
EXCEPTIONS
    generate_subpool_dir_full = 1
    OTHERS                    = 2.
CHECK sy-subrc = 0.
" dereference table
ASSIGN gt_itab->* TO <gt_itab>.
" insert data only to NAME1 field
SELECT * FROM (tabname) INTO CORRESPONDING FIELDS OF TABLE <gt_itab>.
I checked, this works fine:)
Regards
Marcin

Negative number cannot be displayed in table if the column is too narrow

Hi, All
When a number is formatted as a certain formatting(not locale formmatting),Negative number cannot be displayed in table if the column is narrower than the negative number, just minus is displayed.
Can you help me? Thanks.
Version: EHP1 for netweaver 7.0 SP3
Best regards,
Jiande Ding

Hi,
I think this has nothing to do with positive and negative numbers, By default the alignment of the text is Left, if you dont want to see '-' sign initially then you can change the alignment of the text to center or right in the display tab of properties for that column.
As you as saying that at runtime the numbers are visible if manually adjusted. to icrease the width of that column permanently goto Layout tab of the story board and increase the size of the table and then increase the width of the column.
the Fit Contents in the Layout should be set to "Actual Size".
Regards,
Rk.

Different Effective Date in One BOM with only ONE Change Number

Hi gurus
here is my complete question?
Is it possible to realize this function that Different Effective Date in One BOM for different BOM items with only ONE Change Number?
Thanks for your information/help in advance.

Dear Zhao,
Using One change number it's not possible to define a different valid from date for the BOM changes of a single material BOM.
In case if the same change number is used for making different material's BOM component,then a different valid from date for
each BOM can be defined,but at any given point not for each component/item level of the same BOM.
Check and revert back.
Regards
Mangalraj.S

I need to download photoshop but i lost the serial number. Can i download it with only the cd?

I need to download photoshop but i lost the serial number. Can i download it with only the cd?

Ana
If you need to find your serial number for a non-creative cloud product as mentioned above, start by logging in to your adobe account. (Go to Adobe .com and click “Sign In” in the upper-right menu bar. Enter the email you use as your Adobe ID and your password.) All of your registered products and their serial numbers are listed in the Plans & Products section on the Manage Accounts page that appears.
For more information on locating or registering serial numbers, please see this link: Find a serial number
Pattie

Pages won't allow me to create a table with just one row.

I'm trying to create a one row, two colum table in Pages. I have no problem with the columns. But I cannot create the table with just one row. Two rows apppears to be the minimum. Any ideas??

In Pages 5.2, click the equal sign at bottom-left of table and reduce the row count to one.

Nodes with Only One Lower-Level Node = Hide

Hi everyone
Have anyone present this situation:
Iu2019ve a quey to report inventory aging. It has two hierarchies to show data. In Rows I have Major Markets and in Columns a date hierarchy to show aging Ex: from 0 to 8 months, 9+ and 13+. Of course here I have also value and volume.
Query reports all values for all major markets fine. When I filter one major market, letu2019s say France also brings detailed figures but when I add any drill down in rows all values goes to cero (0).
Te estrange is that if you swap drill down order with major markets or drill down by columns with the same characteristic figures come out again as usual.
I know this sounds like a SAP note but I have not been able to find it either.
Thanks a lot for your help, and of course points will be assignedu2026..
Ps. Important, this happen when option u201CNodes with Only One Lower-Level Node = Hideu201D (this is selected on purpose because there are some repeated nodes in major market hierarchy Ex. France u2013 France and if there is just one value under first node then means that only display of last one is necessary to avoid repeated values).

Solution we found is to remove flag "Do not display leaves for inner-nodes in the query", directly on the hierarchy.
Thanks

How to connect many devices with only one FW800 port in iMac?

Hi,
I am upgrading to a new Intel iMac from a 2004 vintage Dual2.0GHz PowerMac. I currently have 8x d2 Quadra drives chained by FW800, and 2x Iomega drives connected vis FW400 hub which also connects HD cams.
My questions is that with only one FW800 port in iMac, I think my devices connectivity is the following?
(1) Get a FW 800 hub (I can only find 2 port ones at the Apple store and BestBuy)
(2) Connect the d2 Quadras to one port of the FW800 hub
(3) Get a FW 800 to FW 400 cable
(4) Connect my 6 port FW400 hub to the 2nd port of the FW800 hub
Thanks for reviewing this solution, and I would also appreciate other suggestions or hear about your experiences if you have a similar set-up.
Will

In addition to your listed considerations, you should consider the following.
Many storage needs do not required FireWire 800 speed. For example, USB 2.0 works fine for your Time Machine backup drive. If you are just storing user data such as your iPhoto or iTunes media files, USB 2.0 is more than fast enough. So, as much as possible, if any of those external drives have USB 2.0 connections and the data storage does not need FireWire 800 speed, offload as much as possible to USB 2.0. I used to be a +FireWire snob+, but since getting an Intel iMac, I find that USB 2.0 works quite well for most data storage purposes.
There are new hard drives that are power efficient and as large as 2TB. Consolidate your data storage needs onto a smaller number of very large drives, partitioned as needed. This will make your setup more reliable (smaller number drives), and save reduce power consumption. If any of your current externals are SATA, you can probably replace the existing drive with an extra large one.
So, I think you setup should be, extra large FireWire 800 drive connected to the FireWire 800 port directly. Using a 9-pin to 6-pin cable, connect the FireWire 400 hub. Connect any non-storage FireWire 400 devices there. Do some data transfer testing to make sure having the 400 hub there on the chain does not cause the 800 connection to slow down.
Connect other drives as needed using USB 2.0, existing or new. Retire the smaller of your external drives.

Why won't my iMessage work with only one contact in my phone all my other iMessages send and they just got an iphone but all their iMessages are sending also. I've tried restarting my phone, deleting messages, contact, restarting network

Why won't my iMessage work with only one contact in my phone all my other iMessages send and they just got an iphone but all their iMessages are sending also. I've tried restarting my phone, deleting messages, contact, restarting network

Hello Jesslb23,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
iOS: Troubleshooting Messages
http://support.apple.com/kb/ts2755
To resolve issues with sending and receiving iMessages, follow these steps first
Check iMessage system status for current service issues.
Go to Settings > Messages > Send & Receive and make sure that you have registered iMessage with your phone number or Apple ID and that you have selected iMessage for use. Learn more about troubleshooting iMessage registration if the phone number or Apple ID isn't available for use.
Open Safari and navigate to www.apple.com to verify data connectivity. Learn more about troubleshootingcellular data or a Wi-Fi connection if a data connection isn't available.
iMessage over cellular data might not be available while on a call. Only 3G and faster GSM networks support simultaneous data and voice calls. Learn more about which network your phone supports. Go to Settings > Wi-Fi and turn Wi-Fi on to use iMessage while on a call if your network doesn't support simultaneous data and voice calls.
Restart your device.
Tap Settings > General > Reset > Reset Network Settings on your iPhone.
If you are still unable to send or receive an iMessage, follow these steps
Make sure that the contact trying to message you isn't blocked in Settings > Messages > Blocked.
Verify that the contact you are attempting to send a message to is registered with iMessage.
If the issue occurs with a specific contact or contacts, back up or forward important messages and delete your current messaging threads with the contact. Create a new message to the contact and try again.
If the issue occurs with a specific contact or contacts, delete and re-create the contact in the Contacts application. Create a new message to the newly created contact and try again.
Back up and restore your device as new.
Best of luck,
Mario

Hide unhide rolemenu in web with only one link

Hi together
is it possible to hide unhide the role menu in web with only one link by using command urls?
Regards,
M. Erbil

Hi Memo,
use something like this:

<object>
         <param name="OWNER" value="SAP_BW"/>
         <param name="CMD" value="SET_PROPERTIES"/>
         <param name="TEMPLATE_ID" value="ROLEMENU"/>
         TEMPLATE PROPERTIES
</object>
<HTML>
<HEAD>
<TITLE>Rolemenu</TITLE>
      <link href="/sap/bw/Mime/BEx/StyleSheets/BWReports.css" type="text/css" rel="stylesheet"/>
     <script type="text/javascript" >
/* This function switches the attribute HIDDEN (alternate Tablestyles) for item mytable
1. Get actual value for attribute HIDDEN
2. Send Commando with new attribute to BW Server */
        function switch_visibility(mytable) {
         var prop = SAPBWGetItemProp(mytable);
         var visibility='X';
         if (prop != null){
                  for(i=1;i<prop.length;i++){
                            if (prop<i>[0] =="HIDDEN") visibility = prop<i>[1];
            if (visibility =='X') {
                           visibility=' '
            else
                        visibility = 'X';
            SAPBWOpenURL(SAP_BW_URL_Get() +'&item=' + mytable +'&HIDDEN=' + visibility);
     -->
     </script>
</HEAD>
<BODY>
<P> <object>
         <param name="OWNER" value="SAP_BW"/>
         <param name="CMD" value="GET_ITEM"/>
         <param name="NAME" value="ROLEMENU_1"/>
         <param name="ITEM_CLASS" value="CL_RSR_WWW_ITEM_MENU"/>
         <param name="WIDTH" value="335"/>
         <param name="GENERATE_CAPTION" value=""/>
         <param name="TARGET" value=""/>
         <param name="HEIGHT" value="285"/>
         <param name="IFRAME" value="X"/>
         <param name="IFRAME_STYLE" value="X"/>
         <param name="HIERARCHY_COLOR" value=""/>
         <param name="DIFF_ICONS" value=""/>
         ITEM:            ROLEMENU_1
</object> </P><!—Include a button in HTML with id mybutton1. By clicking on link the function switch_visibility for item ROLEMENU_1 will be executed à
<table class="SAPBEXBtnStdBorder" cellspacing="0" cellpadding="0" border="0"><tr><td>
<table>
<tr>
   <td class="SAPBEXBtnStd"   id="mybutton1" > <A href="javascript:switch_visibility('ROLEMENU_1');" >show / hide menu</A>
   </td>
</tr>
</table>
</td>
</tr></TABLE><!— call function set_button, to set the correct style class for button mybutton1 à
<script type="text/javascript" >
</SCRIPT>
</BODY>
</HTML>
Regards,
Adem

SQL query to retrieve families with only one generation from a family db

Hi,
I need to write an SQL query that would select families with only one generation ((which means a person - or a married couple - with kids) or (a person - or a married couple - with parents but no kids)) from a database containing families. The simplified db structure is:
person:
id - int, primary key
siblings:
id
parent_id
kid_id
marriage
id:
husband_id
wife_id
Could anyone please help me? I dont really have any idea how to accomplish that...

Hi,
Welcome to the forum!
Assuming that siblings (despite its name) contains only parent-child relationships, and that the parent_id could be either the mother or the father:
WITH     got_tree     AS
     SELECT     CONNECT_BY_ROOT s.parent_id     AS root_id
     ,     LEVEL                     AS lvl
     FROM          siblings     s
     LEFT OUTER JOIN     marriage     m     ON     s.parent_id     IN ( m.husband_id
                                                        , m.wife_id
     START WITH     parent_id     NOT IN     ( SELECT kid_id
                                           FROM        siblings
     CONNECT BY     s.parent_id     IN ( PRIOR m.husband_id
                            , PRIOR m.wife_id
                            , PRIOR kid_id
SELECT       root_id
FROM       got_tree
GROUP BY root_id
HAVING       MAX (lvl)     <= 2
;This will get a list of parents who may or may not have children, but who do not have either parents or grandchildren.
To get their spouses and children (if any) you will have to join this result set to all the other tables. At that point, you can eliminate poeple who do not have ancestors themselves, but are married to people who have more than one generation of ancestors.
The details of how to do that depend on the details of your tables. If you'd like help, then post a little sample data (CREATE TABLE and INSERT statements for all tables) and the results you want from that data.
Edited by: Frank Kulash on Oct 14, 2009 4:05 PM
I'd need sample data in order to test this, of course.

How to evolve a graph with only one loop

1. how to continue to add new nodes to a graph with only one loop
would like to use graph traversal like my previous post to traversal a binary tree, but this time, it can
loop forever, i mean it traverse all nodes in whole graph in the meanwhile it add new nodes too
assume maximum number of joint is 2 or 3
computing nightmare

I just realised that you weren't talking about cyclic graphs (in the case of 1 cycle) here, but meant a single pass traverse and mutate.
What you don't specify is how the new nodes are being supplied. If they are supplied up front, then the loop will of course terminate once all the inputs are addressed, rather than going on forever. If they are being supplied from time-to-time,
then you need to have some sort of event-wait on input. The traversal could have a move-next something like this
If at end of tree with no new nodes, wait for input
If at end of tree, with input, reset to start
If at insertion point for new node at top of input queue, insert that
Move to next node in tree
This seems the sort of thing that would naturally be coded in a functional language as a tail recursion rather than an iteration.

Number of Rows, displaying a table with only one row

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