Spry construct to pull last n rows of data set?

Can someone provide a sample construct that would only
display the 5 (for example) most recent entries in an XML feed,
within a spry repeating region? Or alternatively, I have a pubDate
item that I could query to get all items from the last month, week
etc. I'm not sure if I should use a
spry:test construct,
a spry:if construct or something else.
Any help would be greatly appreciated.

Hi Jonesie,
I actually wrote one of those yesterday.
http://www.dbooth.net/spry/rss_test.htm
This uses CF to pull in the RSS feed> That code is just:
<cfprocessingdirective suppresswhitespace="yes">
<cfhttp method="get" url="
http://www.apple.com/main/rss/hotnews/hotnews.rss"
/>
<cfoutput>#cfhttp.fileContent#</cfoutput>
</cfprocessingdirective>
I use XPath filtering to determine the number of rows:
var ds1 = new Spry.Data.XMLDataSet("rss_feed.cfm",
"rss/channel/item[position() >= 0 and position() < 6]");
And then just loop through the Data set that only contains 5
rows.
Another way to do it with with paging:
http://www.dbooth.net/spry/rss_pager.htm
I added page numbers but that isn't required. It can just be
one page.
The filtering can be done either with XPath or a spry:if with
your conditions.
Let me know if you have more questions.
Don

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ERROR: spry:region or spry:detailregion attribute has no data set!

here's the basics...
i'm running fusebox for php (if that makes any difference)
i'm also reusing the same gallery for multiple fuseactions,
and using my circuit.xml file to set the var $gallery
depending on which fuseaction has been called.
the photos already exist in a database and full size and
thumbs have already been created by imagemagick
i plan on writing a script that uses imagemagick to get the
dimensions of the imagefiles and saves them to four respective new
columns in my db table (so i hope the problem isn't related to the
height attributes not being set in my xml.... let's hope it's
somthing else, ok?)
i'm creating my datasets like this
quote:
var dsGallery = new Spry.Data.XMLDataSet("/index.php",
"gallery", { method: "POST", postData: "do=m.get<?php echo
$gallery ?>Gallery", headers: { "Content-Type": "text/xml" });
var dsPhotos = new Spry.Data.XMLDataSet("/index.php",
"gallery/photos/photo", { method: "POST", postData:
"do=m.get<?php echo $gallery ?>Gallery", headers: {
"Content-Type": "text/xml"});
the output xml is perfect... here's an example
http://www.inkincnewyork.com/index.php?do=m.getFlashGallery
since i'm reusing the gallery, and have no need for the
dsGalleries related functionality i did this.
using the long way of referencing each piece of data, just to
make sure it's all kosher
quote:
<div id="thumbnails" spry:region="dsPhotos dsGallery">
<div spry:repeat="dsPhotos"
onclick="HandleThumbnailClick('{ds_RowID}');"
onmouseover="GrowThumbnail(this.firstChild,
'{dsPhoto::photo/@thumbwidth}', '{dsPhoto::photo/@thumbheight}');"
onmouseout="ShrinkThumbnail(this.firstChild);"><img
id="tn{ds_RowID}" alt="thumbnail for {dsPhoto::photo/@thumbpath}"
src="{dsGallery::thumbnail/@base}{dsPhoto::photo/@thumbpath}"
width="24" height="24" style="left: 0px; right: 0px;"
/></div>
<p class="ClearAll"></p>
</div>
but i am now getting this error
spry:region or spry:detailregion attribute has no data set!
for each XMLDataSet
anyone have any ideas?

A few things I noticed when looking at your sample source
above:
The "Content-Type" should be the type for the post data, not
what you expect to get back. So in your case, you should be using:
"Content-Type": "application/x-www-form-urlencoded";
which is the default type so you don't really have to pass it
to the constructor unless you are posting something other than that
type.
Next, your {ds_RowID} data references are missing the data
set prefix. If you use more than one data set for a given region,
you need to use the prefix to make sure you are getting the
ds_RowID from the correct data set.
The error: "spry:region or spry:detailregion attribute has no
data set!" tells me that the data sets are not defined at the time
Spry first processes the region. Are your data sets being created
in a script tag in the head? Or are you creating them in some
function that gets fired off at a specific time?
--== Kin ==--

How to pull last record

hi how to pull last record of a db table.
i want to replace this.
Pull out last record of the period
SELECT mblnr mjahr cpudt cputm
   INTO (gw_act_mkpf-mblnr,gw_act_mkpf-mjahr,
         gw_act_mkpf-cpudt,gw_act_mkpf-cputm)
   FROM mkpf WHERE budat IN s_budat.
ENDSELECT.
suggest

Hi,
I hope following code will solve your problem.
DATA : it_bseg TYPE TABLE OF bseg,
       x_bseg TYPE bseg,
       v_index TYPE i.
SELECT COUNT(*)
FROM bseg
INTO v_index.
SELECT *
FROM bseg
INTO TABLE it_bseg.
READ TABLE it_bseg INTO x_bseg INDEX V_INDEX.
First SELECT will give you the number of rows in a table in v_index. Second SELECT will fetch all table data and then READ will give you the last record of the table in a structure x_bseg.
Regads

How to populate the last empty row in Excel without using Report Generation Kit

I wrote a Labview SUb Vi that uses Report Generation Toolkit that is not loaded on the test stand. I am looking to convert it from Report Generation Vi like New Report, Append Table to Report, Dispose Report. The tunneling through all the report generation Vis seems extensive. Code is attached. Thanks, Greg
Greg

Thank you that was a big help...
I used the Excel Forum to get a lot of great ideas. My code is almost working.
There is a 2-D String Array that represents the String data that I am exporting to the Excel File Sheet 1 - 5.
I am attempting to determine the last populated row in sheet 1 then populate the next row of Sheet 1. Since all 5 sheets are populated every time, I should not have to search every sheet for the last row.
I am getting two row populated on sheet 1 with seeming the same data.
I found an AXExcelWrite2D ArrayWorksheet.vi that I thought would work. I think there is a Table determination that is causing me problems. The link is http://lavag.org/topic/13324-labview-and-excel-activex-or-ado/. The Application Invoke Node has a convert formula with "FromReferenceStyle" with R1C1 Attached to it. I am not sure what this function is doing. When I try to bring the function help up, there is a missing file.
I am including both the new active x vi and the report generation vi. Report Generation VI works.
I would appreciate any assistance I can get on this.
Thanks
Greg
Greg
Attachments:
REPU Test Data Population using Active X Write Save.vi ‏92 KB
REPU Test Data Population.vi ‏60 KB

How to delete duplicate rows in oracle and retaining last duplicate rows

Hi,
I'm having millions of records in the table .Some duplicate values/rows are inserted in it.
I just want to delete duplicate rows but also want to retain the last duplicate row.
For eg if one record is found three times ,i want to delete first and second record and retain
the third one i.e the last inserted one.
Regards
Paramdeep Singh

user13310594 wrote:
Hi,
I'm having millions of records in the table .Some duplicate values/rows are inserted in it.
I just want to delete duplicate rows but also want to retain the last duplicate row.
For eg if one record is found three times ,i want to delete first and second record and retain
the third one i.e the last inserted one.Hi Paramdeep,
To start with, since you do not wish to keep multiple rows with same values, why allow them to get inserted in the first place?
Wouldn't it be easier to block duplicate rows from inserting by creating a Unique constraint on Column(s) that define a row as duplicate, then rather deleting duplicate rows periodically?
For deleting duplicate rows, there are N number of techniques available. Always remember, you need to have a rigid criteria that marks row as duplicate.
[url http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:15258974323143]this is one recomended by tom for large tables.
Vivek L

How can I get only the last 2 rows?

How can I narrow down a query to get only the last two rows in a table ?
Thanks,
Mohan

Thanks a lot Ram for your suggestion but already I have a query which returns a set of rows, of which I would like to further filter and get the last two rows
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Ramanuj Bangad ([email protected]):
try out something like this if it helps.
Example:
select * from users
where rownum <= (select count(*) from users)
minus
select * from users
where rownum <= (select count(*) -2 from users )
<HR></BLOCKQUOTE>
null

How to get the values of last selected row in Table?

Hi,
I have one editable table , where i have Create, Delete and Commit operation on it.
When i am clicking on Create button it add new row to my table.
But I want the value of my last selected row from the table in my Bean.
Can anyone suggest me please....... its urgent
Jdev:- 11.1.1.0.3
Thanks,
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just get this code empTable is the table binding
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                CollectionModel model = (CollectionModel)empTable.getValue();
      RowKeySet selectedRowKeys = empTable.getSelectedRowKeys();
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                empTable.setSelectedRowKeys(rks);
      AdfFacesContext.getCurrentInstance().addPartialTarget(empTable);
    public void setEmpTable(RichTable empTable) {
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Using alternate rows with Spry Data Set

Can anyone provide more information on how to implement alternate row colors with a Spry Data Set? What I have done is:
Create spry data set using HTML page as the data set
The html page that displays the data set is: <div spry:region="equipment">
In the default.css page that is linked, I added the info in note #1 below
When the page displays, no colors appear. Tried changing the colors and still no luck. Is there another step to do?
Note #1:
within the default.css, the following are declared:
#equipment odd {
background-color: #CCC;
#equipment even {
background-color: “#F2F2F2;
Note #2:
Here is a link to see the actual pages referenced above.
Any ideas? Getting frustrated!! Thanks in advance for any advice.

You are going to kick yourself, but, you haven't assigned any page element the ID #equipment. The region is called that but the table or the DIV does not have an idea and your selector matches nothing...

Spry xml data set, accessing specific rows

Hello. I've been trying to build a website using Spry XML
Data Sets, and while I've accomplished my goals for now, I don't
think the solution I came up with is the best.
The website consists of several areas that show projects.
Each project has several fields that are to be filled with content
retrieved from the xml files, but the projects are not all exactly
alike and some have specific fields that others don't require.
All the info is available in several languages, so for now
I've created an xml file for each one. An xml file could be like
Code Part1. (Why I can't add several code snippets along the post
baffles me. I mean, I can't, right?)
This dataset, for simplicity purposes, is not dependent on
the language (Code Part2).
And then there are the content areas (Code Part3).
So as you see, each project has its own structure. This makes
using spry:repeat a not very effective method for filling in all
the content. Ideally I should be able to access each row in the
dataset through some sort of value, like id, or one of its
children's values. The ds_RowID depends on the row order, so unless
there's another way to use it, it doesn't solve my problem.
Here's what I've come up with (Code Part4).
This works (in FF3 OSX, at least), although there are some
other problems that might make it necessary to create a spry:region
(or at least use spry:repeat) for each field. Anyway, it sounds
silly and wasteful to go through every row of the dataset everytime
for each of the fields that need to be filled.
My hope is that I'm ignorant of some much better method of
achieving my goals, something more direct and elegant.
Can anyone help me out with this? Thank you very much in
advance.

Hi there
You are indeed absolutely correct a spry region should have been shown, my appologise for that, the code is wrapped in a standard spry region.
That being said i have used a work around in the SQL SELECT statement of the xmlExportObj, Recordset to find the information required without having to do any IF, ELSE on the page.
Many thanks for your reply and for pointing out my mistake in how I had presented my question.
My next question is to follow seperately
Regards
Ray

How to: Display Last n Rows in a table

I am currently running Crystal Reports XI and have been tasked with developing a report that displays only the last 30 rows in a table in ascending order (the records are used for showing data trends over time in a line graph). I have created a Command to extract the records, and by using the TOP 30 statement I can get the first 30 rows in proper order; however, in order to get the last 30 rows I have to sort the records in descending order. This gives me the last 30 rows that I need, but the data is in descending order. Is there another way to get the last 30 rows in a table so that the records come out in ascending order?
The Command I am using looks like this:
SELECT TOP 30 ROWID FROM MYTABLE ORDER BY ROWID DESC
(The ROWID field is alpha numeric)

Hi,
Create a Group based on Rowid in the order-Ascending. This Group should contain all the fields that you require to print along with Rowid. Therafter insert Summary like sum,count etc for for any field within the group of the type numbervar(numeric). This would activate the Group Sort Expert in the Report Menu. Click on it and select Bottom N (with N as 30) within nature of Sort and suppy the fieldname as Rowid.
Hope this solves.....
Thanks,
Amogh.

Last Inserted Row in a Table

Hi,
I want to select only the last inserted row in a table. Can anybody help me how can i get it.
Eg
select * from emp;
empno ename sal
12 abc 100
13 xyz 200
Now i have inserted a row as
Insert into emp values (14,'Rohit',500);
So i only want to select the last inserted row i.e.. empno 14 (in this case).
Thanks
Bye
Rohit Taneja

Thanks to all for replying.
But the result is not which i desire.
I have deleted the existing row in the same table as
SQL> Delete from emp where empno = 13;
1 row deleted.
Then i inserted a new row as
SQL> insert into emp values(10,'SRI',200);
1 row created.
Then i committed the work
SQL> commit;
Commit complete.
But still am getting the last row as
SQL> select * from emp
where rowid=(select max(rowid)
from emp);
EMPNO ENAME SAL
14 ROHIT 500
as the solution.
But here i am supposed to get the row with empno 10.
I have tried both the queries and still geting the same result.
Please look aat it again,
Thanks in advance
Bye
Rohit Taneja
Hi,
I want to select only the last inserted row in a
table. Can anybody help me how can i get it.
Eg
select * from emp;
empno ename sal
12 abc 100
13 xyz 200
Now i have inserted a row as
Insert into emp values (14,'Rohit',500);
So i only want to select the last inserted row i.e..
empno 14 (in this case).
Thanks
Bye
Rohit Taneja

Query for last four rows?

please write query for get the last four rows from a table

ratnakar wrote:
please write query for get the last four rows from a tablelast 4 rows is indeterminate.
rows in a table are like balls in a basket.
which are last 4 balls in any basket?
Handle:     ratnakar
Email:     [email protected]
Status Level:     Newbie
Registered:     Aug 27, 2012
Total Posts:     34
Total Questions:     16 (11 unresolved)
why so MANY unanswered questions?

GridControl show the last two rows in blank

I'm using JDeveloper 3.2.2 with jdk 1.3 developing a swing
application.
I have a form with a gridControl binded to one view of my bc4j
application module.
When the number of records from the view excedes the maximum
number of rows visibles in the area of the gridControl the last
two rows of the gridControl are showed blank.
There is no problem when I scroll through the grid control.
This problem doesn't appear using JDK 1.2.2, provided with
Jdeveloper, but I would like to use 1.3.1.
Thanks in advance
Alex.

You don't need to do Sum for this, you should use Sum for all rows purpose only..
$.rawValue = subform_Hidden.sub_SupportTotals.tbl_SupportSubtotals.DataRow[0]. SUBTOTAL + subform_Hidden.sub_SupportTotals.tbl_SupportSubtotals.DataRow[1].SUBT OTAL

How to fetch last inserted row in MySQL

Hi,
I am trying to get the last inserted row in MySql..but not able to fetch it.
this is what i used
i have one column order_id which is auto_increment
SELECT * FROM tablename WHERE order_id=(SELECT MAX(order_id) FROM tablename)
any help is appreciated .
the usage of lastinsert() method is also not successful
chintan

Hello
Given you have a date column, you can use it to determine the latest row. However, there is still a chance that two rows were inserted at exactly the same time in which case you will need something in addition to your date column to decide which is the latest...
The first option uses a sub query and the second uses analytics, as does the 3rd - however with the 3rd, if 2 rows have exactly the same date and time, it will pick one at random unless you include another column in the order by to determine the latest...
select
FROM
    your_table
WHERE
    your_date_column = (SELECT MAX(your_date_column) from your_table)
SELECT
FROM
        select
            a.*,
            MAX(your_date_column) OVER() max_date_column
        FROM
            your_table a
WHERE
    your_date_column = max_date_column
SELECT
FROM
        select
            a.*,
            ROW_NUMBER OVER(ORDER BY your_date_column DESC) rn
        FROM
            your_table a
WHERE
    rn = 1HTH
David

Getting last x rows written to the DB

Hi all
I have written some data to my table and wanted to know the best way of getting the last x rows written to the table?
Thanks for any suggestions.

Probably I come a little late here, but here is my suggestion:
WITH data AS (SELECT SYSDATE + 1 / 24 AS col1
                FROM DUAL
              UNION ALL
              SELECT SYSDATE + 2 / 24 AS col1
                FROM DUAL
              UNION ALL
              SELECT SYSDATE + 6 / 24 AS col1
                FROM DUAL
              UNION ALL
              SELECT SYSDATE + 1 / 24 AS col1
                FROM DUAL
              UNION ALL
              SELECT SYSDATE + 4 / 24 AS col1
                FROM DUAL
              UNION ALL
              SELECT SYSDATE + 5 / 24 AS col1
                FROM DUAL
              UNION ALL
              SELECT SYSDATE + 6 / 24 AS col1
                FROM DUAL
              UNION ALL
              SELECT SYSDATE + 2 / 24 AS col1
                FROM DUAL
              UNION ALL
              SELECT SYSDATE + 1 / 24 AS col1
                FROM DUAL
              UNION ALL
              SELECT SYSDATE + 3 / 24 AS col1
                FROM DUAL
              UNION ALL
              SELECT SYSDATE + 1 / 24 AS col1
                FROM DUAL
              UNION ALL
              SELECT SYSDATE + 3 / 24 AS col1
                FROM DUAL
              UNION ALL
              SELECT SYSDATE + 1 / 24 AS col1
                FROM DUAL
              UNION ALL
              SELECT SYSDATE + 6 / 24 AS col1
                FROM DUAL)
SELECT *
FROM (SELECT col1,
               DENSE_RANK () OVER (ORDER BY col1 DESC) AS rnk
          FROM data)
WHERE rnk = 1
/So, if you have some sort of data and a column of datetime type, you can sort the data in descending order by this datetime column and then take the "last" rows, e.g. the rows which value in the datetime column is the oldest one.

Spry construct to pull last n rows of data set?

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