Extrapolating data to plot where expected points would be on a graph

Hi,
For a physics excel project I need to reproduce a graph identically that was given to me. I am trying to do all of it on numbers instead of buying excel, and I was able to figure out everything, except for this box on the graph.
It is a dotted line with a x and y component that shows were a point would be plotted that had a lower x value then the lowest x real value.
The text given to us that is pointing towards the dotted line box is as follows:
"By extrapolation of the data, the period of a 0.15 kg oscillator is expected to be approximately 0.55 seconds."
If anyone has any clue how to get this on numbers, it would be appreciated.
If you dont understand what im describing, you can post your email and I will send the picture your way, because its difficult to describe
Thanks in advance

You may click my blue name to get my address.
I will be able to look the beast tomorrow.
Yvan KOENIG (VALLAURIS, France) lundi 14 septembre 2009 21:08:20

Similar Messages

I want to plot a waveform chart where I have a constant slope(defined by me) and new data is plotted over the chart with the defined slope already in the background.

I want my chart to have a constant slope already plotted before it continues to start plotting the real time data.. so that I can compare my new data point to point with the ideal slope that i already have in the background
Solved!
Go to Solution.

raza51 wrote:
Hi,
Thanks for help.. But this would work when i have one array and a constant "slope". What if I want to print 2 arrays of data.. means if there is an array of data instead of constant "slope"...
Since your graph is refreshed every time you go through the loop anyway, just set up the constant/reference array before the loop and feed it into the graph. That way you'll also have a full X-axis (and a Y-axis which at least includes all the reference data) for the graph already set up.
(That's twice in two days I've been scooped by a couple of minutes, I've got to get my typing speed up...)
Cameron
To err is human, but to really foul it up requires a computer.
The optimist believes we are in the best of all possible worlds - the pessimist fears this is true.
Profanity is the one language all programmers know best.
An expert is someone who has made all the possible mistakes.
To learn something about LabVIEW at no extra cost, work the online LabVIEW tutorial(s):
LabVIEW Unit 1 - Getting Started
Learn to Use LabVIEW with MyDAQ

How do I get the numbers ipad app to plot a graph of dates against values, where the most recent date is on the right of the graph, but the most recent date is at the top rather than bottom of the rows in the table?

How do I get the numbers ipad app to plot a graph of dates against values, where the most recent date is on the right of the graph, but the most recent date is at the top rather than bottom of the rows in the table?
Also how can it be a line graph without plotting a circle at each value?
Thanks this is very frustrating

Make a copy of the table and produce your Line chart or Bar chart from the copy. Sort the copy into the order you want to see in your chart.
Alternately you could use a Scatter Chart...
Jerry

I am running MS Office for Mac 2008 on my MacBook Pro. I do not have the Standard and Formatting toolbar fixed into position, as I would expect and would like. I can access them via the View menu, where I have to select and de-select them before I can g

I am running MS Office for Mac 2008 on my MacBook Pro. I do not have the Standard and Formatting toolbar fixed into position, as I would expect and would like. I can access them via the View menu, where I have to select and de-select them before I can get them to display, but lose them when I log off. Can anyone help? I have tried all the usual and supplied help facilities to no avail. Thanks

Post the question in Microsoft's own Office for Mac forum.

Bi Dashboards issue works properly some times and after not display pointers data and give un expected error and throw login window

HI,
I have toff situation where we deployed bi dashboards in our site and it works some time and some times not,
and some times it keep loading and throw a login window.
works when
we restart performance point service and if not work
we re create secure store service and generated new key and create new pps service application
before that we stopped secure store and pps service using c.a in application server
we are using ssas for datasource to connect from dashboard designer
we have seperate server for ssas dbs
seperate application server running: pps service and secure store service
two web front ends: one of running secure store
1 Domain controller + central admin service running
some times after 4 -5 hours bi dashboards works , we dashboards not display data and throw un expected errors,
also when we try to connect using a dashboard designer from a seperate client machine in same domain ,we have same issue , we unable to connect to ssas datasource server, and if connect some times unable to deploy dashboards.
we tried every thin icreased server time out values in ssas server
:\Program Files\Microsoft SQL Server\MSAS10_50.MSSQLSERVER\OLAP\Config\msmdsrv.ini. in this location
and in
c:\program files\common files\microsoft shared\web server extensions\14\webclients\ppsmonitoringServer\client.config
maxStringContentLength="2147483647"
maxNameTableCharCount="2147483647"
maxBytesPerRead="2147483647"
maxArrayLength="2147483647"
maxDepth="2147483647" />
even we have same issue
is some thing happening when dashboards working some time and after some time not
is a secure store crashing or its still request pending in IIS and not authenticating to data soruce why
below are the logs
Here are the results of the log analysis :
server wfe1
09/01/2014 14:43:44.66 w3wp.exe (0x2128) 0x158C PerformancePoint Service PerformancePoint Services 39 Critical A PerformancePoint service application call was aborted by the caller. This may indicate the HttpRuntime executionTimeout for the Web Application
is configured to a value smaller than the DataSourceQueryTimeout for the PerformancePoint Service Application. 8bc44f14-acef-49bf-b1c1-2755ea7e6e24
09/01/2014 14:43:44.66 w3wp.exe (0x2128) 0x158C PerformancePoint Service PerformancePoint Services ef8z Critical ‏‏حدث
استثناء
أثناء عرض
عنصر ويب.
قد تساعد
معلومات التشخيص
التالية في
تحديد سبب
هذه المشكلة: Microsoft.PerformancePoint.Scorecards.BpmException: ‏‏لقد
انتهت
مهلة الطلب
أو تم
إجهاضها. تم
تسجيل تفاصيل
إضافية من
أجل المسؤول. ‏‏رمز
خطأ "خدمات PerformancePoint"
هو 20700. 8bc44f14-acef-49bf-b1c1-2755ea7e6e24
09/01/2014 14:43:44.66 w3wp.exe (0x2128) 0x158C SharePoint Foundation Runtime ba3q Medium Redirect to error.aspx?ErrorText=Request%20timed%20out%2E failed. Exception: System.Web.HttpException: The remote host closed the connection. The error code is 0x800704CD.
at System.Web.Hosting.IIS7WorkerRequest.RaiseCommunicationError(Int32 result, Boolean throwOnDisconnect)     at System.Web.Hosting.IIS7WorkerRequest.ExplicitFlush()     at System.Web.HttpResponse.Flush(Boolean finalFlush)
at System.Web.HttpResponse.End()     at Microsoft.SharePoint.Utilities.SPUtility.Redirect(String url, SPRedirectFlags flags, HttpContext context, String queryString) 8bc44f14-acef-49bf-b1c1-2755ea7e6e24
09/01/2014 14:47:32.69 w3wp.exe (0x2128) 0x2154 Web Content Management Publishing Cache 7363 Critical Object Cache: The super reader account utilized by the cache does not have sufficient permissions to SharePoint databases. To configure the account use
the following command 'stsadm -o setproperty -propertyname portalsuperreaderaccount -propertyvalue account -url webappurl'. It should be configured to be an account that has Read access to the SharePoint databases. Additional Data: Current default
super reader account: NT AUTHORITY\LOCAL SERVICE 78c107cd-0d4b-46f5-8e1a-0d9b4ebc7b29
09/01/2014 15:07:40.74 w3wp.exe (0x2128) 0x209C PerformancePoint Service PerformancePoint Services 20 Critical The user "i:Anonymous" attempted to access an item in the following location:
http://www.xxx.xxx.sa/ar-sa/Notary/Rspointer/Lists/PerformancePoint Content/28_.000 Verify that the location exists and that the user has the "Read Items" permission.
Exception details: Microsoft.PerformancePoint.Scorecards.BpmException: ‏‏لقد
انتهت
مهلة الطلب
أو تم
إجهاضها. تم
تسجيل تفاصيل
إضافية من
أجل المسؤول.     at Microsoft.PerformancePoint.Scorecards.Store.Dao.SPListItemDao.Get(ISPFcoCache cache, Guid webSiteID, RepositoryLocation location, SPListItem item)
at Microsoft.PerformancePoint.Scorecards.Store.Dao.SPListItemDao.Get(ISPFcoCache cache, Guid webSiteID, RepositoryLocation location)     at Microsoft.PerformancePoint.Scorecards.Store.SPDataStore.SPItemGet(RepositoryLocation location, String
spObjectTypeId) abf0263d-7333-4e4f-9cd4-a3a4dcb700c0
09/01/2014 15:13:25.92 w3wp.exe (0x2128) 0x18DC PerformancePoint Service PerformancePoint Services 20 Critical The user "i:Anonymous" attempted to access an item in the following location:
http://www.xxx.xxx.sa/ar-sa/Notary/Rspointer/Lists/PerformancePoint Content/218_.000 Verify that the location exists and that the user has the "Read Items" permission.
Exception details: Microsoft.PerformancePoint.Scorecards.BpmException: ‏‏لقد
انتهت
مهلة الطلب
أو تم
إجهاضها. تم
تسجيل تفاصيل
إضافية من
أجل المسؤول.     at Microsoft.PerformancePoint.Scorecards.Store.Dao.SPListItemDao.Get(ISPFcoCache cache, Guid webSiteID, RepositoryLocation location, SPListItem item)
at Microsoft.PerformancePoint.Scorecards.Store.Dao.SPListItemDao.Get(ISPFcoCache cache, Guid webSiteID, RepositoryLocation location)     at Microsoft.PerformancePoint.Scorecards.Store.SPDataStore.SPItemGet(RepositoryLocation location, String
spObjectTypeId) b35bf864-54f4-43fa-88a8-44cdf938bfa2
09/01/2014 15:11:10.87 w3wp.exe (0x2128) 0x1F88 PerformancePoint Service PerformancePoint Services 20 Critical The user "i:Anonymous" attempted to access an item in the following location:
http://www.xxx.xxx.sa/ar-sa/Courts/Bic/Lists/PerformancePoint Content/4_.000 Verify that the location exists and that the user has the "Read Items" permission.
Exception details: Microsoft.PerformancePoint.Scorecards.BpmException: ‏‏لقد
انتهت
مهلة الطلب
أو تم
إجهاضها. تم
تسجيل تفاصيل
إضافية من
أجل المسؤول.     at Microsoft.PerformancePoint.Scorecards.Store.Dao.SPListItemDao.Get(ISPFcoCache cache, Guid webSiteID, RepositoryLocation location, SPListItem item)
at Microsoft.PerformancePoint.Scorecards.Store.Dao.SPListItemDao.Get(ISPFcoCache cache, Guid webSiteID, RepositoryLocation location)     at Microsoft.PerformancePoint.Scorecards.Store.SPDataStore.SPItemGet(RepositoryLocation location, String
spObjectTypeId) 7cea0eb6-214f-4d7b-a6e7-97a0fe11c956
09/01/2014 15:11:40.87 w3wp.exe (0x2128) 0x2150 PerformancePoint Service PerformancePoint Services 20 Critical The user "i:Anonymous" attempted to access an item in the following location:
http://www.xxx.xxx.sa/ar-sa/Notary/Rspointer/Lists/PerformancePoint Content/162_.000 Verify that the location exists and that the user has the "Read Items" permission.
Exception details: Microsoft.PerformancePoint.Scorecards.BpmException: ‏‏لقد
انتهت
مهلة الطلب
أو تم
إجهاضها. تم
تسجيل تفاصيل
إضافية من
أجل المسؤول.     at Microsoft.PerformancePoint.Scorecards.Store.Dao.SPListItemDao.Get(ISPFcoCache cache, Guid webSiteID, RepositoryLocation location, SPListItem item)
at Microsoft.PerformancePoint.Scorecards.Store.Dao.SPListItemDao.Get(ISPFcoCache cache, Guid webSiteID, RepositoryLocation location)     at Microsoft.PerformancePoint.Scorecards.Store.SPDataStore.SPItemGet(RepositoryLocation location, String
spObjectTypeId) 4154222b-6ff0-4b64-81b8-d08501a19278
server wfe 2
09/01/2014 14:50:59.05 w3wp.exe (0x1294) 0x1D88 Web Content Management Publishing Cache 7363 Critical Object Cache: The super reader account utilized by the cache does not have sufficient permissions to SharePoint databases. To configure the account use
the following command 'stsadm -o setproperty -propertyname portalsuperreaderaccount -propertyvalue account -url webappurl'. It should be configured to be an account that has Read access to the SharePoint databases. Additional Data: Current default
super reader account: NT AUTHORITY\LOCAL SERVICE 382f711d-cdad-4c5d-be88-2e7d6f36dde2
09/01/2014 14:50:59.05 w3wp.exe (0x1294) 0x1D88 Web Content Management Publishing Cache 7363 Critical Object Cache: The super reader account utilized by the cache does not have sufficient permissions to SharePoint databases. To configure the account use
the following command 'stsadm -o setproperty -propertyname portalsuperreaderaccount -propertyvalue account -url webappurl'. It should be configured to be an account that has Read access to the SharePoint databases. Additional Data: Current default
super reader account: NT AUTHORITY\LOCAL SERVICE 382f711d-cdad-4c5d-be88-2e7d6f36dde2
09/01/2014 14:50:59.05 w3wp.exe (0x1294) 0x1D88 Web Content Management Publishing Cache 7363 Critical Object Cache: The super reader account utilized by the cache does not have sufficient permissions to SharePoint databases. To configure the account use
the following command 'stsadm -o setproperty -propertyname portalsuperreaderaccount -propertyvalue account -url webappurl'. It should be configured to be an account that has Read access to the SharePoint databases. Additional Data: Current default
super reader account: NT AUTHORITY\LOCAL SERVICE 382f711d-cdad-4c5d-be88-2e7d6f36dde2
09/01/2014 14:50:59.05 w3wp.exe (0x1294) 0x1D88 Web Content Management Publishing Cache 7363 Critical Object Cache: The super reader account utilized by the cache does not have sufficient permissions to SharePoint databases. To configure the account use
the following command 'stsadm -o setproperty -propertyname portalsuperreaderaccount -propertyvalue account -url webappurl'. It should be configured to be an account that has Read access to the SharePoint databases. Additional Data: Current default
super reader account: NT AUTHORITY\LOCAL SERVICE 382f711d-cdad-4c5d-be88-2e7d6f36dde2
In the Roiscan logs we get an error in regards to the English Language pack:
Review Items
============
Error:                       Product {90140000-1015-0409-1000-0000000FF1CE} - Microsoft SharePoint Foundation 2010 1033 Lang Pack: has unexpected
file state(s).
adil

chinnijagadeesh,
You suck!
Signed: The rest of the universe.
... and quit crossposting FFS... it really is quite annoying!

Can I show a data label for only one point in a series?

Forgive a newbie question from an Excel convert, but can I show a value label for only one point in a data series? If yes, how?
There are a number of graphs where I only want to value of either an extreme value or the ending value to show. Having all the labels in a series makes the chart too busy. This is pretty easy to do in Excel.
If this can't be done, I guess that adding a text box over those points would work.
Thanks

Hi W-T,
Welcome to Apple Discussions and the Numbers '09 forum.
wahoo_tiger wrote:
Forgive a newbie question from an Excel convert, but can I show a value label for only one point in a data series? If yes, how?
Sure. Here's and example labeling only the MIN and MAX points.
Column B contains the data charted with the blue line.
Column C extracts the MIN and MAX values using the formula below. Those two values are charted as a separate series, using the green data point markers, and are labeled with their values. The intervening empty string values appear to have doused the lines connecting the two data points.
Formula: =IF(OR(B=MAX(B),B=MIN(B)),B,"")
Regards,
Barry

Plotting dynamic data but plot showing previous acquired data too

Hi, I am trying to plot a voltage-signal graph simultaneously, as it is being acquired by the computer from the SR830 lock-in amplifier. I have used a X-Y plot and placed it inside the for loop where the data is being acquired. <It only shows me the last point instead of all the points acquired earlier too. I want to retain the earlier data plot as well instead of just the last data point but want to update the graph as the data are acquired sequentially. If I put the x-y plot outside the loop. it will acquire a set of data before plotting which is not desirable in my case, as data has to be plotted dynamically. Can u guys please suggest me a way. Am I doing something wrong? thanks in advance.
Please find the VI attached.
Solved!
Go to Solution.
Attachments:
select voltage freq amp VISA 6.vi ‏67 KB

Cory K wrote:
altenbach wrote:
The "built xy graph" express VI has a "reset?" input. Wire a true to it to reset the internal data. In your particular case do a "=0" on the iteration terminal of the inner for loop and wire it to the reset input.
Now I'm confused. Does he want to keep the previous data or not?
He made it sound like he is only getting 1 point in the graph, but he wants to keep all of the data in the graph
Sorry, my message was incomplete. You need to double-click the "build xy graph" express VI and un-check "clear data on each call". Easy enough?
Whenever you want to start over, wire a true to the reset input to clear the history.
LabVIEW Champion . Do more with less code and in less time .
Attachments:
xy.png ‏29 KB

Problem with date fields in where clause after changing driver

Hi,
We have changed the oracle driver we use to version 10
and now we have some trouble with date-fields.
When we run this SQL query from our Java program:
select *
from LA_TRANS
where LA_TRANS.FROM_DATE>='20040101' AND LA_TRANS.FROM_DATE<='20041231'
We get this error code:
ORA-01861: literal does not match format string
The query worked fine whit the previous driver.
Is there some way I can run a SQL query with date fields
as strings in the where clause?
Thanks!

Keeping the argument of standard SQL or not aside, comparing DATE columns to a constant string (which looks like a date in one of the thousands of the formats available, but not in others) is NOT one of the best programming practices and leads to heartburn and runtime errors (as you have seen yourself).
I would rather compare a DATE to a DATE.
Also, constants like that would be another issue to fix in your code:
http://asktom.oracle.com/pls/ask/f?p=4950:8:6899751034602146050::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:528893984337,

'FROM keyword not found where expected'error while Inserting into Text file

Hi,
I have created a simple interface for testing purpose. All it has to do is to Read the data from a Source Text file and put it into another text file (exactly the same headers as that of source) ...
I am using Oracle as my staging area.
But at 'Insert column Header' Stage, it gives me a warning 'FROM keyword not found where expected' and when it goes to the next step 'Insert Rows' it gives me the same error 'FROM keyword not found where expected' and aborts its execution.
I checked the query for insertion and found nothing wrong in it (FROM Statement is just where it is expected, that is) but somehow its not working.
Can somebody help me out as i have done it before on other Installations and dont know why it is occuring that too for the simplest thing in ODI ...
Regards,
Nitesh.

Probably you missed the concat operator.
select rpad(nvl(lu_parid,' '),1,19)|| v_comma ||
rpad(nvl(lu_class,' '),1,3)
from temp_te07

How do I set the transition between access points would be fine?

Hello everyone,
We have an organization Wirless controller 2504 with 20 aironet access-point (700 series)
Once I defined all the access points I noticed that the transition between them is not working fine...
I mean that clients can not walk around in our organization without having to connect to any access point separately.
How do I set the transition between access points would be fine?
Thanks a lot (:

HI Omri,
which software version you have on WLC ?
Is the site survey done propely ?
Remember: It is the client that decides when to roam and which AP to connect to based on what it perceives the signal to be.
If your site survey design is perfect and still have problems while roaming then:
Disable your lower data rates on the 2.4ghz and or 5ghz radio and your clients will roam better. Try to disable everything below 11mbps. and give that a try.May be old device will work in this case.
Regards
Dont forget to rate helpful posts

Repeatative answers expecting points!

All,
I would like to continue the discussion that Ruchit and Juan started in the thread How can we verify transport request before do the transported. in a more formal way so that all the members are aware of whats going on.
As Ruchit and Juan said, in the near past it is seen that some members in this community keep on giving the same answers (that has already been answered in the same thread itself) expecting points. This is realy useless and uncalled for and frustrating at times.
I think one major reason for this is to get the points and the T-shirt, but incase you guys are not aware, T-shirts wont be awarded from now on. Instead the money spent on shipping the shirts will be used to feed school children in third world countries. Read this blog from Mark : /people/mark.finnern/blog/2007/11/28/food-for-points
This i believe is an EXCELLENT move and offcourse would mean that those who post only with the sole motive of getting the T-Shirt will take a backseat and would bring the true contributors to the forefront.
I believe that all the members in the community are matured enough to know that the primary motive of this community is to exchange knowledge amongst us so that all of us can grow technically and the awarding of points is just a way to express your thanks. Mastering Basis is all about learning from others about things you dont know and teaching others all that you do know.
So, lets make sure we use this community in the right spirit so that all of us can be benifited!
Feel free to express your thoughts and opinions on this in this thread.
Cheers!
Bidwan

Hii Bidwan!!!
Can you answer my post, by name of KAPIL few minutes ago. Its really urgent. I am finding myself as a helpless person. waiting for your reply.

Make the data for a registry key point to the installation folder of my app.

I have an application that creates files with a unique file extension (.myextension). These files should be associated with a particular icon so that the icon is shown when they are viewed in Windows Explorer, etc. I know how to do this when I create an installer by adding several registry keys and values under the [HKEY_CLASSES_ROOT] key as shown below.
                   key                                                name              type                                   data
[HKEY_CLASSES_ROOT]
     .myextension                                         (Default)          REG_SZ               Myextension.file.type.record
     Myextension.file.type.record              (Default)          REG_SZ               Text description of file type
               DefaultIcon                                  (Default)          REG_SZ               path to the icon file.
The key for the file extension record (.myextension) has a default value where the data points to the key for the file type record (Myextension.file.type.record). The data for the default value of the Myextension.file.type.record key is just a description for the file type. There is also a subkey called DefaultIcon. The data for it's default value is the path to the file containing the icon that is to associated with the file type. If the file contains more than one icon, it may be necessary to modify the data (path) to indicate which icon to use.
So, this is all good if path to the file containing the icon is known. I added an icon file to the build when I built my application and it will be installed in a known location within the directory where my application is installed. The location is [InstallDirectory]data\myicon.ico, where [InstallDirectory] is the directory where my application is installed. The installation process, including the addition of registry keys is handled by an installer that I have created. The problem arises when the user choses to install to a location other than the default directory specified in the installer. I can't know before hand where that will be. How can I specify the path in the DefaultIcon key so that it points to the correct location after installation? Is there some symbol that I can use for the installation directory so that the path will be set correctly at installation time?

Hi cbfsystems,
If correctly understand what you are trying to do, check this out. This shows you how to add a user-specified install directory to a registry entry in the installer build spec.
Cheers,
Brian A.
National Instruments
Applications Engineer

[svn:fx-4.x] 13997: Addressed an IE8 history issue where our player would lose focus upon appending a history entry .

Revision: 13997
Revision: 13997
Author:   [email protected]
Date:     2010-02-05 07:53:15 -0800 (Fri, 05 Feb 2010)
Log Message:
Addressed an IE8 history issue where our player would lose focus upon appending a history entry. The behavior is unique to IE8.
Anyone bundling our stock html template would require refreshing their copy of history.js.
QE notes: None
Doc notes: None
Bugs: SDK-23402
Reviewer: Alex
Tests run: Checkin
Is noteworthy for integration: Yes
Ticket Links:
    http://bugs.adobe.com/jira/browse/SDK-23402
Modified Paths:
    flex/sdk/branches/4.x/templates/swfobject/history/history.js

Performance with dates in the where clause

Performance with dates in the where clause
CREATE TABLE TEST_DATA
FNUMBER NUMBER,
FSTRING VARCHAR2(4000 BYTE),
FDATE DATE
create index t_indx on test_data(fdata);
query 1: select count(*) from TEST_DATA where trunc(fdate) = trunc(sysdate);
query 2: select count(*) from TEST_DATA where fdate between trunc(sysdate) and trunc(SYSDATE) + .99999;
query 3: select count(*) from TEST_DATA where fdate between to_date('21-APR-10', 'dd-MON-yy') and to_date('21-APR-10 23:59:59', 'DD-MON-YY hh24:mi:ss');
My questions:
1) Why isn't the index t_indx used in Execution plan 1?
2) From the execution plan, I see that query 2 & 3 is better than query 1. I do not see any difference between execution plan 2 & 3. Which one is better?
3) I read somewhere - "Always check the Access Predicates and Filter Predicates of Explain Plan carefully to determine which columns are contributing to a Range Scan and which columns are merely filtering the returned rows. Be sceptical if the same clause is shown in both."
Is that true for Execution plan 2 & 3?
3) Could some one explain what the filter & access predicate mean here?
Thanks in advance.
Execution Plan 1:
SQL> select count(*) from TEST_DATA where trunc(fdate) = trunc(sysdate);
COUNT(*)
283
Execution Plan
Plan hash value: 1486387033
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 9 | 517 (20)| 00:00:07 |
| 1 | SORT AGGREGATE | | 1 | 9 | | |
|* 2 | TABLE ACCESS FULL| TEST_DATA | 341 | 3069 | 517 (20)| 00:00:07 |
Predicate Information (identified by operation id):
2 - filter(TRUNC(INTERNAL_FUNCTION("FDATE"))=TRUNC(SYSDATE@!))
Note
- dynamic sampling used for this statement
Statistics
4 recursive calls
0 db block gets
1610 consistent gets
0 physical reads
0 redo size
412 bytes sent via SQL*Net to client
380 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
Execution Plan 2:
SQL> select count(*) from TEST_DATA where fdate between trunc(sysdate) and trunc(SYSDATE) + .99999;
COUNT(*)
283
Execution Plan
Plan hash value: 1687886199
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 9 | 3 (0)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | 9 | | |
|* 2 | FILTER | | | | | |
|* 3 | INDEX RANGE SCAN| T_INDX | 283 | 2547 | 3 (0)| 00:00:01 |
Predicate Information (identified by operation id):
2 - filter(TRUNC(SYSDATE@!)<=TRUNC(SYSDATE@!)+.9999884259259259259259
259259259259259259)
3 - access("FDATE">=TRUNC(SYSDATE@!) AND
"FDATE"<=TRUNC(SYSDATE@!)+.999988425925925925925925925925925925925
9)
Note
- dynamic sampling used for this statement
Statistics
7 recursive calls
0 db block gets
76 consistent gets
0 physical reads
0 redo size
412 bytes sent via SQL*Net to client
380 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows
Execution Plan 3:
SQL> select count(*) from TEST_DATA where fdate between to_date('21-APR-10', 'dd-MON-yy') and to_dat
e('21-APR-10 23:59:59', 'DD-MON-YY hh24:mi:ss');
COUNT(*)
283
Execution Plan
Plan hash value: 1687886199
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 9 | 3 (0)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | 9 | | |
|* 2 | FILTER | | | | | |
|* 3 | INDEX RANGE SCAN| T_INDX | 283 | 2547 | 3 (0)| 00:00:01 |
Predicate Information (identified by operation id):
2 - filter(TO_DATE('21-APR-10','dd-MON-yy')<=TO_DATE('21-APR-10
23:59:59','DD-MON-YY hh24:mi:ss'))
3 - access("FDATE">=TO_DATE('21-APR-10','dd-MON-yy') AND
"FDATE"<=TO_DATE('21-APR-10 23:59:59','DD-MON-YY hh24:mi:ss'))
Note
- dynamic sampling used for this statement
Statistics
7 recursive calls
0 db block gets
76 consistent gets
0 physical reads
0 redo size
412 bytes sent via SQL*Net to client
380 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed

Hi,
user10541890 wrote:
Performance with dates in the where clause
CREATE TABLE TEST_DATA
FNUMBER NUMBER,
FSTRING VARCHAR2(4000 BYTE),
FDATE DATE
create index t_indx on test_data(fdata);Did you mean fdat<b>e</b> (ending in e)?
Be careful; post the code you're actually running.
query 1: select count(*) from TEST_DATA where trunc(fdate) = trunc(sysdate);
query 2: select count(*) from TEST_DATA where fdate between trunc(sysdate) and trunc(SYSDATE) + .99999;
query 3: select count(*) from TEST_DATA where fdate between to_date('21-APR-10', 'dd-MON-yy') and to_date('21-APR-10 23:59:59', 'DD-MON-YY hh24:mi:ss');
My questions:
1) Why isn't the index t_indx used in Execution plan 1?To use an index, the indexed column must stand alone as one of the operands. If you had a function-based index on TRUNC (fdate), then it might be used in Query 1, because the left operand of = is TRUNC (fdate).
2) From the execution plan, I see that query 2 & 3 is better than query 1. I do not see any difference between execution plan 2 & 3. Which one is better?That depends on what you mean by "better".
If "better" means faster, you've already shown that one is about as good as the other.
Queries 2 and 3 are doing different things. Assuming the table stays the same, Query 2 may give different results every day, but the results of Query 3 will never change.
For clarity, I prefer:
WHERE fdate >= TRUNC (SYSDATE)
AND fdate < TRUNC (SYSDATE) + 1(or replace SYSDATE with a TO_DATE expression, depending on the requirements).
3) I read somewhere - "Always check the Access Predicates and Filter Predicates of Explain Plan carefully to determine which columns are contributing to a Range Scan and which columns are merely filtering the returned rows. Be sceptical if the same clause is shown in both."
Is that true for Execution plan 2 & 3?
3) Could some one explain what the filter & access predicate mean here?Sorry, I can't.

Is there a way to create forms where certain fields would become required only if there was a certain choice made in a dropdown box in another field?

Is there a way to create forms where certain fields would become required only if there was a certain choice made in a dropdown box in another field?

Yes but you will have to create some custom JavaScript to do this.
Also you should be aware that the "Required" property is only processed when the form is submitted to a scripted web page or "mailto:" process.

Extrapolating data to plot where expected points would be on a graph

Similar Messages

Maybe you are looking for