Column level stats

Hi,
Version 11.2.0.1
I am asked to do column level stats on a table which is not a partartition table.
I68-SQL> desc wmgr.re_service_hist
Name Null? Type
JOB_ID NOT NULL NUMBER(10)
OPTION_ID NOT NULL NUMBER(10)
OPTION_NAME NOT NULL VARCHAR2(50 CHAR)
OPTION_VALUE NOT NULL VARCHAR2(4000 CHAR)
VALUE_ORDER NOT NULL NUMBER(38)
Usually we do table level stats.what is use of column level stats over table level stats?
when to do column level stats?How to do it?
Thanks

Check these Examples please
http://hemantoracledba.blogspot.com/2009/11/sample-sizes-table-level-and-column.html

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How to lock the statistics in column level.

Hi All, i am using 10.2.0.1.0 version of oracle.
I have gathered freuency histogram manually on one of my column of a table to provide more information to optimizer for better calculation of cardinality.
Now i have my weekend job runs for gathering stats on schema level with method_opt as 'For all column size repeat'. But i dont want the stats of above column to be overridden by the stats job. I dont want to lock the statistics of whole table, but i just want to lock the column level stats for this table.
how the above can be achieved?
Below is the details.
Code for manual histogram , i have eliminated many buckets purposely, as there are 194 buckets.
DECLARE
m_distcnt NUMBER := 916714;       -- num_distinct (As it is there in dba_tab_columns)
m_density NUMBER := 0.00000109031397771616; -- density (As it is there in dba_tab_columns)
m_nullcnt NUMBER := 0;       -- num_nulls (As it is there in dba_tab_columns)
m_avgclen NUMBER := 8;       -- avg_col_len (As it is there in dba_tab_columns)
srec      dbms_stats.statrec;
n_array   dbms_stats.numarray;
BEGIN
srec.epc := 3; -- no of end points
n_array     := dbms_stats.numarray(3870     ,
                                             3891     ,
                                             3945
srec.bkvals := dbms_stats.numarray(25000     ,
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distcnt => m_distcnt,
density => m_density,
nullcnt => m_nullcnt,
srec    => srec,
avgclen => m_avgclen,
force => TRUE);
END;
-- Weekend job which will override above histogram
DBMS_STATS.GATHER_SCHEMA_STATS (
    ownname          => 'Schema1',
    estimate_percent => dbms_stats.auto_sample_size,
    block_sample     => FALSE,
    method_opt       => 'FOR ALL COLUMNS SIZE REPEAT',
    DEGREE           => dbms_stats.default_degree,
    granularity      => 'DEFAULT',
    CASCADE          => TRUE,
    options          => 'GATHER STALE'
Edited by: 930254 on Jul 4, 2012 9:08 AM

Pl do not post duplicate threads - How to lock the statistics in column level.

Column Level Security - Grand Total row

Hello All, I have a question about Column Level Security in a report where Grand Total is turned on. I am working inside of the OOTB Paint rpd and I am looking at the 'Finish Sales Trend for Current Year' report on the Brand Analysis dashboard page. Inside of the Admin Tool I added column level security on the Units presentation column in the Sales Measures table. I implemented security that will not allow the Central Region Manager group to view the Units column. When I access the report I noticed that the Grand Total row of the table is slightly skewed because the Units column is hidden. The Grand Total row is showing, however all the results are off by 1 cell.
The forum is not allowing me to attach pictures to this post.
Thanks for your help

Hi User,
It is an bug refer the metalink,
Bug.9576412 - GRAND TOTAL NOT WORKING WHEN COLUMN LEVEL SECURITY IS IMPLEMENTED
For eg:
consieder a report with following columns,
Year Product Measure1 Measure2
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So that it is happening.
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Thanks,
Vino

Column Level Security Using VPD under oracle 11g

Hi
I am using an example from Oracle Database 10g: Advance Security -- Virtual Private Databases
1. The Application Context -- that sets the session environment for the use is ok.
2. The Logon Trigger that executes the above is ok. It had been tested.
3. The Security Policy that returns a predicate after checking the output of the Application Context is ok.
4. The security policy applied to the STOCK_TRX table is ok.
5. Select and Insert from the database work.
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begin
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end;
Note:
PRICE is the sec_relevant_cols
STOCK_TRX is the table
Can you please help.
Thx

The syntax for row level security is not the same for columns level security. All the parameters to the DBMS_RLS.ADD_Policy() function should be preceded by the type of the parameter for:
begin
DBMS_RLS.ADD_POLICy(object_schema=>PRACTICE, ... sec_relevant_cols=>'PRICE);
end;
I did not know this before. I thought they were there in the example for explanatory reasons. I decided to answer the question for myself because I know others have the same interpretation.

Column level filter at RPD level - OBIEE 11g

Hi all,
How do i add a filter at the column level in logical layer for one of the metric , it has the following calculation
case when id in (1,2,3,4,5,5) and category='AS' then case when points=10 or points=9 then 1 else 0 end end
I want the metric to reused for other id's as well... so i want to put case when id in (1,2,3,4,5,5) in filter of the column. how do i achieve it? plz help
Thanks,
Lona

Your question is not clear, I assume you want points to be reused for other ids, so try this
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end
else points
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if helps mark
~ http://cool-bi.com

How to apply 'disableColumnReordering="true"' at column level.

Hi Experts,
I am using jdev 11.1.1.5.0.
I have a requirement, not to move(drag) the column within a table. I got succeeded to apply this on table level so that all columns are fixed, but not able to fix it at column level.
So, is there any way or a property to fix this at column level.?
Please help out me.
Thanks & Regards,
Bittu..!

Hi
You can use at column level frozen="true" but this will not disable reordering. This specifies whether the column is frozen. In the table columns until the frozen column are locked with the header and not scrolled with the rest of the columns. Frozen attribute is honored only on the top level column,since it is not possible to freeze a child column by itself without its parent being frozen
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Column level access in Crystal Report Server

Hi,I have three fields in my Crystal Report. The crystal report will be exported to PDF by my customised web application. The application has a built in user security and access control model. However if user 1 logs in he should see all the 3 columns(database fields) on the exported PDF. If user 2 logs in he should see only first 2 columns as he has access to only those. We would also be using Crystal Report Server.I know this could be done in Crystal Report itself but is there any way to leverage column level access (and also row level) functionality using Crystal Report Server. The Crystal Report reports off an ODBC Datasource.It would be great if any one could help me in this regard. Cheers.  

If you were running the same version designer and server, you could open your reports straight from the repository, and save them straight back. Then you wouldnt have multiple versions of RPTs flying about.
I have just purchased a new licence for 2008 and an 2008 upgrade for a Xr2.
I don't think I completely understand, but we do have Crystal Reports 2008 and Crystal Reports Server 2008 available for purchase.

Grand Total not displaying correctly on Column level security.

Hi All,
I have implemented the Column level security for three columns. But in dashboard report. The grand total is not displaying correctly. The grand total values are still displayed for the hidden columns.
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The sample how my report looks like after column level security is.
ColumnA Metric1 Metric2 Metrics3(to be hidden)
A 100 200
B 150 100
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Regards,
Bhavik

Any pointers please.

In SharePoint Calendar lists, fields [Start Time] and [End Time] do not exist at the Site Column level.

<header style="box-sizing:border-box;color:#777777;line-height:1;font-size:13px;padding-right:46px;margin-bottom:3px;font-family:'Helvetica Neue', arial, sans-serif;">
</header>
I'm doing SP app development and have the following problem.
I need to check Start time and End Time in SharePoint Calendar using CAML query and then add a new event to Calendar list using the Start time and End Time that user has entered in 2 datapickers
in the form.
function AddCalendarListItems() {
var SD = document.getElementById("datepicker1").value;
var SThh = document.getElementById("St1").value;
var STmm = document.getElementById("St2").value;
var ED = document.getElementById("datepicker2").value;
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var ETmm = document.getElementById("Et2").value;
var T = document.getElementById("Title").value;
var S1 = SThh;
SD = SD.slice(6, 10) + "-" + SD.slice(0, 2) + "-" + SD.slice(3, 5) + "T" + SThh + STmm + ":00Z";
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clientContext.executeQueryAsync(Function.createDelegate(this, this.onQueryAddCalendarSucceeded2), Function.createDelegate(this, this.onQueryAddCalendarFailed2));
function onQueryAddCalendarSucceeded2(sender, args) {
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But I receive the following error:
Add new item to the Calendar failed. Column 'Start time' does not exist. It may have been deleted by another user.
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Hi Khojasteh,
Use “EventDate” for Start Time field, and “EndDate” for End Time field. They are the internal name of the two fields, you can check it in the column settings page url like “Field=EndDate”.
If it isn’t the issue, please debug the code, in which line the error occurs.
Thanks,
Qiao
Forum Support
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Rank on column-level Grand total column in pivot table - Need help

Hi ,
I have developed the report, which is having a pivot view. In pivot view i have a column level grand total. I need to apply the rank for the grand total column..
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Kishore

MAY BE IT IS NOT POSSIBLE IN PIVOT VIEW< AS WE DONT HAVE FORMULA EDIT OPTION FOR COLUMNS IN PIVOT VIEW.......
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Row and Column Level Select Permission

Hello Friends,
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2.Column Level Select Permission?
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http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14258/d_rls.htm#sthref6168
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Justin

Possible to emulate union all at column level?

The UNION ALL function of Oracle SQL is great for joining two matching results sets into one.
However, is it possible to use a similar approach to do this at column level?
EG:
The following query:
<pre>
select
cods.salesman, sum(cods.net_amount) ordval
from
ifsapp.cust_ord_back_stat cods
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<pre>
salesman ordval
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Then take the following:
<pre>
select
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from
ifsapp.cust_ord_back_stat cods
where
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</pre>
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<pre>
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</pre>
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<pre>
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</pre>
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Thanks

Apologies on formatting error. Resolved in some respects!
The UNION ALL function of Oracle SQL is great for joining two matching results sets into one.
However, is it possible to use a similar approach to do this at column level?
EG:
The following query:
select
cods.salesman, sum(cods.net_amount) ordval
from
ifsapp.cust_ord_back_stat cods
where
to_char(cods.statistic_date,'YYYYMMDD') = '20060314'
group by cods.salesmanwill produce details like:
salesman ordval
ARNOTT 100
JONES 15
SMITH 300Showing the balance of orders for each on the 14 March 2006.
Then take the following:
select
cods.salesman, sum(cods.net_amount) ordval
from
ifsapp.cust_ord_back_stat cods
where
to_char(cods.statistic_date,'YYYYMMDD') = '20060315'
group by cods.salesmanwill produce details like:
salesman ordval
ARNOTT 120
JONES 5
THOMAS 10Showing the balance of orders for each on the 15 March 2006.
What I want to show is:
salesman ordval1 ordval2 diff
ARNOTT 100 120 20
JONES 15 5 10-
SMITH 300 0 300-
THOMAS 0 10 10It seems quite complicated when I think of subqueries etc
Thanks

Unable to fetch columns; Invalid state/No Suitable Driver

Hi!
I'm trying to populate a combo box with data from a MySQL database (or any other database for that matter), I create a JDBC connection source, and set the following:
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Driver = org.mysql.jdbc.Driver (i have also tried org.gjt.mm.mysql.Driver)
Username = anonymous
Password = <blank>
Next I create a NBJdbcRowSet and set:
Command = SELECT * FROM foo
Connection Provider = connectionSource1 (the above connection source)
Now if I click the elipses next to Default Column Values, I get the message 'Unable to fetch columns; Invalid State'
If I replace the NBJDBCRowSet with a NBCachedRowSet, the error becomes 'Unable to fetch columns; No Suitable Driver'.
The database is browseable in the runtime tab, and the table exists (I can run SQL queries and get the expected results). The anonymous account exists and has access to the tables in question (the same setup is used in a few different applications, all of which work fine). Using the root account gives the same results. Using the PointBase example database gives the same results:
Driver: com.pointbase.jdbc.jdbcUniversalDriver
URL: jdbc:pointbase:server://localhost:9092/sample
Details of setup:
OS: Windows XP Pro SP2
IDE: Sun Java Studio Enterprise 7 2004Q4
Java version in use: 1.4.2_05 (as packaged with the studio)
MySQL: v5.0.7-beta-nt
Connector: MySQL Connector/J 3.0.17-ga
PointBase: As came with Studio Enterprise
I should mention that I can get DB connectivity in my app, I can create a comboBox and set the model to 'nBCachedRowSet1: name' and the contents of that field appears in my comboBox, however I need to create about a dozen tables and I don't relish the thought of manually creating models for each one ;)
Any suggestions are appreciated!
Cheers!
Darren

Hi Thanks for your reply.
I've retried with PointBase and the Sample DB:
* New project. New JFrame.
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- URL: jdbc:pointbase:server://localhost:9092/sample
- Username/pass: as per PointBase setup
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So this is where I get the problem, I'm not sure if i've buggered it up though, so I continue to see if I can get data:
- Add Column: NAME
- OK, Close
* Config ComboBox
- Open Model dialog
- Select Mode: ComboBoxEditor
- RowSet: nBJdbcRowSet1 (this throws the error again)
- Column: NAME (entered manually, dropdown is empty)
- OK, Close
* Run app
Errors!
Seems like the GUI builder did something wrong - it generated a bunch of functions for each thing i added, like this:
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this.jComboBox1 = val;
and the project won't compile. I figure out it should be like this:
public void setJComboBox1(javax.swing.JComboBox val) {
this.jComboBox1 = val;
but the functions aren't doing anything anyway, so I delete them all. I'm starting to think my installation is borked.
Project now compiles and runs, but there's no data, and I get:
ClassNotFoundException: com.pointbase.jdbc.jdbcUniversalDriver
At this point i should probably find the jar with that driver in it and mount this/add it to the classpath, but the boss has decided we'll use Borland Delphi 2005 .NET anyways, so I won't take this any further...
Thanks for your help guys!
Darren

Q : Using column level VPD policies with Oracle Jdeveloper ADF BC ?

For one of our big customer, we already successfully developped a new java application using Oracle Jdeveloper with ADF, ADF BC and the Virtual Private Database (VPD) with row level policies.
Our customer has new business requirements that could be fullfilled using column level VPD policies.
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Is it a viable solution and if not, why ?
Thanks in advance.
Rémy

Tomas,
my 2 cent:
if you know how to get the info from the db during run time you should be able to overwrite the frameworks message bundle look to get the description from the db instead of from the resource bundle.
Or you load all descriptions from the db into a resource bundle and use the keys in the tooltip directly.
Timo

Oracle Virtual Private Database (VPD), Column Level Security

Hello,
About Oracle Virtual Private Database (VPD), is it possible to set a Column Level Security without setting a Row Level Security (without using any predicate)?
Thanks,
Herve.

Thanks, Zoran.
A colleague shared with me a link containing a function without returning a predicate (in using SYS_CONTEXT function to skip row restriction).
Herve.
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Column level stats

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