Workin with int variable

hi,
Wat does this mean.....................
int x='\130';
int y='\u0059';
And what is the significance of enclosing these in ' '.

0x means that's an exadecimal number. Ex: 0x53 = 1010011 = 83
\u means that's an UNICODE character. in java you use:
char c = 'A';
||
char ch = '\u0041'c = ch. as \u0041 stands for A.

Similar Messages

How to get a "char variable" with presentation variable???

I want to pass a char variable with presentation variable, I don't have problems if I pass "int".
For example in answers page I add a column that contains years of my dimension. 2000 until 2012 and prompted my presentation variable "year" (from my dashboard prompt) and when I go to dashboard if I choose in my prompt 2006 in my report appear 2006...any problem and easy. But my problem is if I would pass a char variable, in my prompt also I have months but not numbers else names: January, February, March...and a presentation variable that name is "month". If I do the same report but change column year to month (name) I don't have any results and I have an error.
How can I solucionate this???
Thank you!!

Alex,
Do you have separate columns for Year and Month Name. If Yes, Then why it is so confusing?
1. create a dashboard prompt with month name column
2. Assign it to monthname variable
3. In your report use above variable any where.., but what ever you are doing should be logical and valid to get some data.
In general above approach will work.
You said, "No! I don't want to do a filter with month! I would like to pass this variable, in this example don't make sense but I need to pass a char variable with presentation variable to do another things..."
what does that mean, what you are trying to do with the variable in your report. If you give a example that would be better.
- Madan

Can I use c:out JSTL tag with int values?

I am attempting to c:out an int variable in my JSP using a JSTL core tag. First is it possible to do c:out an int? Second, if it is...can anyone see anything wrong with my code?
This is the error log I am getting:
<Oct 7, 2008 10:20:29 AM MDT> <Error> <HTTP> <BEA-101017> <[ServletContext(id=20
462449,name=rconnect,context-path=/rconnect)] Root cause of ServletException.
javax.servlet.jsp.JspException: ServletException in '/WEB-INF/pages/signup/summa
ry.jsp': An error occurred while evaluating custom action attribute "value" with
value "${orderForm.numOtaModulesSelected}": Unable to find a value for "numOtaM
odulesSelected" in object of class "com.echostar.rconnect.struts.formbeans.Order
FormBean" using operator "." (null)
This is the code:
<c:out value="${orderForm.numOtaModulesSelected}" />where numOtaModulesSelected is defined as a private member variable of the OrderFormBean
I have included the taglib.
Thanks to anyone who can help

Your OrderFormBean class needs to implement a getNumOtaModulesSelected method for that to work. The expression language won't let you get at fields, you need to access it via JavaBeans properties.

Is it only one chance i can initialize array with int [] a={3,2,1}

is it only one chance i can initialize array with int [] a={3,2,1}
===============================
class InitializeArrayTest
     int [] a;     //i need keep a[] global
     public static void main(String args[])throws IOException
               //a=new int[] { 3, 2, 1};//can not complie<========why here is wrong
               a=new int[3];//also can not
               a={3,2,1};     //I want to use {3,2,1} as data for simple test purpose here for other method
}

so if static means only one instance allowed
for what reason there is no compiler error in the
coding below
     static int [] preSort;
     public B(int i)
int []preSort=new int; //<======why no syntax
You are declaring a new local variable called preSort, which has scope to the end of the constructor.

(Another) problem with long variables

I just got an error message that I really didn't expect.
�Operator '&' can not be applied to 'long'�
errrr, help?... Could anyone please tell me if there is another way of doing this (other than writing a function that splits each long variable into two int variables, masks them with '&' and reassembles them back into a long variable)

I just got an error message that I really didn't
expect.
�Operator '&' can not be applied to 'long'�
errrr, help?... Could anyone please tell me if
there is another way of doing this (other than writing
a function that splits each long variable into two int
variables, masks them with '&' and reassembles them
back into a long variable)Have you considered class BigInteger

Substring for Strings, what do I use for a int variable???

Hi!
substring for Strings...
String s1 = p.substring(1,2);
but what do I use for a int variable?
int i1 = integ."???????"(1,2);
/Henrik

why, you use maths of course!!
or if you're not up to that, try this:
int x = 931;
String s = x+"";
String res = s.substring(1, 2);
and of course set it back to an int
with Integer.parseInt(res);

Report Performance with Bind Variable

Getting some very odd behaviour with a report in APEX v 3.2.1.00.10
I have a complex query that takes 5 seconds to return via TOAD, but takes from 5 to 10 minutes in an APEX report.
I've narrowed it down to one particular bind. If I hard code the date in it returns in 6 seconds, but if I let the date be passed in from a parameter it takes 5+ minutes again.
Relevant part of the query (an inline view) is:
,(select rglr_lect lect
,sum(tpm) mtr_tpm
,sum(enrols) mtr_enrols
from ops_dash_meetings_report
where meet_ev_date between to_date(:P35_END_DATE,'DD/MM/YYYY') - 363 and to_date(:P35_END_DATE,'DD/MM/YYYY')
group by rglr_lect) RPV
I've tried replacing the "to_date(:P35_END_DATE,'DD/MM/YYYY') - 363" with another item which is populated with the date required (and verified by checking session state). If I replace the :P35_END_DATE with an actual date the performance is fine again.
The weird thing is that a trace file shows me exactly the same Explain Plan as the TOAD Explain where it runs in 5 seconds.
Another odd thing is that another page in my application has the same inline view and doesn't hit the performance problem.
The trace file did show some control characters (circumflex M) after each line of this report's query where these weren't anywhere else on the trace queries. I wondered if there was some sort of corruption in the source?
No problems due to pagination as the result set is only 31 records and all being displayed.
Really stumped here. Any advice or pointers would be most welcome.
Jon.

Don't worry about the Time column, the cost and cardinality are more important to see whther the CBO is making different decisions for whatever reason.
Remember that the explain plan shows the expected execution plan and a trace shows the actual execution plan. So what you want to do is compare the query with bind variables from an APEX page trace to a trace from TOAD (or sqlplus or whatever). You can do this outside APEX like this...
ALTER SESSION SET EVENTS '10046 trace name context forever, level 1';Enter and run your SQL statement...;
ALTER SESSION SET sql_trace=FALSE;This will create a a trace file in the directory returned by...
SELECT value FROM v$parameter WHERE name = 'user_dump_dest' Which you can use tkprof to format.
I am assuming that your not going over DB links or anything else slightly unusual?
Cheers
Ben

BW 3.5 - Issue with formula variable with replacement path

Dear experts,
I'm facing an issue with formula variable with replacement path.
Just to clarify, I know replacement paths is raising a lot of questions but I've been using this functionnality extensively in the past, both in 7.0 and 3.5, so I'm not looking for basic information about how to use it.
I'm trying to setup a simple report that would show total values per plant of Purchase Order < 100
To do so I've setup a calculated key figure as follow:
VAR1 * ("PO value" < 100 ) * "PO value"
VAR1 is a formula variable with replacement path on 'purchase order' and value attribute 'constant =1'.
(The report has to show values summarized by plant but should not show the detail PO by PO, so I'm not looking at a solution based on condition)
The report as characteristic "plant" in rows and my CKF in columns.
Now let's take an example. I have 3 POs in Plant 1:
PO1 -> 150
PO2 -> 90
PO3 -> 80
Because of the variable with replacement path, the result in my query should be:
plant1 = 170 (even though characteristic "purchase order" is not in my rows, system should evaluate PO one by one and return values only for those two that are below 100).
But the result coming is 320, which is wrong.
I've done the same report on many other 3.5 systems and it worked perfectly, and I am not able to get proper support from SAP OSS who keep saying that this functionnality is not ready in 3.5 (although I've provided screenshot of this working on another 3.5 system!!! how frustrating...)
They have also pointed to problems of Before and After aggregation but that has absolutely no impact. Once again, the scenario is working perfectly on other 3.5 systems with the same query design, so i'm sure it has nothing to do with Query Designer options.
Would anyone have ever come to an equivalenet problem? I'm wondering whether the DB itself could not play a role in the variable with ref characteristic 'constant =1' ...
Any though is welcome!
thanks

Hi,
The text variable is replaced when the exact date is clear for this key figure column according to the restriction.
To achive this, please make sure that either the variable is directly restricted in the key figure selection, or that the date characteristic is in drilldown.
Regards,
Patricia

Problem with application-variables - CFLOCK?

Hi,
i have a problem with my application. It is a multi-user
application with 100 parallel-users and CFMX 7.
The problem wich occures is with application variables. These
are mainly structs wich get filled onApplicationStart(). The
problem is, that the variables suddenly disappear, they are empty.
I have read about CFLock and found out, that it is necesseary
to use cflock. And i found out, that onApplicationStart does
correct locking automatically. That is where i do not understand
the problem. The variables get intialized correctly and in further
they only get read-access. Why can they be corrupted?
My other question about that is, wheather i need cflock for
all Read-Access to Application and Session-Variables, even if there
happens no writing to the variables?
Best Regards,
Andreas

> ?The element of position 2, of dimension 2, of an array
object used as part of
> an expression, cannot be found.?
> The array is in this case the struct.
Well, OK, that could be a problem. Arrays are not structs:
they are two
different things, are not interchangeable, and have
completely different
sets of functions to utilise them. You cannot treat a struct
as an array.
If CF is claiming your "struct" is an array, then it actually
*is* an
array, not a struct.
What's the line of code which is generating that error?
I suppose one could get this error if you have an array of
structs thus:
myArray
.key1
myArray.key2
(etc)
and you're trying to reference it with a numeric key rather
than by key
name, eg:
myArray
[n]
When n is an integer value, rather than a string (which
corresponds to the
name of the key).
> > Have you trapped the error, done a <cfdump>
of the application scope and
> > checked to see if it's the whole lot going awry, or
just some values?
> I have not used cfdump for it, because the server had to
be immediately
> restarted for our customers. But i think, that it is
not completely empty,
> because the index runs to pos2 of dimenstion2.
So does this not happen in your dev / testing environment?
> Will
> onApplicationStart() be called before? Or only if
onRequestStart() returns true?
I would ***-u-me that the application one would be called
before the
request one. It's pretty easy for you to test this though, I
should think?
(Sorry: for reasons beyond the scope of this conversation,
we're still
forced to use Application.cfm in our software, so I've only a
passing
knowledge of how Application.cfc works).
> Here is the code from onRequestStart()
> <cffunction name="onRequestStart"
returntype="boolean">
> <cfargument name="Requestedpage" required="yes" />
> <cfscript>
> var lFile = "/cargorent/Login.cfm";
> var iPosn = ListFindNoCase( lFile,
Arguments.Requestedpage );
> if( iPosn gt 0 )
> return true;
>
> if( NOT IsDefined( "session.user.Loginname" ) or
session.user.Loginname eq
> "" )
> {
> WriteOutput( "<p><p> The current user is no
longer valid, please log in
> again.</p></p>" & chr(10) & chr(13)
> WriteOutput( "<script
language=""javascript"">parent.location = ""
http://"
> & CGI.HTTP_HOST &
"/Login/Login.cfm"";</script>" );
> return false;
> }
>
> return true;
> </cfscript>
> </cffunction>
One thing I will say here is that I really think you should
be separating
your processing from your display. A function should do
processing. it
should pass that processing back to a CFM template which
should handle
whatever needs to be displayed on the browser. Although
that's nowt to do
with your current issue.
Adam

Problem with Bind Variable in 11.2

Hi
I have a slow statement with bind Variables. With literals it works fine. Is there a way to replace the bind by literal in advanced ? I use Release 11.2.0.2.3
Thank you

904062 wrote:
I have a slow statement with bind Variables. With literals it works fine. Is there a way to replace the bind by literal in advanced ? I use Release 11.2.0.2.3This specific scenario is very much an exception to the rule - and you need to back your statement up with execution plans of the SQL with bind variables and with literals, and run stats that show the difference between these two execution plans.
See the {message:id=9360003} from the {forum:id=75} forum's FAQ for details on how to post a SQL performance tuning question.

Query with bind variable, how can use it in managed bean ?

Hi
I create query with bind variable (BindControlTextValue), this query return description of value that i set in BindControlTextValue variable, how can i use this query in managed bean? I need to set this value in String parameter in managed bean.
Thanks

Put the query in a VO and execute it the usual way.
If you need to, you can write a parameterized method in VOImpl that executes the VO query with the parameter and then call that method from the UI (as a methodAction binding) either through the managed bean or via a direct button click on the page.

SLOW report performance with bind variable

Environment: 11.1.0.7.2, Apex 4.01.
I've got a simplified report page where the report runs slowly compared to running the same query in sqldeveloper. The report region is based on a pl/sql function returning a query. If I use a bind variable in the query inside apex it takes 13 seconds to run, and if I hard code a string it takes only a few hundredths of a second. The query returns one row from a table which has 1.6 million rows. Statistics are up-to-date and the columns in the joins and where clause are indexed.
I've run traces using p_trace=YES from Apex for both the bind variable and hard coded strings. They are below.
The sqldeveloper explain plan is identical to the bind variable plan from the trace, yet the query runs in 0.0x seconds in sqldeveloper.
What is it about bind variable syntax in Apex that is causing the bad execution plan? Apex Bug? 11g bug? Ideas?
tkprof output from Apex trace with bind variable is below...
select p.master_id link, p.first_name||' '||p.middle_name||' '||p.last_name||' '||p.suffix personname,
p.gender||' '||p.date_of_birth g_dob, p.master_id||'*****'||substr(p.ssn,-4) ssn, p.status status
from persons p
where
   p.person_id in (select ps.person_id from person_systems ps where ps.source_key like LTRIM(RTRIM(:P71_SEARCH_SOURCE1)))
order by 1
call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.01          0          1         27           0
Fetch        2     13.15      13.22      67694      72865          0           1
total        4     13.15      13.23      67694      72866         27           1
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 62 (ODPS_PRIVACYVAULT)   (recursive depth: 1)
Rows     Row Source Operation
      1 SORT ORDER BY (cr=72869 pr=67694 pw=0 time=0 us cost=29615 size=14255040 card=178188)
      1   FILTER (cr=72869 pr=67694 pw=0 time=0 us)
      1    HASH JOIN RIGHT SEMI (cr=72865 pr=67694 pw=0 time=0 us cost=26308 size=14255040 card=178188)
      1     INDEX FAST FULL SCAN IDX$$_0A300001 (cr=18545 pr=13379 pw=0 time=0 us cost=4993 size=2937776 card=183611)(object id 68485)
1696485     TABLE ACCESS FULL PERSONS (cr=54320 pr=54315 pw=0 time=21965 us cost=14958 size=108575040 card=1696485)
Rows     Execution Plan
      0 SELECT STATEMENT   MODE: ALL_ROWS
      1   SORT (ORDER BY)
      1    FILTER
      1     HASH JOIN (RIGHT SEMI)
      1      INDEX   MODE: ANALYZED (FAST FULL SCAN) OF
                 'IDX$$_0A300001' (INDEX)
1696485      TABLE ACCESS   MODE: ANALYZED (FULL) OF 'PERSONS' (TABLE)
Elapsed times include waiting on following events:
Event waited on                             Times   Max. Wait Total Waited
----------------------------------------   Waited ---------- ------------
db file scattered read                       1276        0.00          0.16
db file sequential read                       812        0.00          0.02
direct path read                             1552        0.00          0.61
********************************************************************************Here's the tkprof output with a hard coded string:
select p.master_id link, p.first_name||' '||p.middle_name||' '||p.last_name||' '||p.suffix personname,
p.gender||' '||p.date_of_birth g_dob, p.master_id||'*****'||substr(p.ssn,-4) ssn, p.status status
from persons p
where
   p.person_id in (select ps.person_id from person_systems ps where ps.source_key like LTRIM(RTRIM('0b')))
order by 1
call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.02       0.04          0          0          0           0
Execute      1      0.00       0.00          0          0         13           0
Fetch        2      0.00       0.00          0          8          0           1
total        4      0.02       0.04          0          8         13           1
Misses in library cache during parse: 1
Optimizer mode: ALL_ROWS
Parsing user id: 62 (ODPS_PRIVACYVAULT)   (recursive depth: 1)
Rows     Row Source Operation
      1 SORT ORDER BY (cr=10 pr=0 pw=0 time=0 us cost=9 size=80 card=1)
      1   FILTER (cr=10 pr=0 pw=0 time=0 us)
      1    NESTED LOOPS (cr=8 pr=0 pw=0 time=0 us)
      1     NESTED LOOPS (cr=7 pr=0 pw=0 time=0 us cost=8 size=80 card=1)
      1      SORT UNIQUE (cr=4 pr=0 pw=0 time=0 us cost=5 size=16 card=1)
      1       TABLE ACCESS BY INDEX ROWID PERSON_SYSTEMS (cr=4 pr=0 pw=0 time=0 us cost=5 size=16 card=1)
      1        INDEX RANGE SCAN IDX_PERSON_SYSTEMS_SOURCE_KEY (cr=3 pr=0 pw=0 time=0 us cost=3 size=0 card=1)(object id 68561)
      1      INDEX UNIQUE SCAN PK_PERSONS (cr=3 pr=0 pw=0 time=0 us cost=1 size=0 card=1)(object id 68506)
      1     TABLE ACCESS BY INDEX ROWID PERSONS (cr=1 pr=0 pw=0 time=0 us cost=2 size=64 card=1)
Rows     Execution Plan
      0 SELECT STATEMENT   MODE: ALL_ROWS
      1   SORT (ORDER BY)
      1    FILTER
      1     NESTED LOOPS
      1      NESTED LOOPS
      1       SORT (UNIQUE)
      1        TABLE ACCESS   MODE: ANALYZED (BY INDEX ROWID) OF
                   'PERSON_SYSTEMS' (TABLE)
      1         INDEX   MODE: ANALYZED (RANGE SCAN) OF
                    'IDX_PERSON_SYSTEMS_SOURCE_KEY' (INDEX)
      1       INDEX   MODE: ANALYZED (UNIQUE SCAN) OF 'PK_PERSONS'
                  (INDEX (UNIQUE))
      1      TABLE ACCESS   MODE: ANALYZED (BY INDEX ROWID) OF
                 'PERSONS' (TABLE)

Patrick, interesting insight. Thank you.
The optimizer must be peeking at my bind variables with it's eyes closed. I'm the only one testing and I've never passed %anything as a bind value. :)
Here's what I've learned since my last post:
I don't think that sqldeveloper is actually using the explain plan it says it is. When I run explain plan in sqldeveloper (with a bind variable) it shows me the exact same plan as Apex with a bind variable. However, when I run autotrace in sqldeveloper, it takes a path that matches the hard coded values, and returns results in half a second. That autotrace run is consistent with actually running the query outside of autotrace. So, I think either sqldeveloper isn't really using bind variables, OR it is using them in some other way that Apex does not, or maybe optimizer peeking works in sqldeveloper?
Using optimizer hints to tweak the plan helps. I've tried both /*+ FIRST_ROWS */ and /*+ index(ps pk_persons) */ and both drop the query to about a second. However, I'm loath to use hints because of the very dynamic nature of the query (and Tom Kyte doesn't like them either). The hints may end up hurting other variations on the query.
I also tested the query by wrapping it in a select count(1) from ([long query]) and testing the performance in sqldeveloper and in Apex. The performance in that case is identical with both bind variables and hard coded variables for both Apex and SqlDeveloper. That to me was very interesting and I went so far as to set up two bind variable report regions on the same page. One region wrapped the long query with select count(1) from (...) and the other didn't. The wrapped query ran in 0.01 seconds, the unwrapped took 15ish seconds with no other optimizations. Very strange.
To get performance up to acceptable levels I have changed my function returning query to:
1) Set the equality operator to "=" for values without wildcards and "like" for user input with wildcards. This makes a HUGE difference IF no wildcard is used.
2) Insert a /*+ FIRST_ROWS */ hint when users chose the column that requires the sub-query. This obviously changes the optimizer's plan and improves query speed from 15 seconds to 1.5 seconds even with wildcards.
I will NOT be hard coding any user supplied values in the query string. As you can probably tell by the query, this is an application where sql injection would be very bad.
Jeff, regarding your question about "like '%' || :P71_SEARCH_SOURCE1 || '%'". I've found that putting wildcards around values, particularly at the beginning will negate any indexing on the column in question and slows performance even more.
I'm still left wondering if there isn't something in Apex that is breaking the optimizer "peeking" that Patrick describes. Perhaps something in the way it switches contexts from apex_public_user to the workspace schema?

LOV(af:selectOneChoice) with bind variable in af:table

Hi All,
I have a table where a column is defined as dropdown(af:selectOneChoice). The query for selectOneChoice has a bind variable which needs to be set as a value from the base view Object corresponding row.
Suppose a table Employee
EmpId EmpName EmpType Authorization
101 John Temp No
The above table is created as af:table and 'Authorization' is implemented as dropdown(af:selectOneChoice) . The selectOneChoice has a query(AuthorizationLovVVO) with bind variable . For each row of af:table(EmployeeVO) , af:selectOneChoice query(AuthorizationLovVVO) requires
the corresponding row(EmployeeVO) 'EmpType' to be set as value of bind variable.
Can you please suggest how can we achieve this functionality.
Edited by: 907302 on Oct 17, 2012 7:22 AM
Edited by: 907302 on Oct 17, 2012 7:22 AM

I have checked the following post where it has been suggested to access the the current row value as groovy expression.
groovy for bind variable
Suppose my AM name is 'TestAM' , i have tried the below expressions for value of bind variable but it does not work :
1) adf.object.TestAM.findViewObject('EmployeeVO1').currentRow.EmpType
2) adf.object.TestAMDataControl.findViewObject('EmployeeVO1').currentRow.EmpType
None of the above expressions work and i get the error while running the page as 'Variable NotesAM is not recognized.' / 'Variable NotesAMDataControl is not recognized.' .
Can you please suggest if we can achieve the functionality using this approach . Also let me know if i am missing something in the above expression.

ADF Groovy Expression with bind variable and ResourceBundle

Now I have ViewObject which have WHERE clause with bind variable.
This bind variable is for language. Within bind variable I can change Value Type to Expression and into Value: I put +(ResourceBundle.getBundle("model.ModelBundle")).getString("language")+.
Now if I run Oracle Business Component Browser (on AppModule) this works. In my ModelBundle.properties there is language=1 name-value pair. And with different locale I have different language number.
Now if I put that ViewObject on one JSF, this bind variable expression does not work any more. Error:
*oracle.jbo.JboException: JBO-29000: Unexpected exception caught: java.util.MissingResourceException, msg=Can't find bundle for base name model.ModelBundle, locale my_locale*
Any ideas?
10x
Zmeda

The most wierd thing is that, if I make ViewObjectImpl and insert this method
public String getLanguage() {
return (ResourceBundle.getBundle("model.ModelBundle")).getString("language");
and call it in Bind Variable Expression Value: viewObject.getLanguage()
IT WORKS!
But why with groovy expression it does not work?
Zmeda

How to querie with bind variable in findMode?

Hallo,
is it possible to use a querie with bind variable in findMode? And when how is it possible to initialize the bind variable?
Any help is appreciated.

Hi,
bind variables can be linked from teh ADF binding to e.g. a managed bean, the sessionScope or other binding attributes via EL. So when you go into findMode and execute the query, the EL will grab the bindVariable values automatically.
Frank

Workin with int variable

Similar Messages

Maybe you are looking for