Change display of result set from 'showing data as rows, to showing data as one or more columns'

Hi Everyone,
I am interested in changing the way that data is displayed in my result set.
Essentially I want to display a selection of rows (1 to n) as columns, the following diagram explains my intentions -
Perhaps one of the greatest challenges here is the fact that I do not have a concrete number of rows (or BIN numbers).
Each stock item could be stored in one or more BINS, which I will not know until running my query.
Any suggestions here will be greatly appreciated.
Kind Regards,
David

Can you explain on what basis you select those BinLabels? There're lots of other labels also available on your sample data so whats the rule which determines which all BinLabels should be selected?
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs
Agree with Visakh16's opinion. In addition, it might be helpful if you can post your DDL here.
Regards,
Elvis Long
TechNet Community Support

Similar Messages

Need help in restricting a result set from a UNION in MERGE

Hello,
Would really appreciate if anybody could help me out with the issue I am facing with the below statements (I am new to Oracle ):
merge into table_name_1 p
using
select p_key, value_1, value_2
from some_tables
UNION
select p_key, value_1, value_2
from some_tables
UNION
)t
on (p.p_key = t.p_key)
when matched then
update table_name_1 with value_1 and value_2
when not matched then
insert table_name_1 with p_key, value_1, value_2;
Now, the union of all those selects gives me distinct values and it works most of the times but when I get values like below, the merge fails:
p_key-----value_1-----value_2
100-----25-----50
100-----NULL-----50
I browsed the net and understood the reason behind this: the result set becomes ambiguous and merge doesn't know which row to insert first and which one to update.
Now, my requirement is: I could have any of the below scenario/result sets from the union and I need only 1 row per p_key -
result_set_1
p_key-----value_1-----value_2
100-----25-----50 ***************need this row
100-----NULL-----50
100-----NULL-----NULL
result_set_2
p_key-----value_1-----value_2
100-----25-----NULL ***************need this row
100-----NULL-----NULL
result_set_3
p_key-----value_1-----value_2
100-----25-----NULL ***************need this row (p_key = 100)
100-----NULL-----NULL
200-----NULL-----75 ***************need this row (p_key = 200)
200-----NULL-----NULL
300-----90-----95 ***************need this row (p_key = 300)
So, I basically need a way to restrict the values that I will get from the UNION of all those selects to fit the requirement above, hope I was able to explain the issue I am facing.
Any help would be greatly appreciated.
Thanks,
Dpunk

In all cases the goal is to find an order by value that will make the row you want be first.
The query I gave is calculating a priority for each row by adding up values showing whether each column is null or not null. The case statements check whether each column is null and need to be added up to give a total priority value.
Value_1   Value_2   Priority
Not Null Not Null 2 + 1 = 3
Not Null Null      2 + 0 = 2
Null      Not Null 0 + 1 = 1
Null      Null      0 + 0 = 0
The priority value ends up being a bitmap showing whether each value is null or not null. I think that reflects my mathematics background.
Another way of getting the same result (suggested to me by your asking why it needs the "+") would be to use two CASE expressions as separate order by items:
select p_key, value_1, value_2 from
(select p_key, value_1, value_2, row_number() over
          (partition by p_key
           order by case when value_1 is null then 0 else 1 end DESC,
                    case when value_2 is null then 0 else 1 end DESC
          ) as rn
from (your UNION query here)
where rn = 1
A third way is to use a more complex case statement:
select p_key, value_1, value_2 from
(select p_key, value_1, value_2, row_number() over
          (partition by p_key
           order by case when value_1 is NOT null and value_2 is NOT null then 1
                         when value_1 is NOT null and value_2 is     null then 2
                         when value_1 is     null and value_2 is NOT null then 3
                         when value_1 is     null and value_2 is     null then 4
                     end ASC
          ) as rn
from (your UNION query here)
where rn = 1

Performance to fetch result set from stored procedure.

I read some of related threads, but couldn't find any good suggestions about the performance issue to fetch the result set from a stored procedure.
Here is my case:
I have a stored procedure which will return 2,030,000 rows. When I run the select part only in the dbartisan, it takes about 3 minutes, so I know it's not query problem. But when I call the stored procedure in DBArtisan in following way:
declare cr SYS_REFCURSOR;
firstname char(20);
lastname char(20);
street char(40);
city char(20);
STATE varchar2(2);
begin DISPLAY_ADDRESS(cr);
DBMS_OUTPUT.ENABLE(null);
LOOP
FETCH cr INTO firstname,lastname,street, city, state;
EXIT WHEN cr%NOTFOUND;
DBMS_OUTPUT.PUT_LINE( firstname||','|| lastname||','|| street||',' ||city||',' ||STATE);
END LOOP;
CLOSE cr;
end;
It will take about 100 minutes. When I used DBI fetchrow_array in perl code, it took about same amount of time. However, same stored procedure in sybase without using cursor, and same perl code, it only takes 12 minutes to display all results. We assume oracle has better performance. So what could be the problem here?
The perl code:
my $dbh = DBI->connect($databaseserver, $dbuser, $dbpassword,
{ 'AutoCommit' => 0,'RaiseError' => 1, 'PrintError' => 0 })
or die "couldn't connect to database: " . DBI->errstr;
open OUTPUTFILE, ">$temp_output_path";
my $rc;
my $sql="BEGIN DISPLAY_ADDRESS(:rc); END;";
my $sth = $dbh->prepare($sql) or die "Couldn't prepare statement: " . $dbh->errstr;
$sth->bind_param_inout(':rc', \$rc, 0, { ora_type=> ORA_RSET });
$sth->execute() or die "Couldn't execute statement: " . $sth->errstr;
while($address_info=$rc->fetchrow_arrayref()){
my ($firstname, $lastname, $street, $city, $STATE) = @$address_info;
print OUTPUTFILE $firstname."|".$lastname."|".$street."|".$city."|".$STATE;
$dbh->commit();
$dbh->disconnect();
close OUTPUTFILE;
Thanks!
rulin

Thanks for you reply!
1) The stored procedure has head
CREATE OR REPLACE PROCEDURE X_OWNER.DISPLAY_ADDRESS
cv_1 IN OUT SYS_REFCURSOR
AS
err_msg VARCHAR2(100);
BEGIN
--Adaptive Server has expanded all '*' elements in the following statement
OPEN cv_1 FOR
Select ...
commit;
EXCEPTION
WHEN OTHERS THEN
err_msg := SQLERRM;
dbms_output.put_line (err_msg);
ROLLBACK;
END;
If I only run select .. in DBArtisan, it display all 2030,000 rows in 3:44 minutes
2) But when call stored procedure, it will take 80-100 minutes .
3) The stored procedure is translated from sybase using migration tools, it's very simple, in sybase it just
CREATE PROCEDURE X_OWNER.DISPLAY_ADDRESS
AS
BEGIN
select ..
The select part is exact same.
4) The perl code is almost exact same, except the query sql:
sybase verson: my $sql ="exec DISPLAY_ADDRESS";
and no need bind the cursor parameter.
This is batch job, we create a file with all information, and ftp to clients everynight.
Thanks!
Rulin

JDBC Result Set from Non-Database Source

In Java, is it possible to create a result set from a non-database data source?, for example an XML file, text file, vectors, java beans
We have a Swing application that currently makes direct JDBC calls to the DB2 database for creating result sets. We want to replace JDBC calls with calls to web service, but want to still create result sets on the client, so the replacement of the datasource from database to web service call is transparent to the rest of the code.

In Java, is it possible to create a result set from a
non-database data source?, Yes.
for example an XML file,
text file, vectors, java beans
We have a Swing application that currently makes
direct JDBC calls to the DB2 database for creating
result sets. We want to replace JDBC calls with calls
to web service, but want to still create result sets
on the client, so the replacement of the datasource
from database to web service call is transparent to
the rest of the code.You might want to think carefully about what you are doing.
It is fairly easy, although somewhat tedious (many methods,) to create a new type of ResultSet.
But if the above application is doing SQL via statements and expecting the result via a ResultSet then you are not just creating a ResultSet but an entire driver and one that will have to deal with SQL as well. And if you have to handle the SQL itself that means you will probably need a parser and interpreter.

It is required to get the result set from the last query.

I need this SP to return the result set from the last query.
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
alter proc spQ_GetASCBillingRateIDs2
@ScheduleID CHAR(15),
@startdate smalldatetime,
@enddate smalldatetime
as
set nocount on
truncate table tbltmpgroup
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[tbltmptbltest]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[tbltmptbltest]
exec sp_CreateTblTmpGroup
insert into tbltmpgroup
SELECT DISTINCT
case when pd.billparent = 'N' then org.eligibleorgid
else isnull(af.parentid, org.eligibleorgid) end as billorgid,
pd.individualbill , pd.cobrabill, pd.billparent,
org.eligibleorgid, org.polid, org.orgpolicyid,
pp.planid, pp.rateid,
ps.ascinvoicedate,
case when ps.ascclaimfromdate > @startdate then ps.ascclaimfromdate
else @startdate end as premiumrundayFrom,
case when ps.ascclaimtodate < @enddate then ps.ascclaimtodate
else @enddate end as premiumrundayTo,
fts.effdate, fts.termdate,
case when fts.effdate > @startdate then fts.EffDate
else @startdate end as ascStartDate,
case when fts.termdate < @enddate then fts.termdate
else @enddate end as ascEndDate
FROM premiumschedule ps (nolock)
inner join orgpolicy org (nolock)
on org.ascinvoicerungroup between ps.premiumrundayfrom and ps.premiumrundayto
inner join FundingTypeStatus fts
on fts.orgpolicyid = org.orgpolicyid
and fts.fundtype = 'ASC'
and ((fts.effdate between @startdate and @enddate)
or (fts.termdate between @startdate and @enddate)
or (fts.effdate < @startdate and fts.termdate > @enddate))
inner join eligibilityorg o (nolock)
on org.eligibleorgid = o.eligibleorgid
inner join policydef pd (nolock)
on pd.polid = org.polid
inner join policyplans pp (nolock)
on pp.polid = org.polid
inner join program p (nolock)
on pd.programid = p.programid
left join orgaffiliation af with (nolock)
on org.eligibleorgid = af.childid
WHERE ps.premiumscheduleid = @ScheduleID
AND org.orgpolicyid <> ''
go
SELECT DISTINCT z.rateid, e.enrollid, z.ascstartdate, z.ascenddate
into tbltmptbltest FROM enrollment E (nolock)
inner join tbltmpgroup z
on e.rateid = z.rateid
go
CREATE UNIQUE CLUSTERED INDEX IDXTempTable ON tbltmptbltest(enrollid)
create index IDXTemptableDates on tbltmptbltest(ascstartdate,ascenddate)
go
select distinct t.*
from tbltmpgroup t
where rateid in (
select distinct t.rateid from VW_ASC_Billing)
order by billorgid
set nocount off
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO

Please post DDL, so that people do not have to guess what the keys, constraints, Declarative Referential Integrity, data types, etc. in your schema are. Learn how to follow ISO-11179 data element naming conventions and formatting rules (you have no idea).
Temporal data should use ISO-8601 formats. Code should be in Standard SQL as much as possible and not local dialect.
What you did post is bad SQL.
The prefix “tbl-” is a design flaw called tibbling and we do not do it. We seldom use temp tables in RDBMS; it is how magnetic tape file programmers fake scratch tapes.
If the schema is correct, then SELECT DISTINCT is almost never used.
Your “bill_parent” looks like a assembly language bit flag; we never use those flags in SQL.
“Funding_Type_Status” is an absurd name for a table. A status is a state of being, not an entity. A type is an attribute property. So this table ought to be column that is either a “funding_type” or “funding_status” (with the time period for the state of being
shown in other columns). But this hybrid is not possible in a valid data model.
Want to try again, with DDL and some specs?
--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
in Sets / Trees and Hierarchies in SQL

How to export result set from mysql query browser to .sql in oracle

Hi folks:
I was trying to export result set from MySql query browser to Oracle. I could able to do
File->Export Result Set-> Excel format...
What I am trying to get is .sql file so that I can run it as a script in my oracle db. Is there any way we can get .sql file with inserts and delimeters ....?
Did you guys get my question.?
Please throw some light on this....
Could be very appreciable ....
Thanks
Sudhir Naidu

Hi
Create a sql statement which generates the insert statements.
Something like this:
select 'insert into table1 (column1, column2, column3) values (' ||
column1 || ', ' || column2 || ', ' || column3 || ');' from table 1;
The || sign is the string concatenation sign in Oracle, replace it the appropriate sign in MySql. Export the result set of this query into a file, and you can run it in a SqlPlus.
Ott Karesz
http://www.trendo-kft.hu

Changing the Database Character Set From WE8MSWIN1252 to AR8MSWIN1256

good morning everybody,
I need your help to know all step which it is necessary to follow to change the Database Character Set From WE8MSWIN1252 to AR8MSWIN1256
thank you

If you have not already done so, read up on Character Set Migration and using the CSSCAN tool to verify the database before making any changes.

Returning result set from procedure out parameter, display with anon block

I'm trying to do something pretty simple (I think it should be simple at least). I want to use a pl/sql procedure to return a result set in an OUT parameter. If I run this code by itself (in the given anonymous block at the end, without trying to display any results), toad says that the PL/SQL procedure successfully completed.
How can I display the results from this procedure? I am assuming that the result set should be stored in the O_RETURN_REDEEM_DTL, but how can I get anything out of it?
I have this package with the following procedure:
/* FUNCTION - REDEEM_DTL_READ                          */
     PROCEDURE REDEEM_DTL_READ(
          ZL_DIVN_NBR_IN     IN     REDEEM_DTL.ZL_DIVN_NBR%TYPE,
          GREG_DATE_IN     IN     REDEEM_DTL.GREG_DATE%TYPE,
          ZL_STORE_NBR_IN     IN     REDEEM_DTL.ZL_STORE_NBR%TYPE,
          REGISTER_NBR_IN     IN     REDEEM_DTL.REGISTER_NBR%TYPE,
          TRANS_NBR_IN     IN     REDEEM_DTL.TRANS_NBR%TYPE,
          O_RETURN_REDEEM_DTL OUT REDEEM_DTL_TYPE,
          o_rtrn_cd       OUT NUMBER,
          o_err_cd        OUT NUMBER,
          o_err_msg       OUT VARCHAR2
     IS
     BEGIN
          o_rtrn_cd := 0;
          o_err_msg := ' ';
          o_err_cd := 0;
          --OPEN REDEEM_DTL_READ_CUR(ZL_DIVN_NBR_IN, GREG_DATE_IN, ZL_STORE_NBR_IN, REGISTER_NBR_IN, TRANS_NBR_IN);
          OPEN O_RETURN_REDEEM_DTL FOR SELECT * FROM REDEEM_DTL;
--           LOOP
--                FETCH REDEEM_DTL_READ_CUR INTO O_RETURN_REDEEM_DTL;
--                EXIT WHEN REDEEM_DTL_READ_CUR%NOTFOUND;
--           END LOOP;
--           CLOSE REDEEM_DTL_READ_CUR;
     EXCEPTION
      WHEN OTHERS
      THEN
           o_rtrn_cd := 7;
             o_err_msg := SUBSTR (SQLERRM, 1, 100);
             o_err_cd := SQLCODE;
     END REDEEM_DTL_READ;and call it in an anonymous block with:
DECLARE
ZL_DIVN_NBR_IN NUMBER;
GREG_DATE_IN DATE;
ZL_STORE_NBR_IN NUMBER;
REGISTER_NBR_IN NUMBER;
TRANS_NBR_IN NUMBER;
O_RETURN_REDEEM_DTL PSAPP.CY_SALESPOSTING.REDEEM_DTL_TYPE;
O_RETURN_REDEEM_DTL_OUT PSAPP.CY_SALESPOSTING.REDEEM_DTL_READ_CUR%rowtype;
O_RTRN_CD NUMBER;
O_ERR_CD NUMBER;
O_ERR_MSG VARCHAR2(200);
BEGIN
ZL_DIVN_NBR_IN := 71;
GREG_DATE_IN := TO_DATE('07/21/2008', 'MM/DD/YYYY');
ZL_STORE_NBR_IN := 39;
REGISTER_NBR_IN := 1;
TRANS_NBR_IN := 129;
-- O_RETURN_REDEEM_DTL := NULL; Modify the code to initialize this parameter
O_RTRN_CD := NULL;
O_ERR_CD := NULL;
O_ERR_MSG := NULL;
PSAPP.CY_SALESPOSTING.REDEEM_DTL_READ ( ZL_DIVN_NBR_IN, GREG_DATE_IN, ZL_STORE_NBR_IN,
REGISTER_NBR_IN, TRANS_NBR_IN, O_RETURN_REDEEM_DTL, O_RTRN_CD, O_ERR_CD, O_ERR_MSG );
FOR item IN O_RETURN_REDEEM_DTL
LOOP
    DBMS_OUTPUT.PUT_LINE('ZL_DIVN_NBR = ' || item.ZL_DIVN_NBR);
END LOOP;
END; And end up with an error:
ORA-06550: line 25, column 15:
PLS-00221: 'O_RETURN_REDEEM_DTL' is not a procedure or is undefined
ORA-06550: line 25, column 3:
PL/SQL: Statement ignoredMessage was edited by:
user607908

Aha, I knew I forgot something!
I actually had it defined as a REF CURSOR in PSAPP.CY_SALESPOSTING package spec:
TYPE REDEEM_DTL_TYPE IS REF CURSOR;since I wasn't sure what to make it.
Cursor used in procedure:
CURSOR REDEEM_DTL_READ_CUR (
zl_divn_nbr_in IN NUMBER,
greg_date_in IN DATE,
zl_store_nbr_in IN NUMBER,
register_nbr_in IN NUMBER,
trans_nbr_in IN NUMBER)
IS
SELECT ZL_DIVN_NBR, GREG_DATE, ZL_STORE_NBR, REGISTER_NBR, TRANS_NBR, PAYMENT_TYP_NBR
FROM REDEEM_DTL
WHERE ZL_DIVN_NBR = zl_divn_nbr_in AND GREG_DATE = greg_date_in AND
   ZL_STORE_NBR = zl_store_nbr_in AND REGISTER_NBR = register_nbr_in AND
   TRANS_NBR = trans_nbr_in;Updated code:
/* PROCEDURE - REDEEM_DTL_READ                          */
     PROCEDURE REDEEM_DTL_READ(
          ZL_DIVN_NBR_IN     IN     REDEEM_DTL.ZL_DIVN_NBR%TYPE,
          GREG_DATE_IN     IN     REDEEM_DTL.GREG_DATE%TYPE,
          ZL_STORE_NBR_IN     IN     REDEEM_DTL.ZL_STORE_NBR%TYPE,
          REGISTER_NBR_IN     IN     REDEEM_DTL.REGISTER_NBR%TYPE,
          TRANS_NBR_IN     IN     REDEEM_DTL.TRANS_NBR%TYPE,
          O_RETURN_REDEEM_DTL OUT REDEEM_DTL_TYPE,
          o_rtrn_cd       OUT NUMBER,
          o_err_cd        OUT NUMBER,
          o_err_msg       OUT VARCHAR2
     IS
     BEGIN
          o_rtrn_cd := 0;
          o_err_msg := ' ';
          o_err_cd := 0;
          OPEN REDEEM_DTL_READ_CUR(ZL_DIVN_NBR_IN, GREG_DATE_IN, ZL_STORE_NBR_IN,
               REGISTER_NBR_IN, TRANS_NBR_IN);
          --OPEN O_RETURN_REDEEM_DTL FOR SELECT * FROM REDEEM_DTL;
          LOOP
              FETCH REDEEM_DTL_READ_CUR INTO O_RETURN_REDEEM_DTL;
               EXIT WHEN REDEEM_DTL_READ_CUR%NOTFOUND;
               DBMS_OUTPUT.PUT_LINE('ZL_DIVN_NBR = ' || O_RETURN_REDEEM_DTL.ZL_DIVN_NBR);
          END LOOP;
         CLOSE REDEEM_DTL_READ_CUR;
--           LOOP
--                FETCH REDEEM_DTL_READ_CUR INTO O_RETURN_REDEEM_DTL;
--                EXIT WHEN REDEEM_DTL_READ_CUR%NOTFOUND;
--           END LOOP;
--           CLOSE REDEEM_DTL_READ_CUR;
     EXCEPTION
      WHEN OTHERS
      THEN
           o_rtrn_cd := 7;
             o_err_msg := SUBSTR (SQLERRM, 1, 100);
             o_err_cd := SQLCODE;
     END REDEEM_DTL_READ;the updated anon block:
DECLARE
ZL_DIVN_NBR_IN NUMBER;
GREG_DATE_IN DATE;
ZL_STORE_NBR_IN NUMBER;
REGISTER_NBR_IN NUMBER;
TRANS_NBR_IN NUMBER;
O_RETURN_REDEEM_DTL PSAPP.CY_SALESPOSTING.REDEEM_DTL_TYPE;
O_RTRN_CD NUMBER;
O_ERR_CD NUMBER;
O_ERR_MSG VARCHAR2(200);
BEGIN
ZL_DIVN_NBR_IN := 71;
GREG_DATE_IN := TO_DATE('07/21/2008', 'MM/DD/YYYY');
ZL_STORE_NBR_IN := 39;
REGISTER_NBR_IN := 1;
TRANS_NBR_IN := 129;
-- O_RETURN_REDEEM_DTL := NULL; Modify the code to initialize this parameter
O_RTRN_CD := NULL;
O_ERR_CD := NULL;
O_ERR_MSG := NULL;
PSAPP.CY_SALESPOSTING.REDEEM_DTL_READ ( ZL_DIVN_NBR_IN, GREG_DATE_IN, ZL_STORE_NBR_IN,
     REGISTER_NBR_IN, TRANS_NBR_IN, O_RETURN_REDEEM_DTL, O_RTRN_CD, O_ERR_CD, O_ERR_MSG );
FOR item IN 1..O_RETURN_REDEEM_DTL.COUNT
LOOP
    DBMS_OUTPUT.PUT_LINE('ZL_DIVN_NBR = ' || O_RETURN_REDEEM_DTL(item).ZL_DIVN_NBR);
END LOOP;
END;and the new error:
ORA-06550: line 25, column 38:
PLS-00487: Invalid reference to variable 'O_RETURN_REDEEM_DTL'
ORA-06550: line 25, column 3:
PL/SQL: Statement ignoredAlso, it would be nice if the forums would put a box around code so that it would be easy to
distinguish between what is supposed to be code and what should be regular text...
Message was edited by:
user607908

OBIEE Answers does not display the result set of a report query

Hi,
We have a pivot table type of report in Oracle Business Intelligence Enterprise Edition v.10.1.3.3.2 Answers that has the following characteristics:
     3 Pages
     3 Sections , 4 Columns
     18363 Rows in the result set
As per the NQQuery.log, the query for this report executes successfully resulting in 18363 rows. However, nothing comes up in the display on Answers. Moreover, no error is reported. The instanceconfig.xml file has the following setting:
<PivotView>
     <CubeMaxRecords>30000</CubeMaxRecords>
     <CubeMaxPopulatedCells>300000</CubeMaxPopulatedCells>
</PivotView>
Even with these settings, Answers just returns a blank page - nothing is displayed in the name of the result set of the report query. Has anyone encountered this problem scenario before?
Any help is much appreciated.
Thanks,
Piyush

Hi Fiston / Pradeep,
Thanks for your inputs. A few points to note:
-> I am actually not getting any error message in answers or the NQQuery log. Moreover I am not getting any errors related to "query governor limit exceeding in cube generation" also.
-> I have other pivot table type of reports in the same repository that work fine. In fact the report which has this issue even works sometimes - what actually is happening is that if I alter the number of sections from 3 to 4, then the result set changes from 14755 Rows to 18363 Rows and as per the NQQuery.log in both cases the query completes successfully. However, when the result set has 14755 rows, I get to see the output in Answers; however when the result set is 18636 rows, the Answers screen just goes blank and does not show any output or error. This makes me believe that there is some parameter in instanceconfig or the NQSconfig file - I have tried a lot of changes but nothing works !
Any help is much appreciated.
Best Regards,
Piyush

Which is more efficient way to get result set from database server

Hi,
I am working on a project where I require to query database to fetch result set and then iterate through the resultset. Now, What I want is that I want to create one single java code that would call many different SQLs and create a list out of resultset. There are two approaches for me.
1.) To create a txt file where I can store my queries. My java program can read this file and get the appropriate query to be used.
2.) To create a stored procedure containing the queries and call the stored procedure from my java program. Also, not that some of the queries needs to be created dynamically depending upon the parameteters supplied.
Out of these two approches which is optimum and why?
Also, following things to be noted.
1. At times I want to create where clause of the query dynamically depenending upon the parameters passed.
2. I want one single java file that will handle all database calls.
3. Paramters to the stored procedure can be passed using array descriptor.
4. Conneciton I am making using JNDI.
Please do provide me optimum way of out these two. You may also suggest some other approaches, if any.
Thanks,
Rajan
Edited by: RP on Jun 26, 2012 11:11 PM

RP wrote:
In case of queries stored in text files. I will require to replace some pre defined placeholder with actual parameters and then pass that modified query to db engine. Even I liked the second approach as it is more easily maintainable. There are a couple of issues. Shared SQL is one. Irrespective of the method used, the SQL cursor that is created needs to have bind variables. This ensures re-usability of the cursor. This reduces the risk of Shared Pool fragmentation. This lowers hard parsing and reduces CPU utilisation.
Another issue is flexibility. If the SQL cursors are created by stored procedures, this code resides on the server and abstracts the Java client from the complexities of SQL and SQL performance. The code can easily be updated and fine tuned to deliver faster/better SQL cursors, or modified to take new Oracle features, changes in data model, and so on, into consideration. This stored proc can be updated without having to touch or recompile a single byte of Java client code.
There's also the security issue. What is more secure? SQL encapsulated in stored procs in a secure database and server environment? Or SQL "encapsulated" in text files on the client?
The less code you have running on the client, the less code you have running in the wild that can be compromised without having to first compromise the server.
Only I was worried about any performace issue might happen using this approach. Performance is not a factor of who creates the SQL cursor.
Whether Java client creates a SQL cursor, or a PL/SQL stored proc creates a SQL cursor, or a .Net client creates a SQL cursor - that SQL cursor does not know what the client is. It does not care what the client is. The SQL cursor performs as well as it is capable of.. given the execution plan, data volumes, server resources and speed/performance of the server.
The client language and SQL cursor interface used by the client (there are several in PL/SQL), determines the performance of the client's interaction with the cursor (e.g. round trips to the database when interfacing with the cursor). The client language (and its client interface to the cursor) does not dictate the actual performance of that SQL cursor on the database (does not make joins faster, or I/O faster)
One more question, Will my java program close the cursor that I opened in Procedure?That you need to ask your Java code. Java code leaking ref cursors are unfortunately all too common. You need to make sure that your Java client interface to SQL cursors, closes the cursor handle when done.

Displaying large result sets in Table View u0096 request for patterns

When providing a table of results from a large data set from SAP, care needs to be taken in order to not tax the R/3 database or the R/3 and WAS application servers. Additionally, in terms of performance, results need to be displayed quickly in order to provide sub-second response times to users.
This post is my thoughts on how to do this based on my findings that the Table UI element cannot send an event to retrieve more data when paging down through data in the table (hopefully a future feature of the Table UI Element).
Approach:
For data retrieval, we need to have an RFC with search parameters that retrieves a maximum number of records (say 200) and a flag whether 200 results were returned.
In terms of display, we use a table UI Element, and bind the result set to the table.
For sorting, when they sort by a column, if we have less than the maximum search results, we sort the result set we already have (no need to go to SAP), but otherwise the RFC also needs to have sort information as parameters so that sorting can take place during the database retrieval. We sort it during the SQL select so that we stop as soon as we hit 200 records.
For filtering, again, if less than 200 results, we just filter the results internally, otherwise, we need to go to SAP, and the RFC needs to have this parameterized also.
If the requirement is that the user must look at more than 200 results, we need to have a button on the screen to fetch the next 200 results. This implies that the RFC will also need to have a start point to return results from. Similarly, a previous 200 results button would need to be enabled once they move beyond the initial result set.
Limitations of this are:
1.     We need to use custom RFC function as BAPIs dont generally provide this type of sorting and limiting of data.
2.     Functions need to directly access tables in order to do sorting at the database level (to reduce memory consumption).
3.     Its not a great interface to add buttons to Get next/previous set of 200.
4.     Obviously, based on where you are getting the data from, it may be better to load the data completely into an internal table in SAP, and do sorting and filtering on this, rather than use the database to do it.
Does anyone have a proven pattern for doing this or any improvements to the above design? Im sure SAP-CRM must have to do this, or did they just go with a BSP view when searching for customers?
Note I noticed there is a pattern for search results in some documentation, but it does not exist in the sneak preview edition of developer studio. Has anyone had in exposure to this?
Update - I'm currently investigating whether we can create a new value node and use a supply function to fill the data. It may be that when we bind this to the table UI element, that it will call this incrementally as it requires more data and hence could be a better solution.

Hi Matt,
i'm afraid, the supplyFunction will not help you to get out of this, because it's only called, if the node is invalid or gets invalidated again. The number of elements a node contains defines the number of elements the table uses for the determination of the overall number of table rows. Something quite similar to what you want does already exist in the WD runtime for internal usage. As you've surely noticed, only "visibleRowCount" elements are initially transferred to the client. If you scroll down one or multiple lines, the following rows are internally transferred on demand. But this doesn't help you really, since:
1. You don't get this event at all and
2. Even if you would get the event, since the number of node elements determines the table's overall rows number, the event would never request to load elements with an index greater than number of node elements - 1.
You can mimic the desired behaviour by hiding the table footer and creating your own buttons for pagination and scrolling.
Assume you have 10 displayed rows and 200 overall rows, What you need to be able to implement the desired behaviour is:
1. A context attribute "maxNumberOfExpectedRows" type int, which you would set to 200.
2. A context attribute "visibleRowCount" type int, which you would set to 10 and bind to table's visibleRowCount property.
3. A context attribute "firstVisibleRow" type int, which you would set to 0 and bind to table's firstVisibleRow property.
4. The actions PageUp, PageDown, RowUp, RowDown, FirstRow and LastRow, which are used for scrolling and the corresponding buttons.
The action handlers do the following:
PageUp: firstVisibleRow -= visibleRowCount (must be >=0 of course)
PageDown: firstVisibleRow += visibleRowCount (first + visible must be < maxNumberOfExpectedRows)
RowDown/Up: firstVisibleRow++/-- with the same restrictions as in page "mode"
FirstRow/LastRow is easy, isn't it?
Since you know, which sections of elements has already been "loaded" into the dataSource-node, you can fill the necessary sections on demand, when the corresponding action is triggered.
For example, if you initially display elements 0..9 and goto last row, you load from maxNumberOfExpected (200) - visibleRows (10) entries, so you would request entries 190 to 199 from the backend.
A drawback is, that the BAPIs/RFCs still have to be capable to process such "section selecting".
Best regards,
Stefan
PS: And this is meant as a workaround and does not really replace your pattern request.

Creating a total result set from a query

I am having an issue trying to come up with a solution to return a table with the following stored procedure and then at the bottom being able to have a table row that shows the totals. Do I need to run a separate query for this...here is what I have:
Create PROCEDURE [dbo].[usp_me_totalquestion]
@startDate datetime = NULL
, @ENDDate datetime = NULL
, @userid int = -1
, @groupByScript int = 0
, @groupByAgent int = 0
, @groupByDate int = 0
AS
set nocount on
begin
DECLARE @sql VARCHAR(max)
DECLARE @where VARCHAR(200)
SELECT
--[AgentName] = (CASE WHEN @userid > 0 THEN FullName ELSE 0 END),
[scriptload] = count(*),
[scriptread] = sum(CASE WHEN ScriptRead > 0 THEN 1 ELSE 0 END),
[scriptreadpercent] = round(CASE WHEN count(*) = 0 THEN 0.00 ELSE (sum(CASE WHEN scriptread > 0 THEN 1 ELSE 0 END)/cASt(count(*) AS DECIMAL(6,2))) * 100 END,1),
[cancelled] = sum(CASE WHEN STATUS = 'F' THEN 1 ELSE 0 END),
[retained] = sum(CASE WHEN STATUS = 'S' THEN 1 ELSE 0 END)
FROM ccp_customer_retention_log r
inner join ccp_users u
ON r.id = u.id
WHERE r.insertdt between CAST(@startDate AS VARCHAR(15)) and CAST(@EndDate AS VARCHAR(15))
group by
CASE
WHEN @GroupByScript = 1 THEN r.scriptID
WHEN @GroupByAgent = 1 THEN u.fullname

Please post DDL, so that people do not have to guess what the keys, constraints, Declarative Referential Integrity, data types, etc. in your schema are. Learn how to follow ISO-11179 data element naming conventions and formatting rules. Temporal data should
use ISO-8601 formats. Code should be in Standard SQL as much as possible and not local dialect.
This is minimal polite behavior on SQL forums.
Please stop using “usp_” prefixes. It looks like FORTRAN I and II instead of SQL. We have DATE data type now, too! You even put commas at the front of the punchcard, like 1960's FORTRAN.
Why are you doing dynamic SQL? That is how you tell the world that you have no idea what you are doing. With a flip of a switch, it becomes a procedure for automobiles, squids or Lady Gaga. Then you have a generic magic “id” that makes no sense. What does it
identify? To be is to be something in particular (remember the Law of Identity from Logic 101?). Likewise, there is no generic status – marriage? Employment? Graduation? What? I will guess “user_id”, bu that would be awful. An identifier is a tag number and
would never be an INTEGER. Why do you want to do math with it? Think about how silly “(CASE WHEN @in_user_id > 0 THEN full_name ELSE 0 END)” is; an integer changes to a string (yes, names are strings in data models)
Why did you cast dates to strings? Why are there no aliases on the column names? Start using “<expression> AS <column name>” instead of 1970's Sybase “<column name> = <expression>”; your code will not port, or be readable to SQL programmers.
I have no idea what the proc name should be, but it is a verb and the object upon which it act in a valid data model.
CREATE PROCEDURE <verb>_<object>
(@in_start_date DATE = NULL, @in_end_date DATE = NULL,
@in_user_id INTEGER = -1)
AS
SELECT @in_user_id, ??.script_id, ??.full_name, ??.something_status
FROM CCP_Customer_Retention_Log AS R,
CCP_Users AS U
WHERE R.user_id = U.user_id
AND @in_user_id = U.user_id
AND AND R.insertion_date BETWEEN @in_start_date AND @in_end_date;
But this is still awful. Create a VIEW with this data set. Then do the reports on it. As separate procedures with high cohesion. Follow Netiquette and maybe we can help you.
--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
in Sets / Trees and Hierarchies in SQL

Want to display a result set of 100 records

I have queried from the databse and got a result set of say more than 100 records on a JSP page.Basically as the records are many I want to display 10 records at a time on the JSP page. Please suggest me how I can do it so that i need not query again and again to the database. May be I can have a "Next" button/link which shows the next 10 records on the same JSP page.. or a sequence of numbered links ( say if i have 150 records, 10records at a time I will have 15 numbered links) so that if i click on that number link i will be shown that coressponding records
How can I acheive this. Is there anything possible with Javascript?
PLease do advice me as I am new to HTML/Javascripting and JSP.
Any information will be greatly appreciated.

Take a peek at a tag based solution :
http://www.dotjonline.com/taglib/grid.jsp
Good luck.

Result set not visible in Test View for Physical data service

I have configured a MS SQL server stored procedure as a data service. It returns a resultset. I am calling this data service (physical) from a logical data service. I am able to see the returned result set in the test view (workshop) of the logical data service but not in the test view of the physical data service? Is this a problem within the workshop?
Any help is appreciated.

Never heard of this before. Can you turn on Auditing of XQuery parameters and results and then show me the audit information so I can see you are calling both the logical and the physical data service with the same arguments?
It would also help to see both the logical and physical ds and their schemas. Just zip and post the whole dsp project if possible.

Getting result set from stored procedures in database controls in weblogic

I am calling a stored procedure from database control which actually returns a result set
when i call the stored procedure like
* @jc:sql statement="call PROC4()"
ResultSet sampleProc() throws SQLException;
it gives me exception saying
"weblogic.jws.control.ControlException: Method sampleProc is DML but does not return void or int"
I would appreciate any help
Thanks,
Uma

Thanks for you reply!
1) The stored procedure has head
CREATE OR REPLACE PROCEDURE X_OWNER.DISPLAY_ADDRESS
cv_1 IN OUT SYS_REFCURSOR
AS
err_msg VARCHAR2(100);
BEGIN
--Adaptive Server has expanded all '*' elements in the following statement
OPEN cv_1 FOR
Select ...
commit;
EXCEPTION
WHEN OTHERS THEN
err_msg := SQLERRM;
dbms_output.put_line (err_msg);
ROLLBACK;
END;
If I only run select .. in DBArtisan, it display all 2030,000 rows in 3:44 minutes
2) But when call stored procedure, it will take 80-100 minutes .
3) The stored procedure is translated from sybase using migration tools, it's very simple, in sybase it just
CREATE PROCEDURE X_OWNER.DISPLAY_ADDRESS
AS
BEGIN
select ..
The select part is exact same.
4) The perl code is almost exact same, except the query sql:
sybase verson: my $sql ="exec DISPLAY_ADDRESS";
and no need bind the cursor parameter.
This is batch job, we create a file with all information, and ftp to clients everynight.
Thanks!
Rulin

Change display of result set from 'showing data as rows, to showing data as one or more columns'

Similar Messages

Maybe you are looking for