Data retrieval question

I have a servlet called ListMyReservations. It is supposed to put information into a database called travel.
This information came from 3 different threads in another servlet called reserveServlet except for the customerID which came from the login.
My question is: How do I take the information from the 3 threads and the login and place them into this database through the ListMyReservations servlet? The database is created, I just need to insert the new info.

You will want to start by at least reading through the JDBC tutorial.
http://java.sun.com/products/jdbc/learning.html
Then you read the documentation for your app/web server to figure out how it expects you to do jdbc.

Similar Messages

My macbook pro is still under warranty. I have just put it into Mac 1 to be repaired because I had the folder with the dreaded Question mark on it....new hard drive. I was told that if I wanted my data retrieved, I would have to pay $445 p/h. Ahh!!!

My macbook pro is still under warranty. I have just put it into Mac 1 to be repaired because I had the folder with the dreaded Question mark on it....new hard drive. I was told that if I wanted my data retrieved, I would have to pay $445 p/h. Ahh!!! Shouldn't that be covered by warranty?

My newest Mac just did the same "folder of death" dance. It's too late for you now, but you might consider a passport backup drive.You can get 2&3 T-bytes now fairly reasonably priced. A given with computers is they will crash, just a question of how bad and when, so you can be prepared for the next time.

Real tough data retrieval - assistance needed

Late 2011 Macbook Pro with 500GB hard drive
Lion 10.7
One morning out of absolutely nowhere I get this grey screen with a flashing question mark folder. I take it to the geniuses at the Apple store and they tell me my hard drive has failed (no explanation). My mac is under warranty so they gave me a new hard drive for free, bagged my old hard drive and told me "good luck" retrieving the data.
I'm on a mission to retrieve the data without paying for services. I have never retrieved data before but I've been doing a lot of forum reading and I have been getting protips from an IT friend who has saved my PC data before.
As of now, I have been unable to even access the hard drive and so I am reaching out to the community to help me conquer this project.
the problem is not the OS (according to Apple store)
when hooking up with the dongle, neither Finder nor Disk Utility detect the bad drive
the drive will spin when forced by the dongle (so I've ruled out the freezer method)
I was advised (by friends and forums alike) to download so powerful data retrieval software:
Data Rescue [did not detect bad external drive]
Disk Drill [did not detect bad external drive]
TestDisk (http://www.cgsecurity.org/wiki/TestDisk) [I can get it up and running but I have no idea how to use this software]
So that seems to be the big problem, when I hook up my failed drive as an external hard drive, there is no acknowledgement from my MBP that it is connected and as such data recovery programs cannot access it. When I still had it installed in my computer, there was no clicking sound and it doesn't seem like any of the components are jammed up as it still spins.
Where do I go from here? Please keep in mind that I am new to resolving my own technical problems but I'm willing to learn. Tired of being one of those people who look at computer parts and get anxious.
NOTE: I haven't tried Target Mode as I do not have a firewire cable or access to another mac (yet). If you think I should try this, please let me know.

A hard drive that will not divulge BOTH its Make&Model and a reasonable size/capacity to the likes of Disk Utility and data rescue programs has died, and connot be repaired with any software.
Target Disk mode will not improve anything. The drive is read as a Mac Volume by software. If it won't mount under Mac OS X, it won't mount under Target Disk Mode.

Data retrieval for Sony handycam with 60G harddrive.

Does BestBuy do data retrieval? I have a handycam with work video on it that accidentaly got formated. I know with a standard harddrive you can still retrieve it if there has not been recording since the formatting but I am not sure about camera harddrives. If BestBuy does not do it, does anyone know where it can be done and approximate cost. I live in the New Orleans area.
I may try the same question in computers if nobody knows. Thanks in advance for any guidance at all.

Best Buy sends out for data retrieval. You can have it sent out through geek squad to get the estimate of cost.
Crystal
Superuser
Forum Guidelines | Terms & Conditions | Community Guidelines | What is a Superuser?
*Remember to mark your questions solved and click the star to give kudos to show your thanks!*
While I used to be a Best Buy Employee, I no longer have any affiliation with Best Buy.
My opinions do not in any way shape or form represent Best Buy's Official decisions.

Data retrieval after EM closed, bug?

Hello.
I think TopLink is retrieving data after EM has been closed in the case
below, and I'm not sure if this behavior is correct.
CASE: (Steps 1 to 4 and follows)
STEP 1.- I'm using a recursive table (most probably the same applies for
non-recursive tables):
create table "SA"."RECURSIVA" (
PK int primary key not null,
DATO varchar(10),
PADRE int references RECURSIVA
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (0,'Raiz',null);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (1,'n1',0);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (2,'n2',1);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (3,'n3',2);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (4,'n4',3);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (5,'n5',4);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (6,'n6',5);
INSERT INTO "SA"."RECURSIVA" (PK,DATO,PADRE) VALUES (7,'n7',6);
STEP 2.- This is the entity (please note+ the LAZY fetch type):
@Entity
@Table(name = "RECURSIVA")
public class Recursiva implements Serializable {
@Id
@Column(name = "PK", nullable = false)
private Integer pk;
@Column(name = "DATO")
private String dato;
@OneToMany(mappedBy = "padre")
private Collection<Recursiva> recursivaCollection;
@JoinColumn(name = "PADRE", referencedColumnName = "PK")
@ManyToOne(fetch=FetchType.LAZY)
private Recursiva padre;
STEP 3.- This is the data retrieval code (please note+ EntityManager is closed
before accesing data):
EntityManagerFactory emf =
Persistence.createEntityManagerFactory("mijpa");;
EntityManager em = emf.createEntityManager();
Recursiva rc = null;
rc = em.find(Recursiva.class, 7);
em.close();
while (rc != null) {
System.out.println(rc.getDato());
rc = rc.getPadre();
emf.close();
STEP 4.- Results:
n7
n6
n5
n4
n3
n2
n1
Raiz
QUESTIONS: If em is closed right after the leaf entity is retrieved:
A. How is it possible that all of the leaf ancestors up to the root are
retrieved?
B. Is toplink accessing the database after em is closed or simply the
full hierarchy is eagerly loaded at the very beginning?
C. Is this correct, or is it a bug?
NOTE: openjpa prints n7 and n6, as I would have expected.
I would appreciate your comments, specially if you think this is a bug,
in order to report it.
Thanks.
Antonio.
Tested with:
* [Oracle TopLink Essentials - 2.0.1 (Build b09d-fcs (12/06/2007))]
* [derby 10.4.1.3]
* [java hotspot 1.6.0_06-b02]
* [ubuntu 8.04.1 2.6.24-19-generic]

Issued as
https://glassfish.dev.java.net/issues/show_bug.cgi?id=5782

Multi server data retrieval performance

Hi experts,
I have a question regarding the data retrieval performance (EVDRE) on a multi server installation environment on Microsoft SQL Server 2008.
We have succesfully migrated Outlooksoft 4.2 SP03 to SAP BPC 7.0 SP07 for a customer. During this project we have also set up a complete new server environment consisting of:
Development server: dedicated single server, Windows 2003 Standard SP2 32 bit, SQL Server 2008 SP1 with cumulative update package 6, SAP BPC 7.0 SP07, 2 quad core processors, 4 GB RAM
QA server: dedicated multi servers - 1 database server (SQL/OLAP), Windows 2003 Standard SP2 64 bit, SQL Server 2008 SP1 with cumulative update package 6, 2 quad core processors, 32 GB RAM - 1 dedicated application/web server, Windows 2003 Standard SP2 32 bit, SQL Server 2008 SP1 with cumulative update package 6 (shared components / reporting services), SAP BPC 7.0 SP07, 2 quad core processors, 4 GB RAM
Production server: dedicated multi servers - 1 database server (SQL/OLAP/Reporting services), Windows 2003 Standard SP2 64 bit, SQL Server 2008 SP1 with cumulative update package 6, 2 quad core processors, 32 GB RAM - 2 dedicated application/web server, Windows 2003 Standard SP2 32 bit, SQL Server 2008 SP1 with cumulative update package 6 (shared components), SAP BPC 7.0 SP07, 2 quad core processors, 4 GB RAM
Furthermore, two terminal servers with the SAP BPC client.
All servers have good performancve and we have great times on cube processing and SQL processing. However, to our great surprise we find that the single development server is much faster with a single user to retrieve data using EVDRE than the multi-server environment. About 2x as fast. A reporting book with more then 10 sheets and about 25 EVDRE's takes about 42 seconds on the development server and 93 seconds on the multi server.
It seems that EVDRE is taking up a lot of time to communicate between the application server and the database server in a multi server environment while being much faster on a single server. This is not what we want :-). The network speed in the domain consist of all 1 GB lines so that should not be the issue.
Do you have any experience with this? How can we upgrade the speed of the multi server, are there specific settings?
Hope the get some useful answers. Thanks in advance.
Damien
Edited by: DWiegman on Feb 20, 2010 4:15 PM

Hi,
   You have to activate also the EVDRE logs on the client and server level, just to understand from where is coming the problem (appserver-db comuncication or client-appserver communication). You have to check also if there is any proxy firewall between client and application server.
    In case you are using NLB, please verify if afinity is setup to true.
    The performance problems can be come from db level. Did you verify how many records do you have into WB table for the specific application? Are you keeping the DB in full mode? How big is the log of the databse?
    The are a lot of things that can have impact of this, but it looks to be a setup problem.
Hope this can help you,
Mihaela

Data retrieval failed for the subreport

Hi All,
I m getting this error whn i try to bind a sub report within a report,
Data retrieval failed for the subreport, 'Subreport2', located at: E:\Anil\Sample.rdlc. Please check the log files for more information.
Thanks,
Anil Kumar Dhiman

Hi Anil,
This is a know issue which you can see in the link:https://connect.microsoft.com/SQLServer/feedback/details/648560/subreport-with-shared-dataset-throws-error
This issue occurs only on Business Integrated Development Studio (BIDS) and use a shared dataset in subreport. And it is fixed in SQL Server Reporting Services 2012. So you can avoid this issue by changing the shared dataset to embedded dataset or deploy the
shared dataset to Report Server and view report on Report Manage.
If you have any questions, please feel free to ask.
Regards,
Charlie Liao
TechNet Community Support

Data archieving questioner required

Dear All,
We have been approched by one of our cleint for DATA ARCHIVING from R/3 system.
Management has pushed my name in this.
Requirement is to prepare DATA ARCHIVING QUESTIONER template.
Can please anybody help me out in this regard from MM point of view.
Thanking you in advance.
Regards
Nasir Chapparband.

Hi,
Refer following link;
[http://itmanagement.earthweb.com/datbus/article.php/3109221]
SAP Data Archiving
1.0 Introduction to Enterprise Data Archiving
Currently, a large number of enterprises use SAP R/3 as a platform for integration of business processes. The continuous usage of SAP results in huge amounts of enterprise data, which is stored in SAP R/3. With passage of time, the new and updated data is entered into the system while the old data still resides in the SAP enterprise system.
Since some of the old data is critical, it cannot be deleted. The difficulty is keeping the data you want, and deleting the data you do not want. Hence, a SAP database keeps on expanding rapidly and enterprise systems, which have limited data retention abilities for a few years, suffer from problems such as data overflow, longer transaction processing times, and performance degradation.
The solution of this problem has led to the concept of Data Archiving in SAP. Data Archiving removes out-of-date data from the SAP database that the R/3 system does not need online, but can be retrieved on a later date, if required. This data is known as archived data and is stored at an offline location. Data Archiving not only consistently removes data from the database but also ensures data availability for future business requirements.
One rule of thumb is that in a typical SAP enterprise system, the ratio of data required to be online and instantly accessible to old data, which could be archived, and stored offline is 1:6. For example, if an enterprise has 2100 GB of SAP database, the online data, which is frequently used by SAP users will be 300 MB and the rest (1800 MB) will be scarcely used and hence can be archived.
1.1 Data Archiving u2013 Features
It provides a protection layer to the SAP database and resolves underperformance problems caused by huge volumes of data. It is important that SAP users should keep only minimal data to efficiently work with database and servers. Data archiving ensures that the SAP database contains only relevant and up-to-date data that meet your requirements.
Data archiving uses hardware components such as hard disks and memory. For efficient data archiving, minimum number of disks and disk space should be used.
It also reduces the system maintenance costs associated with the SAP database. In the SAP database there are various procedures such as, data backup, data recovery, and data upgrade.
SAP data archiving complies with statutory data retention rules that are common and well-proven techniques.
SAP data archiving can be implemented in two ways. In the next section both options will be discussed in detail.
Also refer following link;
[SAP Data Archiving Tutorial|http://www.thespot4sap.com/articles/SAP_Data_Archiving_Overview.asp]

Query Error Information: Result set is too large; data retrieval ......

Hi Experts,
I got one problem with my query information. when Im executing my report and drill my info in my navigation panel, Instead of a table with values the message "Result set is too large; data retrieval restricted by configuration" appears. I already applied "Note 1127156 - Safety belt: Result set is too large". I imported Support Package 13 for SAP NetWeaver 7. 0 BI Java (BIIBC13_0.SCA / BIBASES13_0.SCA / BIWEBAPP13_0.SCA) and executed the program SAP_RSADMIN_MAINTAIN (in transaction SE38), with the object and the value like Note 1127156 says... but the problem still appears....
what Should I be missing ?????? How can I fix this issue ????
Thank you very much for helping me out..... (Any help would be rewarded)
David Corté

You may ask your basis guy to increase ESM buffer (rsdb/esm/buffersize_kb). Did you check the systems memory?
Did you try to check the error dump using ST22 - Runtime error analysis?
Edited by: ashok saha on Feb 27, 2008 10:27 PM

WAD : Result set is too large; data retrieval restricted by configuration

Hi All,
When trying to execute the web template by giving less restiction we are getting the below error :
Result set is too large; data retrieval restricted by configuration
Result set too large (758992 cells); data retrieval restricted by configuration (maximum = 500000 cells)
But when we try to increase the number of restictions it is giving output. For example if we give fiscal period, company code ann Brand we are able to get output. But if we give fical period alone it it throwing the above error.
Note : We are in SP18.
Whether do we need to change some setting in configuration? If we yes where do we need to change or what else we need to do to remove this error
Regards
Karthik

Hi Karthik,
the standard setting for web templates is to display a maximum amount of 50.000 cells. The less you restrict your query the more data will be displayed in the report. If you want to display more than 50.000 cells the template will not be executed correctly.
In general it is advisable to restrict the query as much as possible. The more data you display the worse your performance will be. If you have to display more data and you execute the query from query designer or if you use the standard template you can individually set the maximum amount of cells. This is described over [here|Re: Bex Web 7.0 cells overflow].
However I do not know if (and how) you can set the maximum amount of cells differently as a default setting for your template. This should be possible somehow I think, if you find a solution for this please let us know.
Brgds,
Marcel

Result set is too large; data retrieval restricted by configuration

Hi,
While executing query for a given period, 'Result set is too large; data retrieval restricted by configuration' message is getting displayed. I had searched in SDN and I had referred the following link:
http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/d047e1a1-ad5d-2c10-5cb1-f4ff99fc63c4&overridelayout=true
Steps followed:
1) Transaction Code SE38
2) In the program field, entered the report name SAP_RSADMIN_MAINTAIN and Executed.
3) For OBJECT, entered the following parameters: BICS_DA_RESULT_SET_LIMIT_MAX
4) For VALUE, entered the value for the size of the result set, and then executed the program:
After the said steps, the below message is displayed:
OLD SETTING:
OBJECT = VALUE =
UPDATE failed because there is no record
OBJECT = BICS_DA_RESULT_SET_LIMIT_MAX
Similar message is displayed for Object: BICS_DA_RESULT_SET_LIMIT_DEF.
Please let me know as to how to proceed on this.
Thanks in advance.

Thanks for the reply!
The objects are not available in the RSADMIN table.

Should I use a data retrieval service or software to recover data ?

Please pardon the length of this post.
Here's the setup for our office:
Computer 1:
10.4.8 OS X
1 GHZ PowerPC G4: silver grey tower, grey apple
1MB L3 Cache
256 MB DDR SDRAM
Computer 2:
10.4.8 OS X
Dual 450 MHZ PowerPC G4: blue grey tower, blue apple
256 MB SDRAM
Computer 3:
10.4.8 OS X
1 GHZ PowerPC G4 IMac Flat Screen:
256 MB DDR SDRAM
I have 2 LaCie Big Disk d2 Extremes daisy chained and connected to the IMac. We use the first to store all of our data to keep our local disks free. The second d2 is the backup to the first. The other 2 computers connect to the d2's via an ethernet hub. The d2's are each partitioned into 4 compartments.
A couple of days ago I started the system up when I got in in the morning, and the main d2 would not open. I ran disk utility, but it said that the drive was damaged beyond it's ability to repair. I ran DiskWarrior, and it gave me this message:
"The directory of disk 'G4' cannot be rebuilt. The disk was not modified. The original directory is too severely damaged. It appears another disk utility has erased critical directory information. (3004, 2176)."
I contacted Disk Warrior tech support and after a series of exchanges that had me send him dated extracted from the terminal function, he said this:
"It appears that the concatenated RAID inside your LaCie
drive has failed (your 500GB drive is actually 2 250GB
hard drives). That is why we only saw 2 partitions
on "disk3". A possible cause could be a failed bridge
in the case.
You may be looking at sending this drive to a data recovery service.
However, it is possible that we may be able to recover data
from the partitions that we CAN see. What we would be doing would cause no damage to your data
unless the hard drives were having a mechanical failure (ie, the
head crashed and was contacting the platters, similar to scratching
a record). But from what I've seen, I don't feel that is the case.
I believe the piece of hardware that 'bridges' the two drives to
make them act as one has failed. that's why we can only see data
about 1 of the 2 drives in the case.
We would only be attempting to gather data off the drive. Since
data recovery services sometimes charge for amount of data retrieved,
it's up to you how you want to proceed."
Most of the data from the past 5 years for our business stands at being lost. Only some of it had been properly backed up on the second drive, due to some back up software issues. I want to do whatever I can to retrieve all of, or at least some of the data. From what the Alsoft technician said, do you think that the data recovery software available to the consumer is going to be robust enough to retrieve at least the data from the one disk in the drive that is recognizable (there are 2 250gig disks in the d2X. Only one is responding at all). If so, do these Softwares further damage the disks? Or should I just send the drive to a data recovery service?
I'd like to try to extract some of it myself via over the counter retrieval software, but I don't know whether to trust these programs?
Any advice would be greatly appreciated.
Thanks in advance.
Peter McConnell
1 GHZ PowerPC G4 IMac Flat Screen Mac OS X (10.4.8) Posted

Peter
My 2 cents:
I have used FileSalvage
http://www.subrosasoft.com/OSXSoftware/index.php?mainpage=product_info&productsid=1
to recover files from damaged disks. It works as advertised, within limits. Some files may be too damaged to recover. More importantly yo get to scan the disk before actually recovering, and it will give you a list of what it thinks it can recover.
My experience was that it recovered approx 85% of the data.
YMMV but they do have a trial.
Regards
TD

Report Developed in Webi Rich Client Consuming more time in Data Retrieval

Dear All,
I am a BO Consultant, recently in my project I have developed one report in Webi Rich Client., at the time of development and subsequent days the report was working fine (taking Data Retrieval time less than 1 minute), but after some days its taking much time (increasing day by day and now its taking more than 11 minutes).
Can anybody point out what could be the reason?????
We are using,
1. SAP BI 7.0
2. SAP BO XI 3.1 Edge
3. Webi Rich Client Version :12.3.0 and Build 601
This report is made on a Multiprovider (Sales).
What are the important points that should be considered so that we can improve the performance of Webi Reports????
Waiting for a suitable solution.....................
Regards,
Arun Krishnan.G
SAP BO Consultant
Edited by: ArunKG on Oct 11, 2011 3:50 PM

Hi,
Please come back here with a copy/paste of the 2 MDX statements from the MDA.log to compare the good/bad runtimes.
& the 2 equivalent DPCOMMANDS clauses (good and bad) from the WebI trace logs.
Can u explain what u really mean in the bold text above..................Actually I didn't get you..........
Pardon, I have only 3 months experience in BO.
Regards,
Arun
Edited by: ArunKG on Oct 11, 2011 4:28 PM

Data Retrieval Speed in Oracle Spatial vs. ESRI ArcSDE

I would appreciate any opinions regarding data retrieval
performance between Oracle Spatial and ESRI ArcSDE. Would an end-
user (using ESRI software) experience significant differences in
data retrieval speed depending on how the data were stored in
Oracle (MDSYS.SDO_GEOMETRY verses ESRI Binary/Blob formats).
Knowing that the ESRI binary formats are tailored to their
software front-end apps (ArcGIS, ArcMap, ArcCatalog, and
ArcInfo), wouldn't this be a "non-issue" until the spatial
dataset gets "large", and even then, wouldn't performance be
(almost) equal if the spatial indexes were created properly?
Thanks for your inputs,
Bruce

John,
You can't do that type of query in sql from sql*plus using
SDEBINARY. HOwever, you can perform spatial queries in ArcMap
if you are using SDEBINARY.
You can use the query builder to perform point-in-polygon type
queries.
Hope that helps.
For my two cents, I think SDO_GEOMETRY gives you a more robust
database to work with, because you have the added power of
Oracle Spatial functions. If you are using SDEBINARY you are
limited to only what you can do thru ArcGIS.
If you are concerned more about performance than accessibility,
especially with a large number of users, then SDEBINARY might
be the better choice.
I love Oracle Spatial and am hoping that the performance issue
will not be a serious one when we start putting ArcIMS developed
apps into production.
Dave

Passing values to subreport in SSRS throwing an error - Data Retrieval failed for the report, please check the log for more details.

Hi,
I have the subreport calling from the main report. The subreport is based on MDX query agianst the SSAS cube. some dimensions in cube has values 0 and 1.
when I try to pass '0' to the sub report as the parameter value, it gives an error "Data Retrieval failed for the report, please check the log for more details".
Actually I am using table for storing these parameter values. In the main report I am calling this table (dataset) and passing these values to subreport.
so I have given like [0],[1] and this works fine. when I give only either [0] or [1] then it is throwing an error.
Could you please advise on this.
Appreciate all and any help.
Thanks,
Divya

Hi Divya,
Based on the current description, I understand that there is no issue if you pass two values from main report to subreport, while the issue occurs when passing one value to subreport.
To narrow down the issue, I want to confirm whether the subreport can run if there is only [0] or [1] in the subreport. If so, it indicates the query statements exist error in the subreport. If it’s not the case, this shows the issue occurs during passing
values from main report to subreport. To make further analysis, please post the details of query statements of the subreport to the forum.
Regards,
Heidi Duan
Heidi Duan
TechNet Community Support

Data retrieval question

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