Best efficiently way to transform a large rows ResultSet to Vector

Best efficiently way to transform a large rows ResultSet to a 2-dimensional ArrayList or Vector in a minute ?
If you can help me solve this problem , I 'll give you my duke .

Why don't you use info objects? For example your table is having col1(number),col2(text/varchar),col3(text/varchar), create an info object like this,
class MytableInfo implements java.io.Serializable {
private int col1;
private String col2;
private String col3;
public MytableInfo(int col1,String col2,String col3) {
this.col1=col1;
this.col2=col2;
this.col3=col3;
public int getCol1() {
return col1;
//Getter for other two properties too.
and in your ResultSet class,
Vector v = new Vector();
while(rs.next()) v.add(new MytableInfo(rs.getInt(1),rs.getString(2),rs.getString(3));
return v;
So, it will be easier for retrieving the values later and it is a clean way of doing it.
Sudha

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The most efficient way to search a large String

Hi All,
2 Quick Questions
QUESTION 1:
I have about 50 String keywords -- I would like to use to search a big String object (between 300-3000 characters)
Is the most efficient way to search it for my keywords like this ?
if(myBigString.indexOf("string1")!=1 || myBigString.indexOf("string2")!=1 || myBigString.indexOf("string1")!=1 and so on for 50 strings.)
System.out.println("it was found");
QUESTION 2:
Can someone help me out with a regular expression search of phone number in the format NNN-NNN-NNNN
I would like it to return all instances of that pattern found on the page .
I have done regular expressions, in javascript in vbscript but I have never done regular expressions in java.
Thanks

Answer 2:
If you have the option of using Java 1.4, have a look at the new regular expressions library... whose package name I forget :-/ There have been articles published on it, both at JavaWorld and IBM's developerWorks.
If you can't use Java 1.4, have a look at the jakarta regular expression projects, of which I think there are two (ORO and Perl-like, off the top of my head)
http://jakarta.apache.org/
Answer 1:
If you have n search terms, and are searching through a string of length l (the haystack, as in looking for a needle in a haystack), then searching for each term in turn will take time O(n*l). In particular, it will take longer the more terms you add (in a linear fashion, assuming the haystack stays the same length)
If this is sufficient, then do it! The simplest solution is (almost) always the easiest to maintain.
An alternative is to create a finite state machine that defines the search terms (Or multiple parallel finite state machines would probably be easier). You can then loop over the haystack string a single time to find every search term at once. Such an algorithm will take O(n*k) time to construct the finite state information (given an average search term length of k), and then O(l) for the search. For a large number of search terms, or a very large search string, this method will be faster than the naive method.
One example of a state-search for strings is the Boyer-Moore algorithm.
http://www-igm.univ-mlv.fr/~lecroq/string/tunedbm.html
Regards, and have fun,
-Troy

Most efficient way to work with large projects

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Would the best way be to break the task into a few smaller projects and join them up after editing or just to create on long project?
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I use Documents to Go. And I don't have the premium version but it does have online syncing in the premium version. Both the regular and premium version have a desktop program that allows you to sync documents without going through iTunes. Add the ability to do online syncing such as sugarsync, dropbox, etc, might help.
I dont' think they automatically update. You have to manually do it. But the 'price' of manually updating the documents is that the program works off line. So type when you're away from the internet, update it when you get online again and move on.
I also like how it interfaces with regular word documents
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What is the most efficient way of converting relatively large program to pervious version?

I am trying to convert 8.5 labview program to 8.2 version. When I do that it creates many more subfolders with VIs that are not converted.
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Hi Chetna,
How are you confirming that the VIs saved in the sub-folders after conversion have not been converted to a previous version?
If you open the VI at the top of the hierarchy and 'Save for Previous Version...' it saves the open VI and all it's depencies for the chosen version. The reason you see all the sub-folders is because the relative path between VIs is maintained.
This KnowledgeBase article: Can I Save VIs in My Current LabVIEW for Use in a Previous Version? describes this process.
There is also a Community Example: Programmatically Save VIs for Previous Version that could also save time if you have a lot of VIs to convert.
I hope this helps!
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National Instruments
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What is the efficient way to migrate the large DB (over 1TB) from 9i to 11g

Can any body give a suggestion for migrate the large DB (Over 1TB) from 9i to 11g?

Hi;
Can any body give a suggestion for migrate the large DB (Over 1TB) from 9i to 11g?Please check below
Minimizing Downtime During Production Upgrade [ID 478308.1]
Master Note For Oracle Database Upgrades and Migrations [ID 1152016.1]
Different Upgrade Methods For Upgrading Your Database [ID 419550.1]
I suggest also Please check my blog
http://heliosguneserol.wordpress.com/2010/06/17/move-to-oracle-database-11g-release-2-wiht-mike-dietrich/
In this pdf you can see patch of to upgrade db from x to n wiht many senerios wiht all related metalinks notes which is created by Oracle worker Mike Dietrich
Regard
Helios

What is the best, most efficient way to read a .xls File and create a pipe-delimited .csv File?

What is the best and most efficient way to read a .xls File and create a pipe-delimited .csv File?
Thanks in advance for your review and am hopeful for a reply.
ITBobbyP85

You should have no trouble doing this in SSIS. Simply add a data flow with connection managers to an existing .xls file (excel connection manager) and a new .csv file (flat file). Add a source to the xls and destination to the csv, and set the destination
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What is the best way of compressing a large 3 hour final cut file

What is the best way of compressing a large 3 hour final cut file. I shot the play and it is in final cut and I rndered it so now I have a 22gb file that I need to put on a dvd . Any suggestions
Thanks
Macbook Pro
2.3 GHz Intel Core i7
with Final Cut Pro 7.0.3
using Lion as operating system

Presuming your menus aren't complicated(include audio or video) the total size for the MPG-2 and AC3 files should probably be under 8GB for a dual layer disk. The inspector will tell you the estimated size. 2-pass varible bit rate would be recommended.
Trying to fit 3 hours on a DVD-5 will only bring very noticable quality hits. Compressor will let you change the average bit rate so that you can fit 174 minutes but trade-off isn't worth it in my opinion.
Be aware that dual-layer -R and +R media may not play well for everyone everywhere.
I presume you are not making 1000 or more copies? If you were replication could solve this.
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Best way to organize a large photo library on a 10.6.8 Macbook?

I have an older Macbook pro- version 10.6.8.
I am looking for the best way to organize my large library of photos (approx. 15,000). I have both personal as well as professional photos that I would like to organize and keep separately. I currently use iPhoto'09 version 8.1.2 but it has become very slow and I would like to find a solution that uses better organization. I am considering keeping my personal photos in iPhoto and my professional photos in another organization app. I was thinking about purchasing Aperture, however it is only available for Mac OS X version 10.7.5 or later and the same goes for the latest version of iPhoto.
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If that fails:
Option 2
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Backing Up:
Time machine will back up, yes. Just be sure it's set up correctly.
Most Simple Back Up
Drag the iPhoto Library from your Pictures Folder to another Disk. This will make a copy on that disk.
Slightly more complex:
Use an app that will do incremental back ups. This is a very good way to work. The first time you run the back up the app will make a complete copy of the Library. Thereafter it will update the back up with the changes you have made. That makes subsequent back ups much faster. Many of these apps also have scheduling capabilities: So set it up and it will do the back up automatically. Examples of such apps: Chronosync or DejaVu . But are many others. Search on MacUpdate
Regards
TD

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Best way to upload a large 25 minute video and where to?

best way to upload a large 25 minute video and where to?

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YouTubes help section should give you all the details.
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What is the most efficient way of passing large amounts of data through several subVIs?

I am acquiring data at a rate of once every 30mS. This data is sorted into clusters with relevant information being grouped together. These clusters are then added to a queue. I have a cluster of queue references to keep track of all the queues. I pass this cluster around to the various sub VIs where I dequeue the data. Is this the most efficient way of moving the data around? I could also use "Obtain Queue" and the queue name to create the reference whenever I need it.
Or would it be more efficient to create one large cluster which I pass around? Then I can use unbundle by index to pick off the values I need. This large cluster can have all the values individually or it co
uld be composed of the previously mentioned clusters (ie. a large cluster of clusters).

> I am acquiring data at a rate of once every 30mS. This data is sorted
> into clusters with relevant information being grouped together. These
> clusters are then added to a queue. I have a cluster of queue
> references to keep track of all the queues. I pass this cluster
> around to the various sub VIs where I dequeue the data. Is this the
> most efficient way of moving the data around? I could also use
> "Obtain Queue" and the queue name to create the reference whenever I
> need it.
> Or would it be more efficient to create one large cluster which I pass
> around? Then I can use unbundle by index to pick off the values I
> need. This large cluster can have all the values individually or it
> could be composed of the previously mentioned clusters (i
e. a large
> cluster of clusters).
It sounds pretty good the way you have it. In general, you want to sort
these into groups that make sense to you. Then if there is a
performance problem, you can arrange them so that it is a bit better for
the computer, but lets face it, our performance counts too. Anyway,
this generally means a smallish number of groups with a reasonable
number of references or objects in them. If you need to group them into
one to pass somewhere, bundle the clusters together and unbundle them on
the other side to minimize the connectors needed. Since the references
are four bytes, you don't need to worry about the performance of moving
these around anyway.
Greg McKaskle

Best way to transform a jigsaw puzzle to landscape

Hello,
I am trying to puppet warp a big square that looks like a complete jigsaw puzzle and warp it to a rolling hill landscape. What befuddles me is how to rotate the plane around its center? Another words, if I put a skewer into the middle of the plane or puzzle, and take the corner and rotate it around that axis or the in 3D talk it would be the y axis. Every place I put the axis poin and rotate the plane, it rotates in the z axis, or around like a clock. So, to clarify, if I could put my palm down onto teh center of this plane, and with the other hand, take the corner of this plane and spin it around a bit, how could I do this move in Photoshop?
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Laurie

Why don't you use info objects? For example your table is having col1(number),col2(text/varchar),col3(text/varchar), create an info object like this,
class MytableInfo implements java.io.Serializable {
private int col1;
private String col2;
private String col3;
public MytableInfo(int col1,String col2,String col3) {
this.col1=col1;
this.col2=col2;
this.col3=col3;
public int getCol1() {
return col1;
//Getter for other two properties too.
and in your ResultSet class,
Vector v = new Vector();
while(rs.next()) v.add(new MytableInfo(rs.getInt(1),rs.getString(2),rs.getString(3));
return v;
So, it will be easier for retrieving the values later and it is a clean way of doing it.
Sudha

Transforming large data arrays

Hi,
I believe this is quite a simple question but I am trying to find the most efficient way of doing this, currently I have acquired multi channel binary data in files that that can be upto and above 1GB. The data is stored in one file in the order (say when acquiring 3 channels) channel 1, channel 2, channel 3, channel 1..... and so on. I need to then convert this data into a spreadsheet file, .txt is fine and also transform it into voltages and reorientate it so the new file would be a 2d array in the form:
channel 1 channel 2 channel 3
channel 1 channel 2 channel 3.......... and so on
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Thanks
Charlie

Hi raj,
here's a picture (worth a thousand words ):
Functions look different in LV7.1 (from left to right): Open file, read text file, write text file, close file.
And you should note your LabView version when you ask for example code!
Message Edited by GerdW on 01-24-2008 01:30 PM
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome
Attachments:
readwrite_ex.png ‏4 KB

What is the efficient way of working with tree information in a table?

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quick response is highly appreciated.
thanks in advance,
rahul

Did you check out this link?
http://www.intelligententerprise.com/001020/celko1_1.shtml
Joe Celko has really gave some interesting way to implement tree in a rdbms.
Best wishes
Anubrata

Most efficient way to insert into a story with many floating images?

I have a document with many floating images. They must all be floating because otherwise I do not get the Caption numbering right and it is impossible (because some images take an entire page) to use only anchored images.
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Is there a smarter way. I have been thinking about splitting and later rejoining a section. If I add pages to one section, the following sections are not damaged, after all.
What is the best way to do this?
Thanks in advance.

I have a document with many floating images. They must all be floating because otherwise I do not get the Caption numbering right and it is impossible (because some images take an entire page) to use only anchored images.
Now, I have to insert a large part into the middle / at the beginning of a section. If I do that the text will flow, but the images remain in place. This is extremely slow working because of all teh movements I have to do on all the images. What I would like to do is to let the pages after the page where I am entering remain the same and when I insert text and images this should just move up one page at a time. Then, at the end, I can do the fine tuning of attaching both parts again. Is there a way to do that in an efficient way?
What I now often do is move all the floating images out of the pages, then insert the new stuff, move the images back, then make sure all the references are fine (e.g. if they refer to an image on another page, the style becomes paragraph number + page numer). For some sections this is a hideous amount of work (many, many images).
Is there a smarter way. I have been thinking about splitting and later rejoining a section. If I add pages to one section, the following sections are not damaged, after all.
What is the best way to do this?
Thanks in advance.

Best efficiently way to transform a large rows ResultSet to Vector

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