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.

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Views which are residing in application A 's side use many internal tables and one or two application B s table.
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Need data retrieval recommendations for the UK only please

Hey folks.
I just wanted to say that I had a problem with strange sounds off my hard disk, the lengthy restarts and problems waking up the computer after battery being empty and finally my hard disk died completely.
With 17 months under its belt this Hitachi 80GB hard disk ought not to have died but this happens. Sadly I was ABOUT to back up (isn't that always the way?) but had not managed (due to the problems) and so lost some EXTREMELY valuable data. ie photos (numbering 400 and about 600 others) of my grandfather who was taken into hospital for heart failure aged 91 on the VERY SAME DAY.
Now- I am NOT letting this hard disk go. I have been told by the kind but very slow (Apple took over a fortnight to send them a replacement disk and they had it for 16 days in the end- I went mad) folk who repaired it, it is the mechanism which failed and not the platters which melted or otherwise warped.
So- this means that the chances of data retrieval are high. BUT- I have had one quote from the firm they recommended and was told it could be as much as £1,300 on the slowest service. Now, as you will appreciate, there IS no value which can be placed on such precious things as memories of a loved one but SURELY there is a chance that someone here has knowledge of a more- erm- cost efficient method?
LOOOOONG story short: Can you recommend anyone in the UK area who does a good job retrieving data from what has been deemed a high probability recovery?
Anything I need to know about the subject? All I can tell you is that this WILL involve removing the platters from the mechanism and placing them to another, functioning one with the probability of needing to back up in the region of 20GB.
Your help in this is so very gratefully received. I am thankful you users are here to hold my hand on this.

Posted this under the correct header as well- 15 Powerbook. Resolved it myself- went on the net and just picked one. Was semi-successful and if you are needing info check it out- I have explained this there.

Data retrieval failed

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I didn't understand what real problem you have?
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Hey Christopher.
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I use LabView student Express 7 on a Windows XP system.
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PS: even if you are to late (after 25) post anyway!
Why:
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Thanks again!
Attachments:
BexusII_groundstation.vi ‏46 KB

I have a valid example data file attached to this thread.
If you open BEXTEST.bin in a hex-editor of your choice, you'll see the BEXUS as 42 45 58 55 53 and then the time as 00 28 09 etc.
I couldn't get Joe Guo's VI to work. It doesn't count packages correctly, and the time is not displayed correctly either.
The file was saved using a straight save to file VI.
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I have a spare T-junction, so I can hook into the balloon real-time data as we fly, in case anyone care to see if they can figure out why the latest version of Joe Guo's program is not displaying correctly.
I will monitor this
thread during and after flight to see if anyone can make it in time!
Thanks for the great effort!!
Attachments:
bextest.bin ‏53 KB

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Hi sai,
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Hi First of all you need to create a real time DTP once that is done go to RSRDA T-code and click on the Create Daemon
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BI 7.0 Question on RDA (Real Time Data Acquisition)

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SQLDatabase: Read a lot of data at once and process in memory or read the data when I need it?

I'm not sure how to approach this problem. I require a big chunk of data records from the SQL server. This chunk is based on variables, so I don't know before what records I need. I need to do a large series of calculations and each calculation requires one
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Should I:
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The datafetch seems to be slow, since it's reading hundred of thousands of lines into memory
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Firstly, if you can turn your whole calculation in to an SQL query (or a series of queries or a stored procedure) then do so. Databases are good at this stuff, and you or a DBA may be able to do a lot to improve the query if it's still too slow.
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I want to add image in column is it possible then how to add image in data base what data type we need to do

I want to add image in column is it possible then how to add image in data base what data type we need to give we required any casting please show me one example
jitendra

Hi again,
Several points that can help more:
1. If you are working with Dot.Net, then I highly recommend read the first link that you got! This is nice and simple coding. Another option is this link which is even better in my opinion:
http://www.dotnetgallery.com/kb/resource21-How-to-store-and-retrieve-images-from-SQL-server-database-using-aspnet.aspx
2. As i mention above both link use the column's type image. There are several other option of working with Files. In most of my applications architecture I find that it is better to use a column which let us use any type of file and not an image column.
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http://research.microsoft.com/apps/pubs/default.aspx?id=64525
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http://msdn.microsoft.com/library/hh461480
FileTables feature of SQL Server 2012
http://technet.microsoft.com/en-us/library/ff929144.aspx
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http://technet.microsoft.com/en-us/library/hh403405.aspx
Binary Large Object (Blob) Data (SQL Server)
http://technet.microsoft.com/en-us/library/bb895234.aspx
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* Very nice tutorial!
http://petermeinl.wordpress.com/2012/02/20/managing-blobs-using-sql-server-filestream-via-ef-and-wcf-streaming/
[Personal Site] [Blog] [Facebook]

At what point is PL/SQL cursor data retrieved?

Hi
This may sound like a silly question but since I am not entirely sure, I thought I'd ask.
In Oracle PL/SQL, do you know at what stage the query in a cursor is actually executed?
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Martin

When you use a for loop like that it implicitly opens the cursor at the start and closes it at the end of the loop.
But the SQL query in that cursor is actually "run" when the first implicit or explicit fetch is issued, and retrieves new rows for every subsequent fetch.
Of course, before rows can be retrieved there needs to be several other tasks.
There's a good description of the steps of SQL processing in this part of the documentation.
http://download.oracle.com/docs/cd/E11882_01/appdev.112/e10471/adfns_sqlproc.htm
PL/SQL implicitly declares a cursor for all SQL data manipulation statements, including queries that return only one row. For queries that return multiple rows, you can explicitly declare a cursor to process the rows individually.
A cursor is a handle to a specific private SQL area. In other words, a cursor can be thought of as a name for a specific private SQL area. A PL/SQL cursor variable enables the retrieval of multiple rows from a stored subprogram.Edited by: fsitja on Dec 15, 2009 1:03 AM

Data Retrieval speed from DIAdem Database using Data Finder Toolkit in LabVIEW

I have developed a LabVIEW code using NI Data Finder toolkit for extracting the data from the DIAdem. I have formed queries for extraction the data. But the data retrieval takes more time for extracting the data.
I have attached my LabVIEW code image along with this post. In that i have circled the VI "Results to Waveform", which is Data Finder toolkit VI which takes more time for extraction. From my Testing, query formation is taking only few millisecond to execute, but "Results to Waveform.vi" takes around 35 seconds. Also i want to execute similar kind of search for 5 times. Altogether it will taken around 1.5 mins to 2 mins for execution.
Is there any other alternative way of doing this search? Kindly help me in sorting this out.
Thanks,
Alagar
Solved!
Go to Solution.
Attachments:
Report Gen.JPG ‏91 KB

Hi Alagar,
You say that the "Results to Waveform.vi" takes "more" time, but what are you comparing this to? More than what? More than loading the contents of the same file with the TDMS VIs or with the Storage VIs? What file format are you loading data from after querying-- TDMS files, ASCII files, binary files?
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Brad Turpin
DIAdem Product Support Engineer
National Instruments

How to measure and plot RMS value of real time data?

hi
i need to measure and plot real time RMS value of EMG voltage. I made a VI. But I dont know why it didn't work. Can anyone please help me out? My VI is attached in 2013 and 2011 both version. One sample data is also attached. Thanks at advance.
Solved!
Go to Solution.
Attachments:
RMS.vi ‏47 KB
RMS_2011.vi ‏41 KB
Sample Data.docx ‏20 KB

You seem to select EMG voltage vs Angle(Z-axis). Is that really what you want? More resasonable would seem e.g. EMG voltage vs. time.
If you want to process the 3D (xyz data), you probably need to add some more math). Why are you taking the absolute value? RMS does not care about the sign anyway, right?
They you are trying an XY graph with a single point, because your Y value is only a single number. You need an equal number of points for Y.
Here's a quick modification that graph EMG(mV) vs. time(ms) and takes the RMS of the EMG data. See if this gives you some ideas.
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LabVIEW Champion . Do more with less code and in less time .
Attachments:
RMS_MOD.vi ‏18 KB

Real tough data retrieval - assistance needed

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