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• How to get the number of columns from a JDBC Resultset?

  - by Sanoj

  I am using CsvJdbc (it is a JDBC-driver for csv-files) to access a csv-file. I don't know how many columns the csv-file contains. How can I get the number of columns? Is there any JDBC-function for this? I can not find any methods for this in java.sql.Resultset. For acessing the file, I use code similar to the example on the CsvJdbc website.

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• How can my iphone app detect it's own version number?

  - by cmos

  I'm writing an iPhone app. It's already been published, but I would like to add a feature where it's version number is displayed. I'd rather not have to do this manually with each version I release.. Is there a way in objective C to find out what the version is of my app?

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• Minimum number of swaps needed to change Array 1 to Array 2?

  - by Adam

  For example, input is Array 1 = [2, 3, 4, 5] Array 2 = [3, 2, 5, 4] Minimum number of swaps needed are 2. The swaps need not be with adjacent cells, any two elements can be swapped.

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• JPA: How do I get a scalar result of type Long-- not BigNumber-- from Oracle NUMBER?

  - by rektide

  The default mapping from an Oracle NUMBER value is into BigNumber... How can I get a scalar result query to return a Long instead?

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• How do I get the number of visible characters from a UTF-8 encoded char*?

  - by Bill

  I have a UTF-8 encoded char*. Is there a standard function to calculate the number of visible characters represented by the byte array? I'm on Red Hat (RHEL 5).

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• How to determine expected license serial number by viewing an EXE File?

  - by Steve

  I was attempting to install an exe that requires a serial number before the install, which the vendor has not provided to us yet. This got my wheels turning about whether there is any information that can be gained from viewing an exe using a hex editor/VI/etc? Using VI to view an exe, I can see some sections of plain text, but it is difficult to determine what it refers to without any context around it. Is it possible to determine any information by reading an exe? Thanks

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• How to create dynamic number of output files with SSIS?

  - by JSacksteder

  I will be creating flatfiles and based on the data in the batch, it might be necessary to split the data into an undetermined number of files. I can make the connection string dynamic with an expression, but that is only evaluated when the package starts. I'd like to change that expression to include a '-a' or '-b' in the filename. Alternately, if I have to create new connection manager objects at run time on demand, how do I go about that?

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• Find out the number of digits of min/max values of an integral type at compile time

  - by Checkers

  Is there a way to find out the number of digits of min/max values of an integral type at compile time so that it's suitable to be placed as a template parameter? Ideally, there will be an existing solution in, for example, Boost MPL. Failing that I'm looking for some pointers for a hand-coded solution.

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• How can I count the number of elements of a given value in a matrix?

  - by niko

  Does anyone know how to count the number of times a value appears in a matrix? For example, if I have a 1500 x 1 matrix M (vector) which stores the values of weekdays (1 - 7), how could I count how many Sundays (1), Mondays(2), ... , Saturdays(7) are stored in M?

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• What is the minimum number of socket port(s) required for a TCP server?

  - by Gwilym

  Hey SO Doing a some practice questions for exam tomorrow can't figure out this one What is the minimum number of socket port(s) required for a TCP server to connect a TCP client for communication? Surely its just two right? one for the server one for the client, but this seems to obvious. My mates thinks TCP uses two ports at the server end for for data in and one for data out. thanks in advance

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• For a Chemical Equation Balancer App (Android), how do I count the number of atoms of each element in each term?

  - by Upas

  This is my app: If someone enters "C6H12O6+O2=CO2+H2O", then I have already written code to split the equation into terms, so in an ArrayList called rterms I have the strings: C6H12O6 CO2 and in another ArrayList called pterms, I have: CO2 H2O I need to count the number of C's in each term of the reactants, so 6 for term 1, 0 for term 2, and then the H's and then O's. How would I do this? Any help is appreciated.

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• how to limit the number of emails to send per tick cycle of the timer . in asp.net windows applicati

  - by Ranjana

  how to limit the number of emails to send per tick cycle of the timer . in asp.net windows application ??????????????

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• Is there a way to reliably detect the total number of CPU cores?

  - by John Sheares

  I need a reliable way to detect how many CPU cores are on a computer. I am creating a numerically intense simulation C# application and want to create the maximum number of running threads as cores. I have tried many of the methods suggested around the internet like Environment.ProcessorCount, using WMI, this code: http://blogs.adamsoftware.net/Engine/DeterminingthenumberofphysicalCPUsonWindows.aspx. None of them seem to think a AMD X2 has two cores. Any ideas?

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• How can I calculate the number of lines changed between two commits in git?

  - by Mike

  Is there any easy way to calculate the number of lines changed between two commits in git? I know I can do a git diff, and count the lines, but this seems tedious. I'd also like to know how I can do this, including only my own commits in the linecounts.

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• How to get the number of rows in a table in a Datastore?

  - by Aftershock

  Hi, In many cases, it could be useful to know the number of a row in a table (a kind) in a datastore using Google Application Engine. There is not clear and fast solution . At least I have not found one.. Have you?

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• How to prove worst-case number of inversions in a heap is O(nlogn)?

  - by Jacques

  I am busy preparing for exams, just doing some old exam papers. The question below is the only one I can't seem to do (I don't really know where to start). Any help would be appreciated greatly. Use the O(nlogn) comparison sort bound, the theta(n) bound for bottom-up heap construction, and the order complexity if insertion sort to show that the worst-case number of inversions in a heap is O(nlogn).

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• Is there a regex flavor that allows me to count the number of repetitions matched by the * and + ope

  - by luvieere

  Is there a regex flavor that allows me to count the number of repetitions matched by the * and + operators? I'd specifically like to know if it's possible under the .NET Platform.

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• How to generate unique serial number of machine in Delphi?

  - by noxwow

  Hi, I have question how to generate unique serial number of machine in Delphi? I tried to do this using the ID the motherboard or processor, but unfortunately it's unfortunately supported. Partition serial numbers, etc. fall off, because it is changing after the formatted. I'm looking for something that doesn't change after the formatted. Has anyone any idea?

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• way to fix number of concurrent sessions allowed at app level. django

  - by laspal

  Hi, How can I fix number of concurrent sessions allowed at app level? Basically I want a limit to how many concurrent requests to this url to keep the server from getting congested. I guess some middleware hack? Thanks.

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• Why file upload error codes in php miss number '5'?

  - by Majid

  I am writing a custom error handling/reporting function for php file upload and I noticed that the error codes returned is one of numbers 0 to 8 except 5. Is this a typo in the source I am using or is it really this way? And if it is so, I am curious why they have skipped number '5'. Thanks.

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• How to get number of entries in a Lua table?

  - by romkyns

  Sounds like a "let me google it for you" question, but somehow I can't find an answer. The Lua # operator only counts entries with integer keys, and so does table.getn: tbl = {} tbl["test"] = 47 tbl[1] = 48 print(#tbl, table.getn(tbl)) -- prints "1 1" count = 0 for _ in pairs(tbl) do count = count + 1 end print count -- prints "2" How do I get the number of all entries?

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• How to display "number of items" in a tableview?

  - by Garry

  Hi, What's the best way to implement showing a number in a small circle on a UITableView row, much like is seen on the 'Inbox' row in the image below? Thanks,

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• In SQL Server, how can I separate a large number of tsql statement into batches?

  - by Yousui

  Hi guys, In SQL Server, how can I separate a large number of tsql statement into batches? Should I use the GO statement in stored procedures or functions? Should I use the GO statement in explicit transaction management situation(between BEGIN TRANSACTION and ROLLBACK TRANSACTION or COMMIT TRANSACTION)? Are there some best practice about this topic? Great thanks in advance.

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• Cursorfetch: The number of variables declared in the INTO list must match that of selected columns.

  - by Anilkumar

  while inserting into temp table inside a cursor am getting this error Cursorfetch: The number of variables declared in the INTO list must match that of selected columns.

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• Mysql: Order Results by number of matching rows in Second Table.

  - by KyleT

  I'm not sure the best way to word this question so bear with me. Table A has following columns: id name description Table B has the following columns: id a_id(foreign key to Table A) ip_address date Basically Table B contains a row for each time a user views a row from Table A. My question is how do I sort Table A results, based on the number of matching rows in Table B. i.e SELECT * FROM TableA ORDER BY (SELECT COUNT(*) FROM TableB where TableB.a_id = TableA.id) Thank you!

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