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  • How to remove "Standard Error" column from xtable() output of an lm on R/RSweave/LaTeX

    - by Lucas Spangher
    I'm currently doing some data analysis on population data, so reporting the standard errors in the tables of parameter coefficients just doesn't really make statistical sense. I've done a fair bit of searching and can't find any way to customize the xtable output to remove it. Can anyone point me in the right direction? Thanks a lot, I didn't post this lightly; if it's something obvious, I apologize for having wasted time!

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  • How to use pg_restore, getting error

    - by Roland
    I made a dump of a postgres database and I want to create the database on my localmachine. I'm trying to use pg_restore My command pg_restore db.sql and then I get this error pg_restore: [archiver] input file does not appear to be a valid archive What am I doing wrong? Operating sytem Ubuntu 9.10

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  • Passing around a SqlConnection

    - by Chris
    I have created a TransactionScope and within the scope various items are created and updated in the database. During this process I make a lot of calls to the database. Originally I opened a SqlConnection in the beginning of the TransactionScope and passed it around to any function that made a DB call then I closed the connection after all the calls are made and before the transaction commits. Is it better to do this or to open and close a connection for each call?

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  • Maintain case sensitivity when importing db into windows

    - by razass
    I have an export from a MYSQL database on a linux machine however when importing that database into MYSQL on windows all of the table names that were camel cased are now all lower case. The sql dump has the correct case in it but the importing via phpmyadmin seams to remove these. How can I import it and keep the case? Thanks

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  • Ignore first line on csv parse Rails

    - by Jack
    Hi, I am using the code from this tutorial to parse a CSV file and add the contents to a database table. How would I ignore the first line of the CSV file? The controller code is below: def csv_import @parsed_file=CSV::Reader.parse(params[:dump][:file]) n = 0 @parsed_file.each do |row| s = Student.new s.name = row[0] s.cid = row[1] s.year_id = find_year_id_from_year_title(row[2]) if s.save n = n+1 GC.start if n%50==0 end flash.now[:message] = "CSV Import Successful, #{n} new students added to the database." end redirect_to(students_url) end

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  • help req for subsonic

    - by Muhammad Afaq Toufiq
    i m using subsonic with sqlserver its working fine. now my boss say donnt use sqlserver use Oracle database in app config For sqlserver -- now wat changes for oracle database req in app.cof ??? plz help me thanx in advance.

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  • SQL Design Question regarding schema and if Name value pair is the best solution

    - by Aur
    I am having a small problem trying to decide on database schema for a current project. I am by no means a DBA. The application parses through a file based on user input and enters that data in the database. The number of fields that can be parsed is between 1 and 42 at the current moment. The current design of the database is entirely flat with there being 42 columns; some have repeated columns such as address1, address2, address3, etc... This says that I should normalize the data. However, data integrity is not needed at this moment and the way the data is shaped I'm looking at several joins. Not a bad thing but the data is still in a 1 to 1 relationship and I still see a lot of empty fields per row. So my concerns are that this does not allow the database or the application to be very extendable. If they want to add more fields to be parsed (which they do) than I'd need to create another table and add another foreign key to the linking table. The third option is I have a table where the fields are defined and a table for each record. So what I was thinking is to make a table that stores the value and then links to those two tables. The problem is I can picture the size of that table growing large depending on the input size. If someone gives me a file with 300,000 records than 300,000 x 40 = 12 million so I have some reservations. However I think if I get to that point than I should be happy it is being used. This option also allows for more custom displaying of information albeit a bit more work but little rework even if you add more fields. So the problem boils down to: 1. Current design is a flat file which makes extending it hard and it is not normalized. 2. Normalize the tables although no real benefits for the moment but requirements change. 3. Normalize it down into the name value pair and hope size doesn't hurt. There are a large number of inserts, updates, and selects against that table. So performance is a worry but I believe the saying is design now, performance testing later? I'm probably just missing something practical so any comments would be appreciated even if it’s a quick sanity check. Thank you for your time.

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  • applescript for sqlite

    - by user1212108
    I have a Windows app called via Shell from MS Word that reads and writes to Sqlite. I'm porting it to Mac. On windows I have a batch file: SQLite3.exe pathtodb\databasename <sqlitecommands.txt This batch calls the Sqlite command line program, attachs the database, and reads the command from sqlitecommands.txt. The sqlitecommands is dynamically modified(by Word VBA) to read (Select) Write (Update) to/from the database. What is the format of an applescript to do the same thing in Mac OSX?

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  • Android: SQLite content accessing error

    - by vnshetty
    I've following code, it gives run time error as below... why? try{ String myPath = DB_PATH + DB_NAME; mDB = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY); }catch(SQLiteException e){} Runtime Error: :sqlite returned: error code = 1, msg = no such table: android_metadata :SELECT locale FROM android_metadata failed :Failed to setLocale() when constructing, closing the database :android.database.sqlite.SQLiteException: no such table: android_metadata

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  • How to handle form data in cakephp

    - by Vinay
    i have a form for adding people object ,i want to add as many people without saving people in database,after clicking add people form submit button,the same form should appear without saving the form data to database,instead it should save to the session.please explain in detail if possible with the help of a example to do this, i have not found any tutorial which explains cakephp session in detail.

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  • Unable to install or run the application. The application requires stdole Version 7.0.3300.0 in the

    - by proudgeekdad
    Our ClickOnce application is reporting "Unable to install or run the application. The application requires stdole Version 7.0.3300.0 in the GAC" when one user tries to run the application. It's interesting to note that the GAC (c:\windows\asssembly) does not have stdole installed in it. Any ideas how to get it there? We are using .NET 3.5 and it has been installed on this computer.

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  • sqlite eatingup memory on iPhone when doing insert

    - by kviksilver
    I am having problem with inserting data to sqlite database. char *update="INSERT OR REPLACE INTO ct_subject (id,id_parent, title, description, link, address, phone, pos_lat, pos_long, no_votes, avg_vote, photo, id_comerc, id_city, placement, type, timestamp, mail) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?);"; sqlite3_stmt *stmt; if(sqlite3_prepare_v2(database, update, -1, &stmt, nil) == SQLITE_OK){ sqlite3_bind_int(stmt, 1, [[[newCategories objectAtIndex:i] valueForKey:@"id"] intValue]); sqlite3_bind_int(stmt, 2, [[[newCategories objectAtIndex:i] valueForKey:@"id_parent"] intValue]); sqlite3_bind_text(stmt, 3, [[[newCategories objectAtIndex:i] valueForKey:@"title"] UTF8String], -1, NULL); sqlite3_bind_text(stmt, 4, [[[newCategories objectAtIndex:i] valueForKey:@"description"] UTF8String], -1, NULL); sqlite3_bind_text(stmt, 5, [[[newCategories objectAtIndex:i] valueForKey:@"link"] UTF8String], -1, NULL); sqlite3_bind_text(stmt, 6, [[[newCategories objectAtIndex:i] valueForKey:@"address"] UTF8String], -1, NULL); sqlite3_bind_text(stmt, 7, [[[newCategories objectAtIndex:i] valueForKey:@"phone"] UTF8String], -1, NULL); sqlite3_bind_text(stmt, 8, [[[newCategories objectAtIndex:i] valueForKey:@"pos_lat"] UTF8String], -1, NULL); sqlite3_bind_text(stmt, 9, [[[newCategories objectAtIndex:i] valueForKey:@"pos_long"] UTF8String], -1, NULL); sqlite3_bind_int(stmt, 10, [[[newCategories objectAtIndex:i] valueForKey:@"no_votes"] intValue]); sqlite3_bind_text(stmt, 11, [[[newCategories objectAtIndex:i] valueForKey:@"avg_vote"] UTF8String], -1, NULL); if ([[[newCategories objectAtIndex:i] valueForKey:@"photo"] length]!=0) { NSMutableString *webUrl = (NSMutableString *)[[NSMutableString alloc] initWithString:@"http://www.crotune.com/public/images/subjects/"]; [webUrl appendString:[[newCategories objectAtIndex:i] valueForKey:@"photo"]]; UIImage *myImage = [self getWebImage:webUrl]; if(myImage != nil){ sqlite3_bind_blob(stmt, 12, [UIImagePNGRepresentation(myImage) bytes], [UIImagePNGRepresentation(myImage) length], NULL); } else { sqlite3_bind_blob(stmt, 12, nil, -1, NULL); } [webUrl release]; [myImage release]; } else { sqlite3_bind_blob(stmt, 12, nil, -1, NULL); //NSLog(@" ne dodajem sliku2"); } sqlite3_bind_int(stmt, 13, [[[newCategories objectAtIndex:i] valueForKey:@"id_comerc"] intValue]); sqlite3_bind_int(stmt, 14, [[[newCategories objectAtIndex:i] valueForKey:@"id_city"] intValue]); sqlite3_bind_int(stmt, 15, [[[newCategories objectAtIndex:i] valueForKey:@"placement"] intValue]); sqlite3_bind_int(stmt, 16, [[[newCategories objectAtIndex:i] valueForKey:@"type"] intValue]); sqlite3_bind_int(stmt, 17, [[[newCategories objectAtIndex:i] valueForKey:@"timestamp"] intValue]); sqlite3_bind_text(stmt, 18, [[[newCategories objectAtIndex:i] valueForKey:@"mail"] UTF8String], -1, NULL); } if (sqlite3_step(stmt) != SQLITE_DONE) { NSLog(@"%s", sqlite3_errmsg(database)); NSAssert1(0,@"nemogu updateat table %s", errorMsg); } else { NSLog(@"Ubacio %d",i); }sqlite3_finalize(stmt); What happens is that it starts to eat memory until it finaly quits... On memory warning i close and open database again, I have set cache size to 50 as mentioned in some posts here, and tried putting query into statement - same result.. it just garbles mamory and app quits after 300 inserts on iphone or somewhere around 900 inserts on iPad... Any help would be appreciated..

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  • Managing trace files on Sql Server 2005

    - by Sophtware
    I need to manage the trace files for a database on Sql Server 2005 Express Edition. The C2 audit logging is turned on for the database, and the files that it's creating are eating up a lot of space. Can this be done from within Sql Server, or do I need to write a service to monitor these files and take the appropriate actions? I found the [master].[sys].[trace] table with the trace file properties. Does anyone know the meaning of the fields in this table?

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  • Entity Framework 4 omits some associations during model generation

    - by kzen
    After creating an EF4 model from a SQL Server database I noticed that all the relationships of my Users table were not imported into the model as associations. All the other relationships were imported fine. My Users table has a PK userId which is a char(7) field and it is integrated into several other tables in the database as an FK but for some reason EF4 does not import these relationships as associations during the model generation process... Does anyone have any ideas why this would be happening?

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  • Alternatives of Datatable

    - by mavera
    In my web application, I have a dynamic query that returns huge data to datatable, and this query is often recalled with different parameters. So database is exhausted. I want to get all record with no parameters to an object, and perform queries (may be with linq) on this object. So database will not be exthausted. Which objects can be used instead of datatable?

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  • Simplest way of persisting Java Objects using Apache Camel ?

    - by sanre6
    Can JDBC component be used for inserting Java objects into a Mysql database ? I want to store Java objects that i am routing through message exchanges into a database using spring xml . i have never used hibernate before , so cannot use the hibernate or JPA components Ex Code : <from uri="bean:MessageProducer?method=send" /> /* bean sending the objects */ /* what code do i need to write for insertion of these Objects into testdb */ <to uri="jdbc:testdb"/>

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  • How to evaluate the string in ruby if the string contains ruby command?

    - by Arun
    In my case, I was storing the sql query in my database as text. I am showing you one record which is present in my database Query.all :id => 1, :sql => "select * from user where id = #{params[:id]}" str = Query.first Now 'str' has value "select * from user where id = #{params[:id]}" Here, I want to parsed the string like If my params[:id] is 1 then "select * from user where id = 1" I used eval(str). Is this correct?

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  • Data access layer using Linq to SQL

    - by Andrei Tanasescu
    I am building a c# - linq - sql server winforms/asp.net application, accessing a database. I would like my business logic layer to be easily testable, and that means not littering it with Linq database queries everywhere. What design patterns/ best practices are available for the following use cases - inserting/updating a new object - searching for an object - loading a bunch of related data into a sort of "presentation" object that could be displayed by various views ?

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  • Sending messages between two Python servers

    - by Will
    I have two servers - one Django, the other likely to be written in Python - and one is putting 'tasks' into a database and another is processing these tasks. They share a database, but I want the processor to react quickly to new tasks rather than polling periodically. Are there any straightforward ways for two Python servers to talk to one another, or does the task processor have to have web-hooks or something? It feels there ought to be a blessed way to do this...

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  • SQL most executed query?

    - by Esabe
    Hi everyone, I have a database in SQL Server 2008, and there are a lot of machines making queries against it. I know there is a SQL Server profiler, but I don't know very well how to use it. Is there any way to know what are the most common queries executed in the database? Through the profiler or not, it doesn't matter. Thank you very much in advance!

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