sqlite3

What is the best way to write a validation layer for SQLite

I'm using an ADO.net provider of SQLite. I want to steer around some of the "features" of SQLite, like allowing a string in an integer field and allowing a string longer than n in a field of type varchar(n). What is the best way to achieve this kind of validation? Stored procedures? triggers? I'm looking for a generic solution that appli...

warning: invalid receiver type +sqlite3

I am programming an Xcode iPhone app and utilizing sqlite. In an effort to delete all rows from a table, I receive the warning above when I build my code. Does anyone have any suggestions on how to fix this? Thanks - (void) deleteData { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, ...

Rails add_test_data migration

Hey Guys, Just working through the Agile Web Development with Rails book and near the closing chapters of the book I had to rollback the db a few times using db:migrate VERSION=0 followed by the db:migrate command. However upon bringing the database back from the ground up, the add_test_data migration fails to add the test entries to th...

Perl-SQLite3: Basic Question

I admit it's been a while since I've used Perl, but this has me stumped. Here's the issue: #!/usr/bin/perl use CGI::Carp qw(fatalsToBrowser); use DBI; print "Content-type: text/html\n\n"; print "<html><head><title></title></head></body>"; my $login = "[email protected]"; my $dbfile = "/var/www/shopsite-data/shopsite_db"; my $sql = qq`S...

SQLite Transaction not committing

For an application we are developing we need to read n rows from a table and then selectively update those rows based on domain specific criteria. During this operation all other users of the database need to be locked out to avoid bad reads. I begin a transaction, read the rows, and while iterating on the recordset build up a string...

changing image dynamically in iPhone application.

Hi, My problem is, I have table of names. And when I touch on each name, a new view should appear and image of corresponding name. For all the names only one view should be there and the image should change dynamically. Thank You. ...

Ruby "No Such File To Load - sqlite3" on OS X

I was trying to create a quick little script that would insert data into an SQLite db for me but I can't get past the first few steps. I have done "sudo gem install sqlite3-ruby", my Ruby version is 1.8.7 (I used the Ruby one click installer from rubyforge.org). My script is incredibly simple. It looks like this: #!/usr/bin/ruby -w re...

strange iphone sdk sqlite memory leak

Hi guys, I have a very strange memory leak problem, it seems that sqlite3_step is doing some nasty stuff :| I spent almost 4 hours trying to fix this but no luck till now :( Here it is the code: [dbList removeAllObjects]; sqlite3_stmt *statement = nil; const char *sql = "SELECT * FROM dbs ORDER by rowOrder;"; if (sqlite3_prepare_v2(d...

SQLite3 problem with nginx/passenger

Hi I'm trying to access my web app built with rails. But when I type the URL I get: 500 Internal Server Error If you are the administrator of this website, then please read this web application's log file to find out what went wrong. And in the log there's: /!\ FAILSAFE /!\ Mon Nov 23 10:56:03 -0500 2009 Status: 500 Internal Server ...

gem update sqlite3-ruby failed on Windows 7

This is the command I gave in command prompt: gem install sqlite3-ruby > sqlite3-ruby.txt This is the content of sqlite3-ruby.txt Successfully installed sqlite3-ruby-1.2.5-x86-mswin32 1 gem installed Installing ri documentation for sqlite3-ruby-1.2.5-x86-mswin32... Installing RDoc documentation for sqlite3-ruby-1.2.5-x86-msw...

Use of sqlite3_exec

I have the next SQLITE3 commands that generates a file with more than 60 million records: .mode csv .output matppp.csv select mat, ppp from matppp order by mat; .output stdout How can I include these commands into a C program using: sqlite3_exec(db, "..........", NULL, 0, &db_err); ? When I attempt to do it myself, the c program ...

username in sqlite3

I am using sqlite3 in a linux machine and I am getting the database without username and password. Can I set a username and password for the same? ...

How to bind text value to sqlite3 database in iphone

I am developing a app for a movie in which I need to fetch data from the database considering some constraints. It works perfectly on the first occasion, but when I try to fetch data 2nd time it throws a runtime exception( the app crashes).I have to bind 3 placeholders. 2 are text and 1 is integer type. Here's the code which I am using t...

Error running sqlite3 on ruby 1.9: undefined method 'changes'

Here is the error I'm getting. It just started out of the blue undefined method `changes' for #<SQLite3::Driver::FFI::Driver:0xa75235c> I'm using ruby 1.9.1p243 gem 1.3.5 rails 2.3.5 ffi 0.5.4 sqlite3 0.0.3 On ubuntu 9.10 desktop, but i've had the same problem 9.04 Anyone know what's causing this error? ...

Sqlite3 alternatives for iPhone

Are there any other database engines that could be used on the iPhone, besides sqlite3? Something like textDb is for PHP, single-file and no server. ...

Transparent SQLite Data Compression

I am looking for an existing solution for transparent SQLite 3 zlib compression using a custom VFS implementation and a custom IO methods implementation. Is anyone aware of an existing project that already does that, or will I have to roll my own? I vaguely remember seeing something similar a year ago, but can't find it anymore. ...

How can I access the last inserted row ID within a SQL script?

I'm using SQLite, and I have a table for properties, and a table for sub-properties. Each sub-property points to its parent using the fkPropertyId column. Right now, to create the initial database, I've got a script that looks something like this: INSERT INTO property VALUES(1,.....); INSERT INTO property VALUES(2,.....); INSERT INTO ...

SQLITE group by

I use the sql below in sqlite to group by time intervals. The first is group by day and the second group by hour: select strftime('%Y-%m-%dT%00:00:00.000', date_time),line, count() from entry group by strftime('%Y-%m-%dT%00:00:00.000', date_time) select strftime('%Y-%m-%dT%H:00:00.000', date_time),line, count() from entry group by str...

sqlite3 icu extention

Hi, I think sqlite3 very handy software on many situation. But I need ICU support for sort order. I red many documents at Internet. I gave up a few times to use sqlite, I deleted the my downloads. But I need sqlite again and again. Is it so difficult to create an extension for download? Where can I find a ready to use extension? Please h...

Read datetime back from sqlite as a datetime in Python

I'm using the sqlite3 module in Python 2.6.4 to store a datetime in a SQLite database. Inserting it is very easy, because sqlite automatically converts the date to a string. The problem is, when reading it it comes back as a string, but I need to reconstruct the original datetime object. How do I do this? ...