system.data.sqlite

Can anyone provide a C# example of SQLite "SetTimeout"?

I'm using SQLite (system.data.sqlite v. 1.0.60.0) on a Fluent NHibernate project. I have one program that writes to the DB, and another that reads from it. Occasionally, I get SQLITE_BUSY exceptions, and I need to fix this. I found several Google references to sqlite_busy_timeout, which (if I understand correctly) will cause SQLite to...

Displaying image in DataGridViewImageColumn [Winform] from Sqlite Database

I have a sqlite db from where i am retrieving images. I have to display those images into a windows datagrid. For binding , I have Class Called COntacts , given below namespace ContactManager.Core { public class Contacts { private long _id = 0; public long Id { get { return _id; } ...

SQLite db size too big.

I'm creating a DB using SQLite from .NET, and then inserting 1500 records (15 columns, only 3 with information). At this point the database file size is 73mb!! (huge for the amount of information involved). If I open SQLite Administrator, and do a Clear Database, it shrinks to only 142kb. What it's doing that? Anyway to avoid it? Eithe...

How to map small binary objects properly in SQLite/NHibernate combo (wrong type affinity)?

Trying to store property of C#/.NET type byte[] in SQLite. Here is my mapping: <class name="MyClass" lazy="false" table="MyTable"> <property name="MyProperty" type ="BinaryBlob" access="property" /> </class> In SQL server it works like a charm even without the explicit type="BinaryBlob" in the mapping. In SQLite I've tried various ...

System.Data.SQLite extension model

I want to implement a function for System.Data.SQLite in C#. Implementing the SQLiteFunction interface is easy (seen examples over the Internet). The question is where should I put the compiled code? Do I need the source to be compiled altogether with the System.Data.SQLite project? Do I have a better option, so that my functions will r...

Getting table schema doesn't seem to work with System.Data.SQLite

I'm using SQLite.NET to access my databases, and in one particular case, I need to get a table schema because it's application-specific. I've been looking through the SQLite.NET forum and google, and it seems very straightforward. If I have a table called MYTABLE, I should be able to do this: DataTable dt = Connection.GetSchema( SQLit...

ContextSwitchDeadlock Exception while inserting data to sqlite database

I have a Sqlite Database where I am enumerating my directory structure and inserting records into 5 different tables. Total Files + Folders count = 4000. Also there is nested loops. Can say all loops runs for 4000 times cummulative to insert the records. Earlier it was built with Sql Server where it was running absolutely fine. It was t...

C# Windows Forms + Windows 7 + System.Data.SQLite v.1.0.66.0 = crash?

Hey guys, I'm currently experiencing a very strange crash in Windows 7 in a C# Windows Forms application developed in Visual Studio 2008. The app - which works great in both XP and Vista - never really opens; instead, a "this application has caused an error and has stopped working". I made a dummy application with the following source-...

Database application with C#

Hello everyone, This is my first application with a database. I'm using SQLite and Visual Studio. I have the database added, but how do I store and retrieve information from it? I'm using System.Data.SQLite as the .NET wrapper. The wrapper obviously provides me with methods to create connections and execute queries, but is there an ea...

SQLite optimization

I consider to use SQLite in a desktop application to persist my model. I plan to load all data to model classes when the user opens a project and write it again when the user saves it. I will write all data and not just the delta that changed (since it is hard for me to tell). The data may contain thousands of rows which I will need to ...

FluentNhib + System.Data.SQLLite VS2010

I know this question has been posted here before, and I've trawled through as many answers as I could find, but I still can't get the simplest test in the world working. 1) I created my test and ensured it was working in in VS2008 and then opened the the solution in VS2010 (so it's all definlaty working, and all 3.5 code with all the as...

WCF Application "Unable to find assembly" for SQLite

Note: This is a solved problem, but I just spend 4 hours at this issue, so I wanted to share the solution. When I attempt to access a WCF service, the service never responds, and the event log shows the following: An unhandled exception occurred and the process was terminated. Application ID: DefaultDomain Process ID: ...

SQLite Insert very slow ??

I recently read about SQLite and thought i would give a try . But when i see insert 1 record it was okay . But when i was inserting 100 it takes 5 sec and as the record size increases and so the time . What could be wrong . i am SQLite Wrapper (system.data.SQlite) code sample dbcon = new SQLiteConnection(connectionString); dbcon.Open()...

Sqlite Transaction, syntax error. Insert and delete in same transaction

I have a list of items that I want to insert into the database but I do not want any duplicates. So I delete all the items and reinsert all. It's not the most efficient way but it's not many items so it works for me. But I get syntax error near "Insert". I do the following: DELETE FROM Settings WHERE Type = 'Extensions' INSERT INTO Sett...

SSIS and SQLite

hey guys i want to use a ssis task to generate daily sqlite dbs... the ssis job exports large amounts of data to sqlite. the problem i am facing is ssis opens and closes a transaction for every insert making this task painfully slow is there a way i can instruct ssis to open a transaction at the beginning of the task, perform thousands...

C# , SQLite - what is "Data Source cannot be empty. Use :memory: to open an in-memory database" why i get this

Hi , I recently converted my SQL Server database into SQLite db . But when I try to open my SQLite using .Open() it throw me this error Data Source cannot be empty. Use :memory: to open an in-memory database Edit: added connection string: ConnectionString = @"Data Source= D:\XXX.db;Version=3; connection = new SQLiteConnection(conn...