SQLite GUI

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Introduction

This article describes how to create, insert, update SQLite database from GUI.

Description

SQLite GUI is a simple GUI for creating a new SQLite database and opening an existing SQLite database. It can also create, delete and update tables in the database. All the available tables in the database are shown. The records of various types including BLOB are displayed in the DataGridView. And the data in the DataGridView can be printed. The schema for all the available tables is displayed.

Dependencies

The SQLite.NET assembly is available here. Add the reference SQLite.Net.dll to the project and use the namespace Finisar.SQLite to work with SQLite.

Finisar.SQLite

Finisar.SQLite is an ADO.NET Data Provider for accessing SQLite-Databases using the .NET-Framework. In SQLite, a complete database is stored in a single disk file. SQLite is zero-configuration - no setup or administration needed. SQLite itself is "a small C library that implements a self-contained, embeddable, zero-configuration SQL database engine" (quoted from the sqlite.org Website). The Finisar.SQLite Data Provider is an easy way to use the SQLite-Database in .NET languages like C# and VB.NET.

Sample Code

try
{
      //Connection string 
      string connString = String.Format("Data Source={0};New=False;Version=3", DB_NAME);
      
      //Connecting database
      SQLiteConnection sqlconn = new SQLiteConnection(connString);
      
      //Open the connection
      sqlconn.Open();

      //Query
      string CommandText = "Select name from sqlite_master;";

      //SQLiteDataAdapter to fill the DataSet
      SQLiteDataAdapter dataAdapter = new SQLiteDataAdapter(CommandText, sqlconn);
      dataAdapter.Fill(ds);

      //Get the collection of rows from the DataSet
      DataRowCollection dataRowCol = ds.Tables[0].Rows;

      //Add the tables available in the DB to the combo box
      foreach (DataRow dr in dataRowCol)
      {
          tablecombobox.Items.Add(dr["name"]);
      }
      
      //Close the Connection
      sqlconn.Close();

}              
catch (SQLiteException sqlex)
{
    MessageBox.Show(sqlex.Message);
}

To Do

Update cannot be performed on table without primary key. The SelectCommand must also return at least one primary key or unique column. If none are present, an InvalidOperation exception is generated, and the commands are not generated. The alternative way is create select, insert and update command for that particular table. Refer to MSDN. It will be available in the next version of SQLite GUI.

History

• 10^th March, 2007: Initial post