forum

Home / DeveloperSection / Forums / Sqlite Database Backup

Ask Question

Sqlite Database Backup

Ajay Kembale 2616 12-Jan-2016
I want to take backup of sqlite database in windows application(Visual Studio 2012).I am able to do it using Sqlite in mozila firefox addon manually.
But I want to implement it on a button click in windows form.I was trying following  code which errormessage 'BackupDatabase() does not exists in System.Data.SQLite.SQLiteConnection

I was looking for query in Sqlite but I couldnt find anything

public void takebackup()
        {
            da = new SQLiteDataAdapter();
            //con.Open();
            try
            {
                SQLiteConnection cnnIn = new SQLiteConnection("Data Source=test.db;foreign keys=True");
                SQLiteConnection cnnOut = new SQLiteConnection("Data Source=backup.db;foreign keys=True");
                cnnIn.Open();
                cnnOut.Open();
                cnnIn.BackupDatabase(cnnOut, "main", "main", -1, null, -1);
                cnnIn.Close();
                cnnOut.Close();
            }
            catch (Exception er)
            {
            }
            finally
            {
                //con.Close();
            }
        }
sqlite c#  winforms  sqlite3 
Updated on 27-May-2023
Ajay Kembale

Ajay Kembale

Follow

Can you answer this question?

Answer

2 Answers

Aryan Kumar

Aryan Kumar

27-May-2023

To backup an SQLite database, you have a few options. Here are two common methods:

1. Manual Backup:
  - Stop any processes or connections accessing the SQLite database to ensure data consistency.
  - Create a copy of the SQLite database file (.db file) by simply copying it to another location or renaming it. For example, you can use the following command in a terminal or file explorer:

    cp /path/to/original_database.db 
    /path/to/backup_location/backup_database.db

  - The copied file serves as the backup of your SQLite database. You can move it to a secure location or store it in a different storage medium for safekeeping.

2. Using SQLite Command-Line Shell:

  - Open the SQLite command-line shell by running the `sqlite3` command in your terminal or command prompt.

  - Connect to the SQLite database by specifying the database file path:

    sqlite3 /path/to/database.db

  - In the SQLite shell, execute the following command to create a backup:

    .backup /path/to/backup_location/backup_database.db

  - The `.backup` command creates a backup of the current database file at the specified location.

  - Exit the SQLite shell by typing `.exit`.

It's important to note that while these backup methods create a copy of the database file, they do not perform incremental or differential backups. For more comprehensive backup strategies, you may need to consider automating backups, scheduling regular backups, and utilizing backup utilities or third-party tools specifically designed for SQLite databases.

Remember to follow best practices for securing your backups, such as encrypting them if necessary, storing them in a separate location or medium, and testing the restoration process periodically to ensure the integrity of your backups.

Anupam Mishra

Anupam Mishra

13-Jan-2016
I have a one solution of this problem:
If you are storing database as a physical drive then you must be given a full path name. 
 In the following,  we have taking the same problem to implement on button click event in windows form. Here we have taken for source database is 'MyDatabase.db'(it's storing on local drive i.e. d ) and for backup we created 'backup.db'(It's also on local drive).Insertion operation is performed in 'mydatabase.db' database. Now, for checking backup is successfully or not  ?  so, we have taken a datagridview for displayng data in the 'backup.db' database .

using System;
using System.Data;
using System.Data.SQLite;
using System.Windows.Forms;
namespace SQLiteDemo
{
    public partial class Form1 : Form
    {
        private SQLiteConnection sql_con1 = new SQLiteConnection("Data
           Source=d:/MyDatabase.db;foreign keys=True");
        private SQLiteCommand sql_cmd;
        private SQLiteDataAdapter da;
        privateDataSet DS = newDataSet();
        privateDataTable DT = newDataTable();
 
        public Form1()
        {
            InitializeComponent();
            sql_con1.Open(); // creating table 
            string sql = " create table IF NOT EXISTS Student(name varchar(20), score int)";
            SQLiteCommand command = newSQLiteCommand(sql, sql_con1);
            command.ExecuteNonQuery();
        }
        publicvoid takebackup()
        {
            da = newSQLiteDataAdapter();
 
            try
            {
                SQLiteConnection cnnIn = newSQLiteConnection("Data Source=d:/MyDatabase.db;foreign                        keys=True");
                SQLiteConnection cnnOut = newSQLiteConnection("Data Source=d:/backup.db;foreign                          keys=True");
                cnnIn.Open();
                cnnOut.Open();
                cnnIn.BackupDatabase(cnnOut, "main", "main", -1, null, -1);
                MessageBox.Show("Succesfully backup");//displaying message if backup is successfully      cnnIn.Close();
                cnnOut.Close();
            }
            catch (Exception er)
            {
                Console.WriteLine(er);
            }
            finally
            {
                sql_con1.Close();
            }
        }
        publicvoid InsertData()
        { // for insuring backup is succcessfully or not
            SQLiteConnection sql_con = newSQLiteConnection("DataSource=d:/backup.db;foreign                         keys=True");
            try
            {
                sql_con.Open();
                sql_con1.Open();// Open a connection of MyDatabase for inserting data
                string sql1 = "insert into Student(name, score) values ('Anupam Mishra', 100)";
                SQLiteCommand command1 = newSQLiteCommand(sql1, sql_con1);
                command1.ExecuteNonQuery();
                sql_cmd = sql_con1.CreateCommand();
                string CommandText = "select * from  Student";
                da = newSQLiteDataAdapter(CommandText, sql_con);
                da.Fill(DT);
                dataGridView1.DataSource = DT;
               
            }
            catch (Exception ex)
            {
                MessageBox.Show("Exception is:"+ex);
            }
            finally
            {
                sql_con.Close();
                sql_con1.Close();
            }
        }
 // Calling on View button click
        privatevoid button1_Click(object sender, EventArgs e)
        {
            takebackup();
            InsertData();
 
        }
// calling on Close button click
         privatevoid button2_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}
 Output:
answer 516631301050843

MindStick Training

Liked By