How do I check if a table exist in sqllite and inster into it

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I want to check the existence of a table in SQLite and if the table exist I need to insert some values to that table .

I have tries the below code and its not inserting the values to the database

What I have tried:

try
            {
                sqlconnection = DBConnection.GetDBConnetion();
                sqlconnection.Open();
                string query = "SELECT name FROM sqlite_master WHERE type='table' AND name='Users';";
                SQLiteCommand cmd = new SQLiteCommand(query);
                cmd.CommandType = CommandType.Text;
                cmd.Connection = sqlconnection;
                cmd.ExecuteNonQuery();
                var result = cmd.ExecuteReader();
                if (result.HasRows)
                {      
                    try
                    {
                        if (result != null)
                        {
                            result.Close();
                        }

                        cmd.CommandText = "INSERT INTO [Users] (ID ) VALUES ( @ID  )";
                        cmd.Parameters.AddWithValue("@ID", 1);
                     

                    }
                    catch (Exception ex)
                    {
                        throw new Exception(ex.Message);
                    }
                }

Posted 16-Mar-21 21:15pm

john321a

Updated 17-Mar-21 0:10am

v5

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Maciej Los · Accepted Answer · 2021-03-16T21:35:00

You forgot to call the most important method: SqliteCommand.ExecuteNonQuery Method (Microsoft.Data.Sqlite) | Microsoft Docs[^]

C#

sqlconnection.Open();
string query = "SELECT name FROM sqlite_master WHERE type='table' AND name='Users';";
SQLiteCommand cmd = new SQLiteCommand(query);
cmd.CommandType = CommandType.Text;
cmd.Connection = sqlconnection;
cmd.ExecuteNonQuery(); //removed from here!
var result = cmd.ExecuteReader();
if (result.HasRows)
{      
	try
	{
		cmd.CommandText = "INSERT INTO [Users] (ID ,Name ,Password) VALUES ( @ID , @Name , @Password )";
		cmd.Parameters.AddWithValue("@ID", 1);
		cmd.Parameters.AddWithValue("@Name", 1);
		cmd.Parameters.AddWithValue("@Password", 1);
        cmd.ExecuteNonQuery(); //... and added here!