Question

我正在编写一个Windows窗体应用程序来备份我的SQL Server数据库。我使用以下代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.SqlClient;

namespace SQL_Server_DB_Backup_and_Restore
{
    public partial class Form1 : Form
    {
        private SqlConnection conn;
        private SqlCommand command;
        private SqlDataReader reader;
        string sql = "";
        string connectionString = "";

        public Form1()
        {
            InitializeComponent();
        }

        private void btnBrowse_Click(object sender, EventArgs e)
        {
            FolderBrowserDialog dlg = new FolderBrowserDialog();

            if(dlg.ShowDialog()==DialogResult.OK)
            {
                txtBackupFileLocation.Text = dlg.SelectedPath;
            }
        }

        private void btnConnect_Click(object sender, EventArgs e)
        {
            try
            {
                connectionString = "Data Source= " + txtDataSource.Text + "; User Id=" + txtUserId.Text + "; Password=" + txtPassword.Text + "";
                conn = new SqlConnection(connectionString);
                conn.Open();
                //sql = "EXEC sp_databases";
                sql = "SELECT * FROM sys.databases d WHERE d.database_id>4";
                command = new SqlCommand(sql, conn);
                reader = command.ExecuteReader();
                cmbDatabases.Items.Clear();

                while(reader.Read())
                {
                    cmbDatabases.Items.Add(reader[0].ToString());
                }

                txtDataSource.Enabled = false;
                txtUserId.Enabled = false;
                txtPassword.Enabled = false;
                btnConnect.Enabled = false;
                btnDisconnect.Enabled = true;

                btnBackup.Enabled = true;
                btnRestore.Enabled = true;
                cmbDatabases.Enabled = true;
            }

            catch(Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void btnDisconnect_Click(object sender, EventArgs e)
        {
            txtDataSource.Enabled = true;
            txtUserId.Enabled = true;
            txtPassword.Enabled = true;
            cmbDatabases.Enabled = false;
            btnBackup.Enabled = false;
            btnRestore.Enabled = false;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            btnDisconnect.Enabled = false;
            cmbDatabases.Enabled = false;
            btnBackup.Enabled = false;
            btnRestore.Enabled = false;
        }

        private void btnBackup_Click(object sender, EventArgs e)
        {
            try
            {
                if(cmbDatabases.Text.CompareTo("")==0)
                {
                    MessageBox.Show("Please select a database");
                    return;
                }
                conn = new SqlConnection(connectionString);
                conn.Open();
                sql = "BACKUP DATABASE " + cmbDatabases.Text + " TO DISK = '" + txtBackupFileLocation.Text + "\\" + cmbDatabases.Text + "-" + DateTime.Now.Ticks.ToString() + ".bak'";
                command = new SqlCommand(sql, conn);
                command.ExecuteNonQuery();
                MessageBox.Show("Database backup is completed successfully");
            }
            catch(Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }
    }

现在我必须按一个按钮进行备份。如何自动化流程以便我的应用程序可以每周进行备份？

Answer 1

MS SQL Server具有自动执行/计划数据库备份的功能。在对象资源管理器上。转到

管理 - ＆gt;维护计划 - ＆gt;新的维护计划
并在维护计划任务上拖动备份数据库任务然后单击上面的日历图标以设置备份时间。这适用于上面的SQL Server 2008。

在C＃中自动执行SQL Server备份

1 个答案: