mysql测试记录

一直觉得mysql的Memony内存引擎挺好，其他数据库都没有，正好有空，所以试试。

版本：mysql-installer-community-8.0.17.0

os：windows10 SSD硬盘，本机访问

简单表，一个ID字段为主键，一个字符串字段

1. Memony引擎

单条插入10000条耗时18s，批量事务提交插入10000条耗时18s。

2. Myisam引擎

单条插入10000条耗时19s，批量事务提交插入10000条耗时19s。

3. InnoDB引擎

单条插入10000条耗时40s，批量事务提交插入10000条耗时2s。

 private void button1_Click(object sender, EventArgs e)
        {
            //删除
            DateTime d = DateTime.Now;
            string sql = "delete from " + this.textBox1.Text;
            MySqlConnection cn = new MySqlConnection(this.connstring);
            cn.Open();
            MySqlCommand cmd = new MySql.Data.MySqlClient.MySqlCommand(sql, cn);
            cmd.ExecuteNonQuery();
            cn.Close();

            this.textBox2.Text = (DateTime.Now - d).TotalMilliseconds.ToString();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            //单条增加
            DateTime d = DateTime.Now;
            MySqlConnection cn = new MySqlConnection(this.connstring);
            cn.Open();
            string sql = "insert into " + this.textBox1.Text + "(a,v) values({0}, '{1}')";
            for (int m = 0; m < 10000; m++)
            {
                string s = string.Format(sql, m, System.Guid.NewGuid().ToString() + "在");
                MySqlCommand cmd = new MySql.Data.MySqlClient.MySqlCommand(s, cn);
                cmd.ExecuteNonQuery();
            }
            cn.Close();

            this.textBox2.Text = (DateTime.Now - d).TotalMilliseconds.ToString();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            //单条增加
            DateTime d = DateTime.Now;
            MySqlConnection cn = new MySqlConnection(this.connstring);
            cn.Open();
            MySqlTransaction tran = cn.BeginTransaction();
            string sql = "insert into " + this.textBox1.Text + "(a,v) values({0}, '{1}')";
            for (int m = 0; m < 10000; m++)
            {
                string s = string.Format(sql, m, System.Guid.NewGuid().ToString() + "在");
                MySqlCommand cmd = new MySql.Data.MySqlClient.MySqlCommand(s, cn);
                cmd.Transaction = tran;
                cmd.ExecuteNonQuery();
            }
            tran.Commit();
            cn.Close();
            this.textBox2.Text = (DateTime.Now - d).TotalMilliseconds.ToString();
        }

        private void button4_Click(object sender, EventArgs e)
        {
            //查询
            MySqlDataAdapter da = new MySqlDataAdapter("select * from " + this.textBox1.Text, this.connstring);
            DataSet ds = new DataSet();
            da.Fill(ds, "t");
            this.dataGridView1.DataSource = ds.Tables[0].DefaultView;
        }

下面N多年前的测试，可做对比：

https://www.cnblogs.com/81/archive/2009/07/31/1535694.html

https://www.cnblogs.com/81/archive/2008/12/06/1348896.html

感觉mysql不是太高