如何从Oracle数据库的select中将数据输入MySql数据库？

Question

我已经阅读了很多与此有关的问题，但找不到能批量插入的问题。

我使用以下代码从Oracle数据库插入到MySQL数据库中：

选择数据：

public DataTable GetDataTableLayout(string tableName)
        {
            DataTable table = new DataTable();
            var connectionString = @"";

            using (OracleConnection connection = new OracleConnection(connectionString))
            {
                connection.Open();
                string query = $"select ID, EVENTO, DT_EVENTO, cd_categoria_abrasce, nm_categoria_abrasce from BI_STG.STG_CRM_CATEGORIA_ABRASCE";
                using (OracleDataAdapter adapter = new OracleDataAdapter(query, connection))
                {
                    adapter.Fill(table);
                };
            }
            return table;
        }

插入数据：

        public void BulkInsertMySQL(DataTable table, string tableName)
        {
            var connectionString = @"";
            using (MySqlConnection connection = new MySqlConnection(connectionString))
            {
                connection.Open();

                using (MySqlTransaction tran = connection.BeginTransaction(IsolationLevel.Serializable))
                {
                    using (MySqlCommand cmd = new MySqlCommand())
                    {
                        cmd.Connection = connection;
                        cmd.Transaction = tran;
                        cmd.CommandText = $"INSERT INTO clog_crm_categoria_abrasce" + 
                        "(ID, EVENTO, DT_EVENTO, cd_categoria_abrasce, nm_categoria_abrasce)" + 
                        "VALUES (ID, EVENTO, DT_EVENTO, cd_categoria_abrasce, nm_categoria_abrasce) from BI_STG.STG_CRM_CATEGORIA_ABRASCE";

                        using (MySqlDataAdapter adapter = new MySqlDataAdapter(cmd))
                        {
                            adapter.UpdateBatchSize = 1000;
                            using (MySqlCommandBuilder cb = new MySqlCommandBuilder(adapter))
                            {
                                cb.SetAllValues = true;
                                adapter.Update(table);
                                tran.Commit();
                            }
                        };
                    }
                }
            }