用OracleDataAdapter将DataTable写入Oracle数据库

今天用OracleDataAdapter把DataTable写入数据库研究了一天啊，头都晕了，老是报错：ORA-01008: 并非所有变量都已绑定,.........................现在好了，原来是OracleParameter少写了最后一项数据源列名，现将成果展示如下：

using System; using System.Configuration; using System.Data; using System.Data.OracleClient; using System.Collections; ...... ...... ......      public static int ExecuteDataTable(DataTable dt)         {             //创建一个连接对象             using (OracleConnection connection = new OracleConnection(ConnectionString))             {                 OracleDataAdapter OracleAdapter = new OracleDataAdapter();                 //#region  查询                 //OracleAdapter.SelectCommand = new OracleCommand();                 //OracleAdapter.SelectCommand.CommandType = CommandType.Text;                 //OracleAdapter.SelectCommand.CommandText = "SELECT JSDM,JSMC,JSMS,SCBS,JSLXDM FROM HT_YHJS  ";                 //OracleAdapter.SelectCommand.Connection = connection;                 //#endregion                 ////////////////////////////////////////////////////////////////////////////                 #region  添加                 string insertSql = "INSERT INTO HT_YHJS (JSDM,JSMC,JSMS,JSLXDM) VALUES (:JSDM,:JSMC,:JSMS,:JSLXDM)";                 OracleAdapter.InsertCommand = new OracleCommand();                 OracleAdapter.InsertCommand.CommandType = CommandType.Text;                 OracleAdapter.InsertCommand.CommandText = insertSql;                 OracleParameter[] insertParms = {                     new OracleParameter(":JSDM", OracleType.VarChar, 6, "JSDM"),                        new OracleParameter(":JSMC", OracleType.VarChar, 20, "JSMC"),                        new OracleParameter(":JSMS", OracleType.VarChar, 120, "JSMS"),                     new OracleParameter(":JSLXDM", OracleType.Char, 10, "JSLXDM")                    };                 OracleAdapter.InsertCommand.Parameters.AddRange(insertParms);                 OracleAdapter.InsertCommand.Connection = connection;                 #endregion                 #region  更新                 string updateSql = "UPDATE HT_YHJS SET JSMC=:JSMC, JSMS=:JSMS, JSLXDM=:JSLXDM WHERE JSDM=:JSDM";                 OracleAdapter.UpdateCommand = new OracleCommand();                 OracleAdapter.UpdateCommand.CommandType = CommandType.Text;                 OracleAdapter.UpdateCommand.CommandText = updateSql;                 OracleParameter[] updateParms = {                        new OracleParameter(":JSMC", OracleType.VarChar, 20 , "JSMC"),                       new OracleParameter(":JSMS", OracleType.VarChar, 120, "JSMS"),                     new OracleParameter(":JSLXDM", OracleType.Char, 10, "JSLXDM"),                      new OracleParameter(":JSDM", OracleType.VarChar, 6, "JSDM")                 };                 updateParms[0].IsNullable = false;                 OracleAdapter.UpdateCommand.Parameters.AddRange(updateParms);                 OracleAdapter.UpdateCommand.Connection = connection;                 #endregion                 #region  删除                 string deleteSql = "DELETE FROM HT_YHJS WHERE JSDM=:JSDM";                 OracleParameter[] deleteParms = {                         new OracleParameter(":JSDM", OracleType.VarChar, 6,"JSDM")                 };                 OracleAdapter.DeleteCommand = new OracleCommand();                 OracleAdapter.DeleteCommand.CommandType = CommandType.Text;                 OracleAdapter.DeleteCommand.CommandText = deleteSql;                 OracleAdapter.DeleteCommand.Parameters.AddRange(deleteParms);                 OracleAdapter.DeleteCommand.Connection = connection;                 #endregion                                  int r = OracleAdapter.Update(dt);                 dt.AcceptChanges();                 return r;         }