225 lines
8.6 KiB
C#
225 lines
8.6 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Linq;
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using System.Text;
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using Oracle.ManagedDataAccess.Client;
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namespace ConnectPoint
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{
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class Class1
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{
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/// <summary>
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/// 批量插入数据
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/// </summary>
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/// <param name="tableName">表名称</param>
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/// <param name="columnRowData">键-值存储的批量数据：键是列名称，值是该列对应的数据集合</param>
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/// <returns></returns>
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public int BatchInsert(string tableName, Dictionary<string, object[]> columnRowData)
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{
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if (string.IsNullOrEmpty(tableName))
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{
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throw new ArgumentNullException("tableName", "必须指定批量插入的表名称");
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}
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if (columnRowData == null || columnRowData.Count < 1)
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{
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throw new ArgumentException("必须指定批量插入的字段名称", "columnRowData");
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}
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int iResult = 0;
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string[] dbColumns = columnRowData.Keys.ToArray();
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StringBuilder sbCmdText = new StringBuilder();
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if (columnRowData.Count > 0)
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{
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// 准备插入SQL
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sbCmdText.AppendFormat("INSERT INTO {1} (", tableName);
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sbCmdText.Append(string.Join(",", dbColumns));
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sbCmdText.Append(") VALUES (");
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sbCmdText.Append(":" + string.Join(", :", dbColumns));
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sbCmdText.Append(") ");
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using (OracleConnection conn = new OracleConnection("数据库连接字符信息"))
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{
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using (OracleCommand cmd = conn.CreateCommand())
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{
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// 绑定批处理的行数
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cmd.ArrayBindCount = columnRowData.Values.First().Length; // 很重要
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cmd.BindByName = true;
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cmd.CommandType = CommandType.Text;
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cmd.CommandText = sbCmdText.ToString();
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cmd.CommandTimeout = 600; // 10分钟
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// 创建参数
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OracleParameter oraParam;
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List<IDbDataParameter> cacher = new List<IDbDataParameter>();
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OracleDbType dbType =new OracleDbType();
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foreach (string colName in dbColumns)
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{
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dbType = this.GetOracleDbType(columnRowData[colName][0]);
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oraParam = new OracleParameter(colName, dbType);
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oraParam.Direction = ParameterDirection.Input;
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oraParam.OracleDbTypeEx = dbType;
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oraParam.Value = columnRowData[colName];
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cmd.Parameters.Add(oraParam);
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}
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// 执行批处理
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var trans = conn.BeginTransaction();
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try
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{
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cmd.Transaction = trans;
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iResult = cmd.ExecuteNonQuery();
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trans.Commit();
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}
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catch (Exception dbex)
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{
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trans.Rollback();
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throw dbex;
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}
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}
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}
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}
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return iResult;
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}
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/// 批量更新数据
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/// </summary>
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/// <param name="tableName">表名称</param>
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/// <param name="keyColumName">主键列名称</param>
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/// <param name="columnRowData">键-值存储的批量数据：键是列名称，值是该列对应的数据集合</param>
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/// <returns></returns>
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public int BatchUpdate(string tableName, string keyColumName, Dictionary<string, object[]> columnRowData)
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{
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if (string.IsNullOrEmpty(tableName))
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{
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throw new ArgumentNullException("tableName", "必须指定批量插入的表名称");
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}
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if (string.IsNullOrEmpty(tableName))
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{
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throw new ArgumentNullException("keyColumName", "必须指定批量插入表的主键列名称");
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}
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if (columnRowData == null || columnRowData.Count < 1)
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{
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throw new ArgumentException("必须指定批量插入的字段名称", "columnRowData");
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}
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int iResult = 0;
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string[] dbColumns = columnRowData.Keys.ToArray();
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StringBuilder sbCmdText = new StringBuilder();
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if (columnRowData.Count > 0)
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{
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// 准备更新SQL
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sbCmdText.AppendFormat("update {0} set ", tableName);
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foreach (var col in dbColumns)
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{
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if (keyColumName.Equals(col, StringComparison.OrdinalIgnoreCase))
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{
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continue;
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}
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sbCmdText.AppendFormat("{0} = :{0} ,", col);
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}
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sbCmdText.Remove(sbCmdText.Length - 1, 1);
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sbCmdText.AppendFormat(" where {0} = :{0}", keyColumName);
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using (OracleConnection conn = new OracleConnection("数据库连接字符信息"))
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{
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using (OracleCommand cmd = conn.CreateCommand())
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{
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// 绑定批处理的行数
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cmd.ArrayBindCount = columnRowData.Values.First().Length; // 很重要
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cmd.BindByName = true;
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cmd.CommandType = CommandType.Text;
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cmd.CommandText = sbCmdText.ToString();
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cmd.CommandTimeout = 600; // 10分钟
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// 创建参数
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OracleParameter oraParam;
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List<IDbDataParameter> cacher = new List<IDbDataParameter>();
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OracleDbType dbType = new OracleDbType();
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foreach (string colName in dbColumns)
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{
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dbType = this.GetOracleDbType(columnRowData[colName][0]);
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oraParam = new OracleParameter(colName, dbType);
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oraParam.Direction = ParameterDirection.Input;
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oraParam.OracleDbTypeEx = dbType;
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oraParam.Value = columnRowData[colName];
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cmd.Parameters.Add(oraParam);
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}
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// 执行批处理
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var trans = conn.BeginTransaction();
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try
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{
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cmd.Transaction = trans;
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iResult = cmd.ExecuteNonQuery();
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trans.Commit();
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}
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catch (Exception dbex)
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{
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trans.Rollback();
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throw dbex;
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}
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}
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}
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}
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return iResult;
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}
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/// <summary>
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/// 根据数据类型获取OracleDbType
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/// </summary>
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/// <param name="value"></param>
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/// <returns></returns>
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private OracleDbType GetOracleDbType(object value)
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{
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OracleDbType dataType = new OracleDbType();
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if (value is string)
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{
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dataType = OracleDbType.Varchar2;
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}
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else if (value is DateTime)
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{
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dataType = OracleDbType.TimeStamp;
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}
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else if (value is int || value is short)
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{
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dataType = OracleDbType.Int32;
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}
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else if (value is long)
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{
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dataType = OracleDbType.Int64;
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}
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else if (value is decimal || value is double)
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{
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dataType = OracleDbType.Decimal;
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}
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else if (value is Guid)
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{
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dataType = OracleDbType.Varchar2;
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}
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else if (value is bool || value is Boolean)
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{
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dataType = OracleDbType.Byte;
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}
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else if (value is byte[])
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{
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dataType = OracleDbType.Blob;
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}
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else if (value is char)
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{
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dataType = OracleDbType.Char;
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}
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return dataType;
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}
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}
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}
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