SQL Server数据库操作类
来源：互联网 发布：powermill没ug编程顺手 编辑：程序博客网 时间：2024/05/23 22:55
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Data.SqlClient;using System.Data;using System.Text.RegularExpressions;namespace Helpers{ /// <summary> /// SqlHelper操作类 /// </summary> public sealed partial class SqlHelper { /// <summary> /// 批量操作每批次记录数 /// </summary> public static int BatchSize = 2000; /// <summary> /// 超时时间 /// </summary> public static int CommandTimeOut = 600; /// <summary> ///初始化SqlHelper实例 /// </summary> /// <param name="connectionString">数据库连接字符串</param> public SqlHelper(string connectionString) { this.ConnectionString = connectionString; } /// <summary> /// 数据库连接字符串 /// </summary> public string ConnectionString { get; set; } #region 实例方法 #region ExecuteNonQuery /// <summary> /// 执行SQL语句,返回影响的行数 /// </summary> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>返回影响的行数</returns> public int ExecuteNonQuery(string commandText, params SqlParameter[] parms) { return ExecuteNonQuery(ConnectionString, CommandType.Text, commandText, parms); } /// <summary> /// 执行SQL语句,返回影响的行数 /// </summary> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回影响的行数</returns> public int ExecuteNonQuery(CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteNonQuery(ConnectionString, commandType, commandText, parms); } #endregion ExecuteNonQuery #region ExecuteScalar /// <summary> /// 执行SQL语句,返回结果集中的第一行第一列 /// </summary> /// <typeparam name="T">返回对象类型</typeparam> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一行第一列</returns> public T ExecuteScalar<T>(string commandText, params SqlParameter[] parms) { return ExecuteScalar<T>(ConnectionString, commandText, parms); } /// <summary> /// 执行SQL语句,返回结果集中的第一行第一列 /// </summary> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一行第一列</returns> public object ExecuteScalar(string commandText, params SqlParameter[] parms) { return ExecuteScalar(ConnectionString, CommandType.Text, commandText, parms); } /// <summary> /// 执行SQL语句,返回结果集中的第一行第一列 /// </summary> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一行第一列</returns> public object ExecuteScalar(CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteScalar(ConnectionString, commandType, commandText, parms); } #endregion ExecuteScalar #region ExecuteDataReader /// <summary> /// 执行SQL语句,返回只读数据集 /// </summary> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>返回只读数据集</returns> private SqlDataReader ExecuteDataReader(string commandText, params SqlParameter[] parms) { return ExecuteDataReader(ConnectionString, CommandType.Text, commandText, parms); } /// <summary> /// 执行SQL语句,返回只读数据集 /// </summary> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回只读数据集</returns> private SqlDataReader ExecuteDataReader(CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteDataReader(ConnectionString, commandType, commandText, parms); } #endregion #region ExecuteDataRow /// <summary> /// 执行SQL语句,返回结果集中的第一行 /// </summary> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一行</returns> public DataRow ExecuteDataRow(string commandText, params SqlParameter[] parms) { return ExecuteDataRow(ConnectionString, CommandType.Text, commandText, parms); } /// <summary> /// 执行SQL语句,返回结果集中的第一行 /// </summary> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一行</returns> public DataRow ExecuteDataRow(CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteDataRow(ConnectionString, commandType, commandText, parms); } #endregion ExecuteDataRow #region ExecuteDataTable /// <summary> /// 执行SQL语句,返回结果集中的第一个数据表 /// </summary> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一个数据表</returns> public DataTable ExecuteDataTable(string commandText, params SqlParameter[] parms) { return ExecuteDataTable(ConnectionString, CommandType.Text, commandText, parms); } /// <summary> /// 执行SQL语句,返回结果集中的第一个数据表 /// </summary> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一个数据表</returns> public DataTable ExecuteDataTable(CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteDataSet(ConnectionString, commandType, commandText, parms).Tables[0]; } /// <summary> /// 执行SQL语句,返回结果集中的第一个数据表 /// </summary> /// <param name="sql">SQL语句</param> /// <param name="order">排序SQL,如"ORDER BY ID DESC"</param> /// <param name="pageSize">每页记录数</param> /// <param name="pageIndex">页索引</param> /// <param name="parms">查询参数</param> /// <param name="query">查询SQL</param> /// <returns></returns> public DataTable ExecutePageDataTable(string sql, string order, int pageSize, int pageIndex, SqlParameter[] parms = null, string query = null, string cte = null) { return ExecutePageDataTable(sql, order, pageSize, pageIndex, parms, query, cte); } #endregion ExecuteDataTable #region ExecuteDataSet /// <summary> /// 执行SQL语句,返回结果集 /// </summary> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集</returns> public DataSet ExecuteDataSet(string commandText, params SqlParameter[] parms) { return ExecuteDataSet(ConnectionString, CommandType.Text, commandText, parms); } /// <summary> /// 执行SQL语句,返回结果集 /// </summary> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集</returns> public DataSet ExecuteDataSet(CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteDataSet(ConnectionString, commandType, commandText, parms); } #endregion ExecuteDataSet #region 批量操作 /// <summary> /// 大批量数据插入 /// </summary> /// <param name="table">数据表</param> public void BulkInsert(DataTable table) { BulkInsert(ConnectionString, table); } /// <summary> /// 使用MySqlDataAdapter批量更新数据 /// </summary> /// <param name="table">数据表</param> public void BatchUpdate(DataTable table) { BatchUpdate(ConnectionString, table); } /// <summary> /// 分批次批量删除数据 /// </summary> /// <param name="sql">SQL语句</param> /// <param name="batchSize">每批次删除记录行数</param> /// <param name="interval">批次执行间隔(秒)</param> public void BatchDelete(string sql, int batchSize = 1000, int interval = 1) { BatchDelete(ConnectionString, sql, batchSize, interval); } /// <summary> /// 分批次批量更新数据 /// </summary> /// <param name="sql">SQL语句</param> /// <param name="batchSize">每批次更新记录行数</param> /// <param name="interval">批次执行间隔(秒)</param> public void BatchUpdate(string sql, int batchSize = 1000, int interval = 1) { BatchUpdate(ConnectionString, sql, batchSize, interval); } #endregion 批量操作 #endregion 实例方法 #region 静态方法 private static void PrepareCommand(SqlCommand command, SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, SqlParameter[] parms) { if (connection.State != ConnectionState.Open) connection.Open(); command.Connection = connection; command.CommandTimeout = CommandTimeOut; // 设置命令文本(存储过程名或SQL语句) command.CommandText = commandText; // 分配事务 if (transaction != null) { command.Transaction = transaction; } // 设置命令类型. command.CommandType = commandType; if (parms != null && parms.Length > 0) { //预处理SqlParameter参数数组，将为NULL的参数赋值为DBNull.Value; foreach (SqlParameter parameter in parms) { if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input) && (parameter.Value == null)) { parameter.Value = DBNull.Value; } } command.Parameters.AddRange(parms); } } #region ExecuteNonQuery /// <summary> /// 执行SQL语句,返回影响的行数 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>返回影响的行数</returns> public static int ExecuteNonQuery(string connectionString, string commandText, params SqlParameter[] parms) { using (SqlConnection connection = new SqlConnection(connectionString)) { return ExecuteNonQuery(connection, CommandType.Text, commandText, parms); } } /// <summary> /// 执行SQL语句,返回影响的行数 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回影响的行数</returns> public static int ExecuteNonQuery(string connectionString, CommandType commandType, string commandText, params SqlParameter[] parms) { using (SqlConnection connection = new SqlConnection(connectionString)) { return ExecuteNonQuery(connection, commandType, commandText, parms); } } /// <summary> /// 执行SQL语句,返回影响的行数 /// </summary> /// <param name="connection">数据库连接</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回影响的行数</returns> public static int ExecuteNonQuery(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteNonQuery(connection, null, commandType, commandText, parms); } /// <summary> /// 执行SQL语句,返回影响的行数 /// </summary> /// <param name="transaction">事务</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回影响的行数</returns> public static int ExecuteNonQuery(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteNonQuery(transaction.Connection, transaction, commandType, commandText, parms); } /// <summary> /// 执行SQL语句,返回影响的行数 /// </summary> /// <param name="connection">数据库连接</param> /// <param name="transaction">事务</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回影响的行数</returns> private static int ExecuteNonQuery(SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] parms) { SqlCommand command = new SqlCommand(); PrepareCommand(command, connection, transaction, commandType, commandText, parms); int retval = command.ExecuteNonQuery(); command.Parameters.Clear(); return retval; } #endregion ExecuteNonQuery #region ExecuteScalar /// <summary> /// 执行SQL语句,返回结果集中的第一行第一列 /// </summary> /// <typeparam name="T">返回对象类型</typeparam> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一行第一列</returns> public static T ExecuteScalar<T>(string connectionString, string commandText, params SqlParameter[] parms) { object result = ExecuteScalar(connectionString, commandText, parms); if (result != null) { return (T)Convert.ChangeType(result, typeof(T)); ; } return default(T); } /// <summary> /// 执行SQL语句,返回结果集中的第一行第一列 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一行第一列</returns> public static object ExecuteScalar(string connectionString, string commandText, params SqlParameter[] parms) { using (SqlConnection connection = new SqlConnection(connectionString)) { return ExecuteScalar(connection, CommandType.Text, commandText, parms); } } /// <summary> /// 执行SQL语句,返回结果集中的第一行第一列 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一行第一列</returns> public static object ExecuteScalar(string connectionString, CommandType commandType, string commandText, params SqlParameter[] parms) { using (SqlConnection connection = new SqlConnection(connectionString)) { return ExecuteScalar(connection, commandType, commandText, parms); } } /// <summary> /// 执行SQL语句,返回结果集中的第一行第一列 /// </summary> /// <param name="connection">数据库连接</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一行第一列</returns> public static object ExecuteScalar(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteScalar(connection, null, commandType, commandText, parms); } /// <summary> /// 执行SQL语句,返回结果集中的第一行第一列 /// </summary> /// <param name="transaction">事务</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一行第一列</returns> public static object ExecuteScalar(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteScalar(transaction.Connection, transaction, commandType, commandText, parms); } /// <summary> /// 执行SQL语句,返回结果集中的第一行第一列 /// </summary> /// <param name="connection">数据库连接</param> /// <param name="transaction">事务</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一行第一列</returns> private static object ExecuteScalar(SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] parms) { SqlCommand command = new SqlCommand(); PrepareCommand(command, connection, transaction, commandType, commandText, parms); object retval = command.ExecuteScalar(); command.Parameters.Clear(); return retval; } #endregion ExecuteScalar #region ExecuteDataReader /// <summary> /// 执行SQL语句,返回只读数据集 /// </summary> /// <param name="connection">数据库连接</param> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>返回只读数据集</returns> private static SqlDataReader ExecuteDataReader(string connectionString, string commandText, params SqlParameter[] parms) { SqlConnection connection = new SqlConnection(connectionString); return ExecuteDataReader(connection, null, CommandType.Text, commandText, parms); } /// <summary> /// 执行SQL语句,返回只读数据集 /// </summary> /// <param name="connection">数据库连接</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回只读数据集</returns> private static SqlDataReader ExecuteDataReader(string connectionString, CommandType commandType, string commandText, params SqlParameter[] parms) { SqlConnection connection = new SqlConnection(connectionString); return ExecuteDataReader(connection, null, commandType, commandText, parms); } /// <summary> /// 执行SQL语句,返回只读数据集 /// </summary> /// <param name="connection">数据库连接</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回只读数据集</returns> private static SqlDataReader ExecuteDataReader(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteDataReader(connection, null, commandType, commandText, parms); } /// <summary> /// 执行SQL语句,返回只读数据集 /// </summary> /// <param name="transaction">事务</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回只读数据集</returns> private static SqlDataReader ExecuteDataReader(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteDataReader(transaction.Connection, transaction, commandType, commandText, parms); } /// <summary> /// 执行SQL语句,返回只读数据集 /// </summary> /// <param name="connection">数据库连接</param> /// <param name="transaction">事务</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回只读数据集</returns> private static SqlDataReader ExecuteDataReader(SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] parms) { SqlCommand command = new SqlCommand(); PrepareCommand(command, connection, transaction, commandType, commandText, parms); return command.ExecuteReader(CommandBehavior.CloseConnection); } #endregion #region ExecuteDataRow /// <summary> /// 执行SQL语句,返回结果集中的第一行 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>,返回结果集中的第一行</returns> public static DataRow ExecuteDataRow(string connectionString, string commandText, params SqlParameter[] parms) { DataTable dt = ExecuteDataTable(connectionString, CommandType.Text, commandText, parms); return dt.Rows.Count > 0 ? dt.Rows[0] : null; } /// <summary> /// 执行SQL语句,返回结果集中的第一行 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>,返回结果集中的第一行</returns> public static DataRow ExecuteDataRow(string connectionString, CommandType commandType, string commandText, params SqlParameter[] parms) { DataTable dt = ExecuteDataTable(connectionString, commandType, commandText, parms); return dt.Rows.Count > 0 ? dt.Rows[0] : null; } /// <summary> /// 执行SQL语句,返回结果集中的第一行 /// </summary> /// <param name="connection">数据库连接</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>,返回结果集中的第一行</returns> public static DataRow ExecuteDataRow(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] parms) { DataTable dt = ExecuteDataTable(connection, commandType, commandText, parms); return dt.Rows.Count > 0 ? dt.Rows[0] : null; } /// <summary> /// 执行SQL语句,返回结果集中的第一行 /// </summary> /// <param name="transaction">事务</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>,返回结果集中的第一行</returns> public static DataRow ExecuteDataRow(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] parms) { DataTable dt = ExecuteDataTable(transaction, commandType, commandText, parms); return dt.Rows.Count > 0 ? dt.Rows[0] : null; } #endregion ExecuteDataRow #region ExecuteDataTable /// <summary> /// 执行SQL语句,返回结果集中的第一个数据表 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一个数据表</returns> public static DataTable ExecuteDataTable(string connectionString, string commandText, params SqlParameter[] parms) { return ExecuteDataSet(connectionString, CommandType.Text, commandText, parms).Tables[0]; } /// <summary> /// 执行SQL语句,返回结果集中的第一个数据表 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一个数据表</returns> public static DataTable ExecuteDataTable(string connectionString, CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteDataSet(connectionString, commandType, commandText, parms).Tables[0]; } /// <summary> /// 执行SQL语句,返回结果集中的第一个数据表 /// </summary> /// <param name="connection">数据库连接</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一个数据表</returns> public static DataTable ExecuteDataTable(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteDataSet(connection, commandType, commandText, parms).Tables[0]; } /// <summary> /// 执行SQL语句,返回结果集中的第一个数据表 /// </summary> /// <param name="transaction">事务</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集中的第一个数据表</returns> public static DataTable ExecuteDataTable(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteDataSet(transaction, commandType, commandText, parms).Tables[0]; } /// <summary> /// 获取空表结构 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="tableName">数据表名称</param> /// <returns>返回结果集中的第一个数据表</returns> public static DataTable ExecuteEmptyDataTable(string connectionString, string tableName) { return ExecuteDataSet(connectionString, CommandType.Text, string.Format("select * from {0} where 1=-1", tableName)).Tables[0]; } /// <summary> /// 执行SQL语句,返回结果集中的第一个数据表 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="sql">SQL语句</param> /// <param name="order">排序SQL,如"ORDER BY ID DESC"</param> /// <param name="pageSize">每页记录数</param> /// <param name="pageIndex">页索引</param> /// <param name="parms">查询参数</param> /// <param name="query">查询SQL</param> /// <param name="cte">CTE表达式</param> /// <returns></returns> public static DataTable ExecutePageDataTable(string connectionString, string sql, string order, int pageSize, int pageIndex, SqlParameter[] parms = null, string query = null, string cte = null) { string psql = string.Format(@" {3} SELECT * FROM ( SELECT ROW_NUMBER() OVER (ORDER BY {1}) RowNumber,* FROM ( {0} ) t WHERE 1 = 1 {2} ) t WHERE RowNumber BETWEEN @RowNumber_Begin AND @RowNumber_End", sql, order, query, cte); List<SqlParameter> paramlist = new List<SqlParameter>() { new SqlParameter("@RowNumber_Begin", SqlDbType.Int){ Value = (pageIndex - 1) * pageSize + 1 }, new SqlParameter("@RowNumber_End", SqlDbType.Int){ Value = pageIndex * pageSize } }; if (parms != null) paramlist.AddRange(parms); return ExecuteDataTable(connectionString, psql, paramlist.ToArray()); } #endregion ExecuteDataTable #region ExecuteDataSet /// <summary> /// 执行SQL语句,返回结果集 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandText">SQL语句</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集</returns> public static DataSet ExecuteDataSet(string connectionString, string commandText, params SqlParameter[] parms) { return ExecuteDataSet(connectionString, CommandType.Text, commandText, parms); } /// <summary> /// 执行SQL语句,返回结果集 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集</returns> public static DataSet ExecuteDataSet(string connectionString, CommandType commandType, string commandText, params SqlParameter[] parms) { using (SqlConnection connection = new SqlConnection(connectionString)) { return ExecuteDataSet(connection, commandType, commandText, parms); } } /// <summary> /// 执行SQL语句,返回结果集 /// </summary> /// <param name="connection">数据库连接</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集</returns> public static DataSet ExecuteDataSet(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteDataSet(connection, null, commandType, commandText, parms); } /// <summary> /// 执行SQL语句,返回结果集 /// </summary> /// <param name="transaction">事务</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集</returns> public static DataSet ExecuteDataSet(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] parms) { return ExecuteDataSet(transaction.Connection, transaction, commandType, commandText, parms); } /// <summary> /// 执行SQL语句,返回结果集 /// </summary> /// <param name="connection">数据库连接</param> /// <param name="transaction">事务</param> /// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param> /// <param name="commandText">SQL语句或存储过程名称</param> /// <param name="parms">查询参数</param> /// <returns>返回结果集</returns> private static DataSet ExecuteDataSet(SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] parms) { SqlCommand command = new SqlCommand(); PrepareCommand(command, connection, transaction, commandType, commandText, parms); SqlDataAdapter adapter = new SqlDataAdapter(command); DataSet ds = new DataSet(); adapter.Fill(ds); if (commandText.IndexOf("@") > 0) { commandText = commandText.ToLower(); int index = commandText.IndexOf("where "); if (index < 0) { index = commandText.IndexOf("\nwhere"); } if (index > 0) { ds.ExtendedProperties.Add("SQL", commandText.Substring(0, index - 1)); //将获取的语句保存在表的一个附属数组里，方便更新时生成CommandBuilder } else { ds.ExtendedProperties.Add("SQL", commandText); //将获取的语句保存在表的一个附属数组里，方便更新时生成CommandBuilder } } else { ds.ExtendedProperties.Add("SQL", commandText); //将获取的语句保存在表的一个附属数组里，方便更新时生成CommandBuilder } foreach (DataTable dt in ds.Tables) { dt.ExtendedProperties.Add("SQL", ds.ExtendedProperties["SQL"]); } command.Parameters.Clear(); return ds; } #endregion ExecuteDataSet #region 批量操作 /// <summary> /// 大批量数据插入 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="table">数据表</param> public static void BulkInsert(string connectionString, DataTable table) { if (string.IsNullOrEmpty(table.TableName)) throw new Exception("DataTable.TableName属性不能为空"); using (SqlBulkCopy bulk = new SqlBulkCopy(connectionString)) { bulk.BatchSize = BatchSize; bulk.BulkCopyTimeout = CommandTimeOut; bulk.DestinationTableName = table.TableName; foreach (DataColumn col in table.Columns) { bulk.ColumnMappings.Add(col.ColumnName, col.ColumnName); } bulk.WriteToServer(table); bulk.Close(); } } /// <summary> /// 使用MySqlDataAdapter批量更新数据 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="table">数据表</param> public static void BatchUpdate(string connectionString, DataTable table) { SqlConnection connection = new SqlConnection(connectionString); SqlCommand command = connection.CreateCommand(); command.CommandTimeout = CommandTimeOut; command.CommandType = CommandType.Text; SqlDataAdapter adapter = new SqlDataAdapter(command); SqlCommandBuilder commandBulider = new SqlCommandBuilder(adapter); commandBulider.ConflictOption = ConflictOption.OverwriteChanges; SqlTransaction transaction = null; try { connection.Open(); transaction = connection.BeginTransaction(); //设置批量更新的每次处理条数 adapter.UpdateBatchSize = BatchSize; //设置事物 adapter.SelectCommand.Transaction = transaction; if (table.ExtendedProperties["SQL"] != null) { adapter.SelectCommand.CommandText = table.ExtendedProperties["SQL"].ToString(); } adapter.Update(table); transaction.Commit();/////提交事务 } catch (SqlException ex) { if (transaction != null) transaction.Rollback(); throw ex; } finally { connection.Close(); connection.Dispose(); } } /// <summary> /// 分批次批量删除数据 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="sql">SQL语句</param> /// <param name="batchSize">每批次更新记录行数</param> /// <param name="interval">批次执行间隔(秒)</param> public static void BatchDelete(string connectionString, string sql, int batchSize = 1000, int interval = 1) { sql = sql.ToLower(); if (batchSize < 1000) batchSize = 1000; if (interval < 1) interval = 1; while (ExecuteScalar(connectionString, sql.Replace("delete", "select top 1 1")) != null) { ExecuteNonQuery(connectionString, CommandType.Text, sql.Replace("delete", string.Format("delete top ({0})", batchSize))); System.Threading.Thread.Sleep(interval * 1000); } } /// <summary> /// 分批次批量更新数据 /// </summary> /// <param name="connectionString">数据库连接字符串</param> /// <param name="sql">SQL语句</param> /// <param name="batchSize">每批次更新记录行数</param> /// <param name="interval">批次执行间隔(秒)</param> public static void BatchUpdate(string connectionString, string sql, int batchSize = 1000, int interval = 1) { if (batchSize < 1000) batchSize = 1000; if (interval < 1) interval = 1; string existsSql = Regex.Replace(sql, @"[\w\s.=,']*from", "select top 1 1 from", RegexOptions.IgnoreCase); existsSql = Regex.Replace(existsSql, @"set[\w\s.=,']* where", "where", RegexOptions.IgnoreCase); existsSql = Regex.Replace(existsSql, @"update", "select top 1 1 from", RegexOptions.IgnoreCase); while (ExecuteScalar<int>(connectionString, existsSql) != 0) { ExecuteNonQuery(connectionString, CommandType.Text, Regex.Replace(sql, "update", string.Format("update top ({0})", batchSize), RegexOptions.IgnoreCase)); System.Threading.Thread.Sleep(interval * 1000); } } #endregion 批量操作 #endregion 静态方法 }}SqlHelper.cs 0 0
- SQL Server数据库操作类
- SQL Server 数据库操作类
- SQL Server 数据库操作
- SQL Server数据库操作
- SQL SERVER C#数据库操作类
- sql server C#数据库操作类(转)
- C#操作sql server 数据库访问类
- c# 数据库操作类sql server篇
- C#操作SQL Server数据库通用类
- C#操作SQL SERVER数据库通用类
- DBHelper SQL Server数据库操作类
- SQL Server数据库操作类(C#)
- Java操作SQL Server数据库
- jdbc操作sql server数据库
- Python操作SQL Server数据库
- C#操作SQL Server数据库
- C#操作SQL Server数据库
- C#操作SQL Server数据库
- 就是突然想笑
- centos 7 安装mysql
- 用五分钟重温委托，匿名方法，Lambda，泛型委托，表达式树
- JDBC之BaseJDBC和CRUDDAO的写法
- C++后缀数组详解
- SQL Server数据库操作类
- Linux系统使用--ubuntu 16.04安装与下载KDE(kubuntu-desktop)以及相关并发意外状况的处理
- Android中ListView使用getItemViewType为item设置不同的布局
- 深入理解 python 中的赋值、引用、拷贝、作用域
- 0、1编码
- 封装了http Get请求和Post请求
- SQL Server存储过程实例
- CentOS 7 安装 MySQL 5.6
- 使用终端命令行将本地项目上传到Github并提交代码
