Exemple #1
0
        /// <summary>
        /// 向数据库里插入图像格式的字段(和上面情况类似的另一种实例)
        /// </summary>
        /// <param name="strSQL">SQL语句</param>
        /// <param name="fs">图像字节,数据库的字段类型为image的情况</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSqlInsertImg(string strSQL, byte[] fs)
        {
            DbHelperSQL db = new HelpereStr();

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                SqlCommand cmd = new SqlCommand(strSQL, connection);
                System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@fs", SqlDbType.Image);
                myParameter.Value = fs;
                cmd.Parameters.Add(myParameter);
                try
                {
                    connection.Open();
                    int rows = cmd.ExecuteNonQuery();
                    return(rows);
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    throw e;
                }
                finally
                {
                    cmd.Dispose();
                    connection.Close();
                }
            }
        }
Exemple #2
0
        /// <summary>
        /// 执行多条SQL语句,实现数据库事务。
        /// </summary>
        /// <param name="SQLStringList">SQL语句的哈希表(key为sql语句,value是该语句的SqlParameter[])</param>
        public static void ExecuteSqlTran(Hashtable SQLStringList)
        {
            DbHelperSQL db = new HelpereStr();

            using (SqlConnection conn = new SqlConnection(db.connectionString))
            {
                conn.Open();
                using (SqlTransaction trans = conn.BeginTransaction())
                {
                    SqlCommand cmd = new SqlCommand();
                    try
                    {
                        //循环
                        foreach (DictionaryEntry myDE in SQLStringList)
                        {
                            string         cmdText  = myDE.Key.ToString();
                            SqlParameter[] cmdParms = (SqlParameter[])myDE.Value;
                            PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
                            int val = cmd.ExecuteNonQuery();
                            cmd.Parameters.Clear();
                        }
                        trans.Commit();
                    }
                    catch
                    {
                        trans.Rollback();
                        throw;
                    }
                }
            }
        }
Exemple #3
0
        /// <summary>
        ///  批量插入
        /// </summary>
        /// <param name="dt"></param>
        /// <param name="tablename"></param>
        /// <returns></returns>
        public static bool SqlBulkCopyInsert(DataTable dt, string tablename, string connectionStringName)
        {
            bool        flag        = false;
            DbHelperSQL db          = new HelpereStr(connectionStringName);
            SqlBulkCopy sqlBulkCopy = new SqlBulkCopy(db.connectionString, SqlBulkCopyOptions.UseInternalTransaction);

            sqlBulkCopy.BulkCopyTimeout = 5000;
            sqlBulkCopy.NotifyAfter     = dt.Rows.Count;
            sqlBulkCopy.BatchSize       = dt.Rows.Count;
            try
            {
                if (dt != null && dt.Rows.Count != 0)
                {
                    sqlBulkCopy.DestinationTableName = tablename;
                    sqlBulkCopy.WriteToServer(dt);
                }
                flag = true;
            }
            catch (Exception ex)
            {
                flag = false;
            }
            finally
            {
                sqlBulkCopy.Close();
            }
            return(flag);
        }
Exemple #4
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        /// <summary>
        /// 执行查询语句,返回DataSet
        /// </summary>
        /// <param name="SQLString">查询语句</param>
        /// <returns>DataSet</returns>
        public static DataTable QueryTable(string connectionStringName, string SQLString)
        {
            DbHelperSQL db = new HelpereStr(connectionStringName);

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                DataSet ds = new DataSet();
                try
                {
                    connection.Open();
                    SqlDataAdapter command = new SqlDataAdapter(SQLString, connection);
                    command.Fill(ds, "ds");
                }
                catch (System.Data.SqlClient.SqlException ex)
                {
                    throw new Exception(ex.Message);
                }

                if (ds != null && ds.Tables.Count != 0 && ds.Tables[0].Rows.Count != 0)
                {
                    return(ds.Tables[0]);
                }
                else
                {
                    return(null);
                }
            }
        }
Exemple #5
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        public static object GetSingle(string SQLString, int Times)
        {
            DbHelperSQL db = new HelpereStr();

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                using (SqlCommand cmd = new SqlCommand(SQLString, connection))
                {
                    try
                    {
                        connection.Open();
                        cmd.CommandTimeout = Times;
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return(null);
                        }
                        else
                        {
                            return(obj);
                        }
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        connection.Close();
                        throw e;
                    }
                }
            }
        }
Exemple #6
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        /// <summary>
        /// 执行带一个存储过程参数的的SQL语句。
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <param name="content">参数内容,比如一个字段是格式复杂的文章,有特殊符号,可以通过这个方式添加</param>
        /// <returns>影响的记录数</returns>
        public static object ExecuteSqlGet(string SQLString, string content)
        {
            DbHelperSQL db = new HelpereStr();

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                SqlCommand cmd = new SqlCommand(SQLString, connection);
                System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@content", SqlDbType.NText);
                myParameter.Value = content;
                cmd.Parameters.Add(myParameter);
                try
                {
                    connection.Open();
                    object obj = cmd.ExecuteScalar();
                    if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                    {
                        return(null);
                    }
                    else
                    {
                        return(obj);
                    }
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    throw e;
                }
                finally
                {
                    cmd.Dispose();
                    connection.Close();
                }
            }
        }
Exemple #7
0
        /// <summary>
        /// 执行带一个存储过程参数的的SQL语句。
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <param name="content">参数内容,比如一个字段是格式复杂的文章,有特殊符号,可以通过这个方式添加</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(string SQLString, string content)
        {
            DbHelperSQL db = new HelpereStr();

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                SqlCommand cmd = new SqlCommand(SQLString, connection);
                System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@content", SqlDbType.NText);
                myParameter.Value = content;
                cmd.Parameters.Add(myParameter);
                try
                {
                    connection.Open();
                    int rows = cmd.ExecuteNonQuery();
                    return(rows);
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    throw e;
                }
                finally
                {
                    cmd.Dispose();
                    connection.Close();
                }
            }
        }
Exemple #8
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        /// <summary>
        /// 执行多条SQL语句,实现数据库事务。
        /// </summary>
        /// <param name="SQLStringList">多条SQL语句</param>
        public static int ExecuteSqlTran(List <String> SQLStringList)
        {
            DbHelperSQL db = new HelpereStr();

            using (SqlConnection conn = new SqlConnection(db.connectionString))
            {
                conn.Open();
                SqlCommand cmd = new SqlCommand();
                cmd.Connection = conn;
                SqlTransaction tx = conn.BeginTransaction();
                cmd.Transaction = tx;
                try
                {
                    int count = 0;
                    for (int n = 0; n < SQLStringList.Count; n++)
                    {
                        string strsql = SQLStringList[n];
                        if (strsql.Trim().Length > 1)
                        {
                            cmd.CommandText = strsql;
                            count          += cmd.ExecuteNonQuery();
                        }
                    }
                    tx.Commit();
                    return(count);
                }
                catch
                {
                    tx.Rollback();
                    return(0);
                }
            }
        }
Exemple #9
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        /// <summary>
        /// 执行一条计算查询结果语句,返回查询结果(object)。
        /// </summary>
        /// <param name="SQLString">计算查询结果语句</param>
        /// <returns>查询结果(object)</returns>
        public static object GetSingle(string SQLString, params SqlParameter[] cmdParms)
        {
            DbHelperSQL db = new HelpereStr();

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                using (SqlCommand cmd = new SqlCommand())
                {
                    try
                    {
                        PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                        object obj = cmd.ExecuteScalar();
                        cmd.Parameters.Clear();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return(null);
                        }
                        else
                        {
                            return(obj);
                        }
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        throw e;
                    }
                }
            }
        }
Exemple #10
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        /// <summary>
        /// 执行存储过程,返回SqlDataReader ( 注意:调用该方法后,一定要对SqlDataReader进行Close )
        /// </summary>
        /// <param name="storedProcName">存储过程名</param>
        /// <param name="parameters">存储过程参数</param>
        /// <returns>SqlDataReader</returns>
        public static SqlDataReader RunProcedure(string storedProcName, IDataParameter[] parameters)
        {
            DbHelperSQL   db         = new HelpereStr();
            SqlConnection connection = new SqlConnection(db.connectionString);
            SqlDataReader returnReader;

            connection.Open();
            SqlCommand command = BuildQueryCommand(connection, storedProcName, parameters);

            command.CommandType = CommandType.StoredProcedure;
            returnReader        = command.ExecuteReader(CommandBehavior.CloseConnection);
            return(returnReader);
        }
Exemple #11
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        /// <summary>
        /// 执行存储过程,返回影响的行数
        /// </summary>
        /// <param name="storedProcName">存储过程名</param>
        /// <param name="parameters">存储过程参数</param>
        /// <param name="rowsAffected">影响的行数</param>
        /// <returns></returns>
        public static int RunProcedure(string storedProcName, IDataParameter[] parameters, out int rowsAffected)
        {
            DbHelperSQL db = new HelpereStr();

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                int result;
                connection.Open();
                SqlCommand command = BuildIntCommand(connection, storedProcName, parameters);
                rowsAffected = command.ExecuteNonQuery();
                result       = (int)command.Parameters["ReturnValue"].Value;
                //Connection.Close();
                return(result);
            }
        }
Exemple #12
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        /// <summary>
        /// 执行查询语句,返回DataSet
        /// </summary>
        /// <param name="SQLString">查询语句</param>
        /// <returns>DataSet</returns>
        public static DataSet Query(string SQLString)
        {
            DbHelperSQL db = new HelpereStr();

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                DataSet ds = new DataSet();

                connection.Open();
                SqlDataAdapter command = new SqlDataAdapter(SQLString, connection);
                command.Fill(ds, "ds");

                return(ds);
            }
        }
Exemple #13
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        public static DataSet RunProcedure(string storedProcName, IDataParameter[] parameters, string tableName, int Times)
        {
            DbHelperSQL db = new HelpereStr();

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                DataSet dataSet = new DataSet();
                connection.Open();
                SqlDataAdapter sqlDA = new SqlDataAdapter();
                sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters);
                sqlDA.SelectCommand.CommandTimeout = Times;
                sqlDA.Fill(dataSet, tableName);
                connection.Close();
                return(dataSet);
            }
        }
Exemple #14
0
        /// <summary>
        /// 执行多条SQL语句,实现数据库事务。
        /// </summary>
        /// <param name="SQLStringList">SQL语句的哈希表(key为sql语句,value是该语句的SqlParameter[])</param>
        public static void ExecuteSqlTranWithIndentity(Hashtable SQLStringList)
        {
            DbHelperSQL db = new HelpereStr();

            using (SqlConnection conn = new SqlConnection(db.connectionString))
            {
                conn.Open();
                using (SqlTransaction trans = conn.BeginTransaction())
                {
                    SqlCommand cmd = new SqlCommand();
                    try
                    {
                        int indentity = 0;
                        //循环
                        foreach (DictionaryEntry myDE in SQLStringList)
                        {
                            string         cmdText  = myDE.Key.ToString();
                            SqlParameter[] cmdParms = (SqlParameter[])myDE.Value;
                            foreach (SqlParameter q in cmdParms)
                            {
                                if (q.Direction == ParameterDirection.InputOutput)
                                {
                                    q.Value = indentity;
                                }
                            }
                            PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
                            int val = cmd.ExecuteNonQuery();
                            foreach (SqlParameter q in cmdParms)
                            {
                                if (q.Direction == ParameterDirection.Output)
                                {
                                    indentity = Convert.ToInt32(q.Value);
                                }
                            }
                            cmd.Parameters.Clear();
                        }
                        trans.Commit();
                    }
                    catch
                    {
                        trans.Rollback();
                        throw;
                    }
                }
            }
        }
Exemple #15
0
        /// <summary>
        /// 批量插入更新
        /// </summary>
        /// <param name="ds"></param>
        /// <param name="strTblName"></param>
        /// <param name="strConnection"></param>
        /// <returns></returns>
        public static int UpdateByDataSet(DataTable dt, string strTblName)
        {
            try
            {
                DbHelperSQL   db         = new HelpereStr();
                SqlConnection connection = new SqlConnection(db.connectionString);
                connection.Open();
                SqlDataAdapter ada = new SqlDataAdapter(("select  * from " + strTblName), connection);

                SqlCommandBuilder cb = new SqlCommandBuilder(ada);
                return(ada.Update(dt));
            }
            catch (Exception errBU)
            {
                throw errBU;
            }
        }
Exemple #16
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        /// <summary>
        /// 执行查询语句,返回SqlDataReader ( 注意:调用该方法后,一定要对SqlDataReader进行Close )
        /// </summary>
        /// <param name="strSQL">查询语句</param>
        /// <returns>SqlDataReader</returns>
        public static SqlDataReader ExecuteReader(string strSQL)
        {
            DbHelperSQL   db         = new HelpereStr();
            SqlConnection connection = new SqlConnection(db.connectionString);
            SqlCommand    cmd        = new SqlCommand(strSQL, connection);

            try
            {
                connection.Open();
                SqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                return(myReader);
            }
            catch (System.Data.SqlClient.SqlException e)
            {
                throw e;
            }
        }
Exemple #17
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        /// <summary>
        /// 批量插入
        /// </summary>
        /// <param name="dt"></param>
        /// <returns></returns>
        public static int SqlBulkCopy(DataTable dt)
        {
            DbHelperSQL db  = new HelpereStr();
            SqlBulkCopy sbc = new SqlBulkCopy(db.connectionString, SqlBulkCopyOptions.UseInternalTransaction);

            sbc.BulkCopyTimeout = 5000;
            sbc.NotifyAfter     = dt.Rows.Count;

            try
            {
                sbc.DestinationTableName = "bcd";
                sbc.WriteToServer(dt);
            }
            catch (Exception ex)
            {
            }
            return(sbc.NotifyAfter);
        }
Exemple #18
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        public static DataSet Query(string connectionStringName, string SQLString)
        {
            DbHelperSQL db = new HelpereStr(connectionStringName);

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                DataSet ds = new DataSet();
                try
                {
                    connection.Open();
                    SqlDataAdapter command = new SqlDataAdapter(SQLString, connection);
                    command.Fill(ds, "ds");
                }
                catch (System.Data.SqlClient.SqlException ex)
                {
                }
                return(ds);
            }
        }
Exemple #19
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        public static DataSet Query(string SQLString, int Times)
        {
            DbHelperSQL db = new HelpereStr();

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                DataSet ds = new DataSet();
                try
                {
                    connection.Open();
                    SqlDataAdapter command = new SqlDataAdapter(SQLString, connection);
                    command.SelectCommand.CommandTimeout = Times;
                    command.Fill(ds, "ds");
                }
                catch (System.Data.SqlClient.SqlException ex)
                {
                    throw new Exception(ex.Message);
                }
                return(ds);
            }
        }
Exemple #20
0
        /// <summary>
        ///  批量插入
        /// </summary>
        /// <param name="dt"></param>
        /// <param name="tablename"></param>
        /// <returns></returns>
        public static int SqlBulkCopyInsert(DataTable dt, string tablename)
        {
            DbHelperSQL db          = new HelpereStr();
            SqlBulkCopy sqlBulkCopy = new SqlBulkCopy(db.connectionString, SqlBulkCopyOptions.UseInternalTransaction);

            sqlBulkCopy.BulkCopyTimeout = 5000;
            sqlBulkCopy.NotifyAfter     = dt.Rows.Count;
            sqlBulkCopy.BatchSize       = dt.Rows.Count;

            try
            {
                if (dt != null && dt.Rows.Count != 0)
                {
                    sqlBulkCopy.DestinationTableName = tablename;
                    sqlBulkCopy.WriteToServer(dt);
                }
            }
            catch (Exception ex)
            {
            }
            return(sqlBulkCopy.NotifyAfter);
        }
Exemple #21
0
        /// <summary>
        /// 执行SQL语句,返回影响的记录数
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSqlByConnStr(string connectionStringName, string SQLString)
        {
            DbHelperSQL db = new HelpereStr(connectionStringName);

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                using (SqlCommand cmd = new SqlCommand(SQLString, connection))
                {
                    try
                    {
                        connection.Open();
                        int rows = cmd.ExecuteNonQuery();
                        return(rows);
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        connection.Close();
                        throw e;
                    }
                }
            }
        }
Exemple #22
0
        /// <summary>
        /// 执行SQL语句,返回影响的记录数
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(string connectionStringName, string SQLString, params SqlParameter[] cmdParms)
        {
            DbHelperSQL db = new HelpereStr(connectionStringName);

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                using (SqlCommand cmd = new SqlCommand())
                {
                    try
                    {
                        PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                        int rows = cmd.ExecuteNonQuery();
                        cmd.Parameters.Clear();
                        return(rows);
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        throw e;
                    }
                }
            }
        }
Exemple #23
0
        /// <summary>
        /// 执行查询语句,返回SqlDataReader ( 注意:调用该方法后,一定要对SqlDataReader进行Close )
        /// </summary>
        /// <param name="strSQL">查询语句</param>
        /// <returns>SqlDataReader</returns>
        public static SqlDataReader ExecuteReader(string SQLString, params SqlParameter[] cmdParms)
        {
            DbHelperSQL   db         = new HelpereStr();
            SqlConnection connection = new SqlConnection(db.connectionString);
            SqlCommand    cmd        = new SqlCommand();

            try
            {
                PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                SqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                cmd.Parameters.Clear();
                return(myReader);
            }
            catch (System.Data.SqlClient.SqlException e)
            {
                throw e;
            }
            //			finally
            //			{
            //				cmd.Dispose();
            //				connection.Close();
            //			}
        }
Exemple #24
0
        /// <summary>
        /// 执行查询语句,返回DataSet
        /// </summary>
        /// <param name="SQLString">查询语句</param>
        /// <returns>DataSet</returns>
        public static DataSet Query(string SQLString, params SqlParameter[] cmdParms)
        {
            DbHelperSQL db = new HelpereStr();

            using (SqlConnection connection = new SqlConnection(db.connectionString))
            {
                SqlCommand cmd = new SqlCommand();
                PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                using (SqlDataAdapter da = new SqlDataAdapter(cmd))
                {
                    DataSet ds = new DataSet();
                    try
                    {
                        da.Fill(ds, "ds");
                        cmd.Parameters.Clear();
                    }
                    catch (System.Data.SqlClient.SqlException ex)
                    {
                        throw new Exception(ex.Message);
                    }
                    return(ds);
                }
            }
        }