using MathNet.Numerics.Distributions;
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using System.Collections.Generic;
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namespace IStation.DAL
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{
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/// <summary>
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///
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/// </summary>
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public class ScheduleConclusion
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{
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public SqlSugarClient Connection
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{
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get { return ConfigHelper.GetSqlSugarClient(); }
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}
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private readonly string _tableNamePrefix = "ScheduleConclusion_Cl_";
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/// <summary>
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/// 判断数据库是否存在表
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/// </summary>
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public bool ExistTable(string runFlag)
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{
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using (SqlSugarClient db = Connection)
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{
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var sql = $"select count(*) from sqlite_master where type = 'table' and name = '{_tableNamePrefix}{runFlag}';";
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var bol = db.Ado.ExecuteCommand(sql) > 0;
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return bol;
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}
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}
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/// <summary>
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/// 判断数据库是否存在表
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/// </summary>
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public bool ExistTable_NativeSql(string runFlag)
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{
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var tables = new List<string>();
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using (var connection = new SQLiteConnection(ConfigHelper.ConnectionString))
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{
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connection.Open();
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string query = "SELECT name FROM sqlite_master WHERE type='table';";
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using (var command = new SQLiteCommand(query, connection))
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{
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using (var reader = command.ExecuteReader())
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{
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while (reader.Read())
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{
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var tableName = reader["name"].ToString();
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tables.Add(tableName);
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}
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}
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}
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}
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var currentTable = $"{_tableNamePrefix}{runFlag}";
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return tables.Contains(currentTable);
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}
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/// <summary>
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/// 大批量插入
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/// </summary>
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public bool BulkInserts_SplitTable(List<Entity.ScheduleConclusion> list)
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{
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if (list == null || list.Count < 1)
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return default;
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using (SqlSugarClient db = Connection)
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{
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///自己来制定定义的规则
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db.CurrentConnectionConfig.ConfigureExternalServices.SplitTableService = new Entity.ScheduleConclusionSubTableService();
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db.CodeFirst
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.SplitTables()//标识分表
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.InitTables<Entity.ScheduleConclusion>(); //程序启动时加这一行,如果一张表没有会初始化一张
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//大数据写入+表不存在会建表
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//自动找表大数据写入
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return db.Fastest<Entity.ScheduleConclusion>().SplitTable().BulkCopy(list) > 0;
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}
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}
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/// <summary>
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/// 大批量插入
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/// </summary>
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public bool BulkInserts_NativeSql(string runFlag, List<Entity.ScheduleConclusion> list)
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{
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var connect = ConfigHelper.ConnectionString;
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SQLiteConnection connection = new SQLiteConnection(connect);//连接对象初始化
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connection.Open();//打开连接
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SQLiteCommand command = new SQLiteCommand(connection);//命令对象初始化
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command.CommandText = $"VACUUM;";//执行VACUUM命令收缩数据库
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command.ExecuteNonQuery();
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SQLiteTransaction transaction = connection.BeginTransaction();//开始事务
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var sql_exist_table = $"select count(*) from sqlite_master where type = 'table' and name = '{_tableNamePrefix}{runFlag}';";
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command.CommandText = sql_exist_table;
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if (command.ExecuteNonQuery() < 1)//没有表就创建表
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{
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var sql_create_table = $"CREATE TABLE {_tableNamePrefix}{runFlag} (\r\n ID BIGINT NOT NULL\r\n PRIMARY KEY,\r\n ScheduleCombineID BIGINT,\r\n RunFlag VARCHAR (255),\r\n Pump1 REAL,\r\n Pump2 REAL,\r\n Pump3 REAL,\r\n Head REAL,\r\n Flow REAL,\r\n Power REAL,\r\n WP REAL,\r\n UWP REAL\r\n);\r\n";
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command.CommandText = sql_create_table;
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command.ExecuteNonQuery();
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}
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for (int i = 0; i < list.Count; i++) //[---使用事务---]执行INSERT命令
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{
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var sql_insert = $"INSERT INTO {_tableNamePrefix}{runFlag}(ID, ScheduleCombineID, RunFlag, Pump1, Pump2, Pump3, Head, Flow, Power, WP, UWP) " +
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$"VALUES ('{list[i].ID}','{list[i].ScheduleCombineID}','{list[i].RunFlag}','{list[i].Pump1}','{list[i].Pump2}','{list[i].Pump3}','{list[i].Head}','{list[i].Flow}','{list[i].Power}','{list[i].WP}','{list[i].UWP}')";
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command.CommandText = sql_insert;
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command.ExecuteNonQuery();
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}
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command.ExecuteScalar();
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transaction.Commit();//提交事务
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connection.Close();//关闭连接
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return true;
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}
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}
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}
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