1、codeproject上面一个多线程执行sql的库。
开发中常常要执行一些耗时的数据操作,比如update、insert、bulk insert、index creation,
若顺序执行,则操作总时间是每个单独sql的时间之和 为了加快速度,采用线程池异步执行的做法,比如要要create 10个表以及加数据,则可以开10个线程去分别执
codeproject上库源码地址 http://www.codeproject.com/Articles/29356/Asynchronous-T-SQL-Execution-Without-Service-Broke
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Data.SqlTypes; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using SqlClrLib.Model; namespace ExampleTransaction { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { //开发中常常要执行一些耗时的数据操作,比如update、insert、bulk insert、index creation, //若顺序执行,则操作总时间是每个单独sql的时间之和, //为了加快速度,引入异步执行的做法,比如要要create 10个表以及加数据,则可以开10个线程去分别执行 } [Microsoft.SqlServer.Server.SqlProcedure] public static int SaveWarehouseFinalData(Guid fileDefinitionId) { Console.WriteLine("Start"); StoredProcedures.Parallel_Declare(new SqlString("Parallel SaveWarehouseFinalData")); //Console.WriteLine("Database connection is ... {0}", StoredProcedures.Block.ConnectionString); //Console.WriteLine("Max threads count is ... {0}", StoredProcedures.Block.MaxThreads); ////ParallelProcedures.Block.IsTransactional = true; ////ParallelProcedures.Parallel_UseTransaction("Serializable"); //依次将存储过程加入到线程池 StoredProcedures.Parallel_AddSql(new SqlString("usp_WarehouseImportSaveToEAV"), new SqlChars(string.Format("usp_WarehouseImportSaveToEAV ‘{0}‘", fileDefinitionId))); StoredProcedures.Parallel_AddSql(new SqlString("usp_WarehouseImportSaveToAdminHistory"), new SqlChars(string.Format("usp_WarehouseImportSaveToAdminHistory ‘{0}‘", fileDefinitionId))); StoredProcedures.Parallel_AddSql(new SqlString("usp_WarehouseImportSaveToValResult"), new SqlChars(string.Format("usp_WarehouseImportSaveToValResult ‘{0}‘", fileDefinitionId))); //执行save操作(此处用的事务,如果不成功会回滚) int failedCount = StoredProcedures.Parallel_Execute(); //Console.WriteLine("Failed count is ... {0}", failedCount); ResultItem[] resultItems = (ResultItem[])StoredProcedures.Parallel_GetExecutionResult(); foreach (ResultItem r in resultItems) { //Console.WriteLine(r.ToString()); } //Console.WriteLine("End..."); return failedCount; } } }
时间: 2024-10-27 14:06:29