访问SQL Server 2019时偶尔出现随机C＃崩溃

如何解决访问SQL Server 2019时偶尔出现随机C＃崩溃

我有一个从未在sql Server 2012上出现过问题的应用程序，但是现在尝试在启动时访问sql Server 2019时偶尔会崩溃。

这是事件日志：

Application: MyApplication.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ComponentModel.Win32Exception

Exception Info: System.Data.sqlClient.sqlException
   at System.Data.sqlClient.sqlInternalConnectionTds..ctor(System.Data.ProviderBase.DbConnectionPoolIdentity,System.Data.sqlClient.sqlConnectionString,System.Data.sqlClient.sqlCredential,System.Object,System.String,System.Security.securestring,Boolean,System.Data.sqlClient.SessionData,System.Data.ProviderBase.DbConnectionPool,Boolean)
   at System.Data.sqlClient.sqlConnectionFactory.CreateConnection(System.Data.Common.DbConnectionoptions,System.Data.Common.DbConnectionPoolKey,System.Data.Common.DbConnection,System.Data.Common.DbConnectionoptions)
   at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(System.Data.ProviderBase.DbConnectionPool,System.Data.Common.DbConnectionoptions,System.Data.Common.DbConnectionoptions)
   at System.Data.ProviderBase.DbConnectionPool.CreateObject(System.Data.Common.DbConnection,System.Data.ProviderBase.DbConnectionInternal)
   at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(System.Data.Common.DbConnection,System.Data.ProviderBase.DbConnectionInternal)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(System.Data.Common.DbConnection,UInt32,System.Data.ProviderBase.DbConnectionInternal ByRef)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(System.Data.Common.DbConnection,System.Threading.Tasks.taskcompletionsource`1<System.Data.ProviderBase.DbConnectionInternal>,System.Data.ProviderBase.DbConnectionInternal ByRef)
   at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(System.Data.Common.DbConnection,System.Data.ProviderBase.DbConnectionInternal,System.Data.ProviderBase.DbConnectionInternal ByRef)
   at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(System.Data.Common.DbConnection,System.Data.ProviderBase.DbConnectionFactory,System.Data.Common.DbConnectionoptions)
   at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(System.Data.Common.DbConnection,System.Data.Common.DbConnectionoptions)
   at System.Data.sqlClient.sqlConnection.TryOpenInner(System.Threading.Tasks.taskcompletionsource`1<System.Data.ProviderBase.DbConnectionInternal>)
   at System.Data.sqlClient.sqlConnection.TryOpen(System.Threading.Tasks.taskcompletionsource`1<System.Data.ProviderBase.DbConnectionInternal>)
   at System.Data.sqlClient.sqlConnection.open()
   at System.Data.Common.DbDataAdapter.FillInternal(System.Data.DataSet,System.Data.DataTable[],Int32,System.Data.IDbCommand,System.Data.CommandBehavior)
   at System.Data.Common.DbDataAdapter.Fill(System.Data.DataTable[],System.Data.CommandBehavior)
   at System.Data.Common.DbDataAdapter.Fill(System.Data.DataTable)
   at MyApplication.Program.MyDatabaseMethod(System.String)
   at MyApplication.Program.Main(System.String[])

这是它崩溃的方法：

public static string MyDatabaseMethod()
{
    DataTable dt = new DataTable();

    string query = "SELECT TOP 1 col1 FROM mydatabase.dbo.mytable";
    sqlDataAdapter da = new sqlDataAdapter(query,myConnectionString);

    da.Fill(dt);

    string data = dt.Rows[0].Field<string>("col1");
    return data;
}

这90％的时间有效，但是偶尔的崩溃变得成问题。错误看起来像超时吗？该数据库非常繁忙，并且每晚晚上同时连接该应用程序的多个实例（〜20个），因此我想知道一次登录的数量是否存在并发问题。查询本身正在访问的表不超过30行。