sql server问题 | ProviderBase

本文介绍了sql server问题的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

无法连接到DESKTOP-JMJ11OU \ SYSTEM。

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用户'系统'登录失败。（.Net SqlClient数据提供者）

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如需帮助，请单击：http：//go.microsoft.com/fwlink？ProdName = Microsoft％20SQL％20Server& EvtSrc = MSSQLServer& EvtID = 18456& LinkId = 20476

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服务器名称：DESKTOP-JMJ11OU \ SYSTEM

错误号码：18456

严重性：14

状态：1

行号：65536

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节目位置：

at System.Data.SqlClient.SqlInternalConnectionTds..ctor（DbConnectionPoolIdentity identity，SqlConnectionString connectionOptions，SqlCredential credential，Object providerInfo，String newPassword，SecureString newSecurePassword，Boolean redirectedUserInstance，
SqlConnectionString userConnectionOptions，SessionData reconnectSessionData，DbConnectionPool pool，String accessToken ，Boolean applyTransientFaultHandling，SqlAuthenticationProviderManager sqlAuthProviderManager）

at System.Data.SqlClient.SqlConnectionFactory.CreateConnection（DbConnectionOptions options，DbConnectionPoolKey poolKey，Object poolGroupProviderInfo，DbConnectionPool pool，DbConnection owningConnection，DbConnectionOptions userOptions）

at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection（DbConnection owningConnection，DbConnectionPoolGroup poolGroup，DbConnectionOptions userOptions）

at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection（DbConnection owningConnection，TaskCompletionSource`1 retry，DbConnectionOptions userOptions，DbConnectionInternal oldConnection，DbConnectionInternal& connection）

at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal（DbConnection outerConnection，DbConnectionFactory connectionFactory，TaskCompletionSource`1 retry，DbConnectionOptions userOptions）

在System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection（DbConnection outerConnection，DbConnectionFactory connectionFactory，TaskCompletionSource`1 retry，DbConnectionOptions userOptions）

at System.Data.SqlClient.SqlConnection.TryOpenInner（TaskCompletionSource`1 retry）

at System.Data.SqlClient.SqlConnection.TryOpen（TaskCompletionSource`1 retry）

at System.Data.SqlClient.SqlConnection.Open（）

at Microsoft.SqlServer.Management.UI.ConnectionDlg.Connector.ConnectorThread（）

解决方案

Cannot connect to DESKTOP-JMJ11OU\SYSTEM.

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Login failed for user 'system'. (.Net SqlClient Data Provider)

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For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&EvtSrc=MSSQLServer&EvtID=18456&LinkId=20476

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Server Name: DESKTOP-JMJ11OU\SYSTEM
Error Number: 18456
Severity: 14
State: 1
Line Number: 65536

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Program Location:

at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, DbConnectionPool pool, String accessToken, Boolean applyTransientFaultHandling, SqlAuthenticationProviderManager sqlAuthProviderManager)
at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup, DbConnectionOptions userOptions)
at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
at System.Data.SqlClient.SqlConnection.Open()
at Microsoft.SqlServer.Management.UI.ConnectionDlg.Connector.ConnectorThread()

解决方案

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