无法打开数据库＆＃34; testdb＆＃34;登录请求。登录失败

Question

我尝试连接数据库：

string ConnectionString = "SERVER=localhost;" 
                        + "DATABASE=testdb;" 
                        + "User Id=wsuser;" 
                        + "PASSWORD=12345;" 
                        + "Integrated Security=True;";

SqlConnection Connection = new SqlConnection(ConnectionString);
Connection.Open();

错误System.Data.SqlClient.SqlException: "Cannot open database "testdb" requested by the login. The login failed. Login failed for user 'DESKTOP-F9N7UKE\Stolz'."

在mysql中，我的用户wsuser具有testdb数据库的所有优先级。 有人知道如何解决这个异常吗？

Answer 1

Mysql数据库连接就像这样

 string ConnectionString = "SERVER=localhost;" 
                    + "DATABASE=testdb;" 
                    + "User Id=wsuser;" 
                    + "PASSWORD=12345;" 

                     MySqlConnection Connection = new 
                     MySqlConnection(ConnectionString);
                     Connection.Open();

使用MySqlconnection连接Mysql数据库和Sqlconnection连接Sqlserver。