火鸟异常：表未知[重复](Firebird exception: Table unknown [duplicate])

 
 
 这个问题在这里已有答案： 
 
 
 
  
 firebird isql：“此数据库中没有表XXXX” 1回答 
 
 
 
 
 我可以使用以下连接字符串建立与Firebird数据库的连接： 
 
ConnectionString = "User ID=SYSDBA;Password=masterkey;Database=localhost:C:\\MyDb\\mydb.FDB;DataSource=localhost;Charset=NONE;";
 
 但是当C＃代码尝试执行查询时，会出现以下错误： 
 
 
 
 动态SQL错误SQL错误代码= -204 表未知 
 
 
 我试过的代码： 
 
using FirebirdSql.Data.FirebirdClient;
...
FbConnection connection = new FbConnection(ConnectionString);
connection.Open();
FbCommand readCommand = new FbCommand("Select Name From Customer;", connection);
FbDataReader myreader = readCommand.ExecuteReader();
 
 肯定存在Customer表（我已经用IBExpert检查过 - 我可以读取数据）。 我在Google上几乎找不到任何东西。 
 
 Firebird 2.5服务器正在我的计算机上运行。 可能是什么问题呢？ 

 
 
This question already has an answer here:
 
 
 
  
 firebird isql: “there is no table XXXX in this database”  1 answer  
 
 
 
 
I could establish the connection to a Firebird database with the following connection string:
 
ConnectionString = "User ID=SYSDBA;Password=masterkey;Database=localhost:C:\\MyDb\\mydb.FDB;DataSource=localhost;Charset=NONE;";
 
But when the C# code tries to execute the query the following error comes:
 
 
 
Dynamic SQL Error SQL Error Code = -204 Table unknown
 
 
The code that I've tried:
 
using FirebirdSql.Data.FirebirdClient;
...
FbConnection connection = new FbConnection(ConnectionString);
connection.Open();
FbCommand readCommand = new FbCommand("Select Name From Customer;", connection);
FbDataReader myreader = readCommand.ExecuteReader();
 
There definitely exists the Customer table (I've checked with IBExpert - in that I can read the data). I hardly found anything on Google.
 
Firebird 2.5 server is running on my Computer. What could be the problem?

原文：https://stackoverflow.com/questions/37369281