连接Oracle数据库提示“OraOLEDB.Oracle未注册”错误
dyz2 2005-04-28 09:40:30 No error information available: REGDB_E_CLASSNOTREG(0x80040154).
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.OleDb.OleDbException: No error information available: REGDB_E_CLASSNOTREG(0x80040154).
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[OleDbException (0x80040154): No error information available: REGDB_E_CLASSNOTREG(0x80040154).]
[InvalidOperationException: The 'OraOLEDB.Oracle' provider is not registered on the local machine.]
请问什么原因?