getlasterror 2

MongoDB 3.0 Security Permission access controlMongoDB 3.0 access control has changed a lot, you need to pay attention to this parameter authenticationmechanisms. To use the 2.6 version, I directly specify the following

I. INTRODUCTIONMany people complain that mongodb is a memory database and has no transactions and may be insecure. In fact, this is a misunderstanding of Mongodb. Mongodb has a complete redolog, binlog, and persistence mechanism, do not worry too

VC GetLastError () get the use of error informationWhen you write an application in VC, you often need to deal with error handling issues. Many function calls use only true and false to indicate the result of a function's operation. In the event of

Introduction to the getlasterror () function This is a very simple function. Its function is to obtain the error code generated during the previous function operation.Through the error code, you can find the meaning of each error code in the

Resolve Unable to load R3 module ... VBoxDD.dll (VBOXDD): getlasterror=1790Reference article:

Many Windows API functions do not return values to express error messages. Instead, they allow callers to Use API getlasterror () to obtain error codes.   When debugging the program, we can see that the API function call failed. We want to see the

// Makecert. cpp: defines the entry point for the console application.// # Include "stdafx. H"# Include DWORD makecert ();Void log (char * error_msg, int error_num ); Int _ tmain (INT argc, _ tchar * argv []){Int T;If (t = makecert ()! = 0)Printf ("

Getlasterror command When writing data to a database, MongoDB does not wait for a response message by default. Use the getlasterror command to ensure that the operation has been correctly executed. In many drivers, the getlasterror command is

I recently read the Windows Access Control Model on msdn. Access control is"Use appropriate resources right persons use right resources." So, Step 1: Verify the Operating SystemAuthenticationTo verify whether the user identity is declared by the

Associating processes and ports is a very useful function. You can clearly know which programs are using which ports are helpful for trojan detection and removal. However, although we can use the task manager to browse the process list and use