C Database Network Instant Communication Problems

Updated on technology 2024-04-06
15 answers
  1. Anonymous users2024-02-07

    1.Create a socket

    2.Determine the local computer endpoint (IP and port number).

    Binding endpoints. Receive data.

    Send data. Turn off the socket

  2. Anonymous users2024-02-06

    For instant chat software, you mainly need to learn the knowledge of socket communication and understand how ports communicate with each other to deliver messages.

    Here are some examples developed by others, you can refer to the following.

    Hope mine is helpful to you.

  3. Anonymous users2024-02-05

    The underlying communication requires knowledge of socket communication to understand how esframework communicates.

  4. Anonymous users2024-02-04

    Database connection middleware technology, socket communication, I/O streaming, etc.

  5. Anonymous users2024-02-03

    Live chat software, the main thing you need to learn is the knowledge between socket communication, and it is better to learn the knowledge of databases.

  6. Anonymous users2024-02-02

    You need to use the connection technology between the database and C.

  7. Anonymous users2024-02-01

    I'm doing this based on a database...

  8. Anonymous users2024-01-31

    Open the port is not a mapping computer.,Chat is nothing more than operating the database.,There are two ways:

    Mapping a database to an external network is fast, but vulnerable to attack.

    It is the most reasonable way to enable the webservice and server in a remote place, and the server and application client in the local area, and request the webservice to operate the database. Visaul Studio uses Remoting to achieve this, and the so-called socket is full of vulnerabilities for remote effects.

  9. Anonymous users2024-01-30

    First, add a trigger to the data table to be inserted, if there is data insertion, insert this information into an intermediate table, indicating that there is an update; Secondly, a timer is defined on the C side to check whether the intermediate table is updated in a loop, and if so, it prompts to clear the intermediate table after completion.

  10. Anonymous users2024-01-29

    Create a trigger in the database first, and then call the trigger with C.

  11. Anonymous users2024-01-28

    For example, you can set id=0 to be a public chat, then id=someone's ID is a private chat, and id = the ID of several people is **.

  12. Anonymous users2024-01-27

    c Syntax GridView Case:

    Additional databases.

    Modify the connection. Digest it yourself. The most basic connection operation and display data.

    Hope it helps!

  13. Anonymous users2024-01-26

    All you need to do is bind a data source.

  14. Anonymous users2024-01-25

    If you are monitoring the operation of the data of **, you can use triggers, and if you are monitoring the entire database, you can write a service to monitor whether the database is running properly and the operation of the entire database.

  15. Anonymous users2024-01-24

    Get a trigger in the database.

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