1. Memcached

  • 1.1. Memcached tutorial

    Memcached is a free open source, high-performance, distributed in-memory object caching system. Memcached is a software de...
    2025-10-25 13:33:42 UTC
  • 1.2. Linux Memcached installation

    Memcached supports many platforms: Linux, FreeBSD, Solaris, Mac OS, and can also be installed on Windows. Linux system ins...
    2025-10-25 13:33:43 UTC
  • 1.3. Install Memcached under Windows

    Memcached’s Windows platform installation package is not available on the official website. We can download it using the fol...
    2025-10-25 13:33:44 UTC
  • 1.4. Memcached connection

    We can pass. telnet command and specify the host ip and port to connect``Memcached`` service. 1.4.1. Grammar ¶ ...
    2025-10-25 13:33:43 UTC
  • 1.5. Memcached set command

    Memcached set command is used to use the value (data value) is stored in the specified key . If set of k...
    2025-10-25 13:33:43 UTC
  • 1.6. Memcached add command

    Memcached add command is used to use the value (data value) is stored in the specified key . If add of k...
    2025-10-25 13:33:43 UTC
  • 1.7. Memcached replace command

    Memcached replace command is used to replace the existing key value (data value). If key does not exist, t...
    2025-10-25 13:33:43 UTC
  • 1.8. Memcached append command

    Memcached append command is used to report to an existing key value append data after (data value). 1.8.1. ...
    2025-10-25 13:33:43 UTC
  • 1.9. Memcached prepend command

    Memcached prepend command is used to report to an existing key value (data value) append data before. 1.9.1....
    2025-10-25 13:33:42 UTC
  • 1.11. Memcached get command

    Memcached get command to get the data stored in the key in (key) value (data value) if key does not exist, e...
    2025-10-25 13:33:43 UTC
  • 1.12. Memcached gets command

    Memcached gets command with the CAS token store value (data value)if key does not exist, empty is returned. ...
    2025-10-25 13:33:44 UTC
  • 1.13. Memcached delete command

    Memcached delete command is used to delete an existing key . 1.13.1. Syntax: ¶ The delete basic syntax ...
    2025-10-25 13:33:43 UTC
  • 1.14. Memcached incr and decr commands

    Memcached incr and decr command is used for existing key the numeric value of (key) is used for self-increasing or s...
    2025-10-25 13:33:42 UTC
  • 1.15. Memcached stats command

    Memcached stats the command returns statistics such as PID (process number), version number, number of connections, and ...
    2025-10-25 13:33:44 UTC
  • 1.16. Memcached stats items command

    Memcached stats items the command is used to display each slab in item number and storage duration (the number...
    2025-10-25 13:33:43 UTC
  • 1.17. Memcached stats slabs command

    Memcached stats slabs the command is used to display each slab information, including chunk the size, number, ...
    2025-10-25 13:33:43 UTC

Principles, Technologies, and Methods of Geographic Information Systems

 102

In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.