1.11. Memcached get command

发布时间 :2024-03-18 01:40:05 UTC      

Memcached get command to get the data stored in the key in (key) value (data value) if key does not exist, empty is returned.

1.11.1. Syntax:

The get basic syntax format of the command is as follows:

get key

Multiple key separated by spaces, as follows:

get key1 key2 key3

The parameters are described as follows:

  • key :Key value key-value in the structure key used to find cached values

1.11.2. Example

In the following example, we use the runoob as key the expiration time is set to 900 seconds

set runoob 0 900 9
memcached
STORED
get runoob
VALUE runoob 0 9
memcached
END
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.