Figure 1-select the appropriate NoSQL,-nosql
NoSQL non-relational database, K-V-type storage structure, that a simple value is how to meet business needs
A group of data can be stored in the value and parsed. Key design is the key design. It is generally designed as a combination of query conditions, separated by a colon in the middle.
The school playground is a rectangle with a length of 100 m and a width of 60 m. You can select a proper scale, calculate the distance on the map, and draw a plan for the school playground.
Select scale = 2000:1
Length: 100 m = 10000, width: 60 m = 6000
Distance on the distance graph
2000= 10000: Long,
Length = 10000 bytes 2000 = 5 cm
Distance width
2000= 6000: width
Width = 6000 bytes 200 = 3 cm
The floor plan of the school playground is a rectangle with a length of 5 cm and a width of 3 cm.
Figure omitted