NoSQL -除了SQL(RDBMS) 之外，還有其他儲存結構可以選擇
0000 {"Texas"}
0001 {"Illinois"}
0002 {"Oregon"}
TX
W
A
IL
Key Value
Graph
Document
Amazon's
Highly Available
Key-value
Store
Jan 2012
Fall 2007
Late 2007
Amazon
SimpleDB
Amazon
DynamoDB
Dynamo
Amazon
Neptune
May 2019
Amazon
DocumentDB
Jan 2019
