Elasticsearch 기초 및 데이터 CRUD

Elasticsearch는 REST API를 사용한다..!

우리가 알고있는 PUT, GET, DELETE 같은 명령어를 사용함 

 

RelationDB와의 비교

기본 개념

RelationDB	Elasticsearch
Database	Index
Table	Type
Row	Document
Column	Field
Schema	Mapping

명령어

RelationDB	Elasticsearch
Select	GET
Update	PUT
Insert	POST
Delete	DELETE

 

 

GET

RelationDB

select * from _doc where id = 1

Elasticsearch

curl -XGET localhost:8000/movies/_doc/1

POST

RelationDB

insert into _doc values (1)

Elasticsearch

curl -XPOST localhost:8000/movies/_doc/1 -d '{1}'

PUT

RelationDB

update _doc set xxx where id = 1

Elasticsearch

curl -XPUT localhost:8000/movies/_doc/1 -d '{xxx}'

DELETE

RelationDB

delete from _doc where id = 1

Elasticsearch

curl -XDELETE localhost:8000/movies/_doc/1