SQL - PostgreSQL, Extension(plpython3)

2026. 4. 2. 14:42ยท๐Ÿงฉ SQL

PostgreSQL

 

 

โœ… pl(procedural language)python3


ํŒŒ์ด์ฌ์œผ๋กœ procedure๋‚˜ function์„ ์ž‘์„ฑํ•  ์ˆ˜ ์žˆ๋‹ค.

 

์„ค์น˜

PostgreSQL์„ ์„ค์น˜ํ•  ๋•Œ ๊ฐ™์ด ์„ค์น˜ ๋˜์—ˆ๋˜ Application Stack Builder๋ฅผ ์‹คํ–‰ ์‹œํ‚จ๋‹ค.

Application Stack Builder๋กœ PostgreSQL Extension์„ ์„ค์น˜ํ•  ์ˆ˜ ์žˆ๋‹ค.

 

์‹คํ–‰์‹œํ‚ค๊ณ  EDB Language Pack์„ ๋‹ค์šด๋กœ๋“œ ๋ฐ›๋Š”๋‹ค.

 

์„ค์น˜๊ฐ€ ์™„๋ฃŒ๋˜๋ฉด ๋‹ค์Œ ๋ช…๋ น์–ด๋ฅผ ์‹คํ–‰์‹œ์ผœ ํ™•์žฅ ํ”„๋กœ๊ทธ๋žจ์„ ํ™œ์„ฑํ™” ์‹œํ‚จ๋‹ค.

CREATE EXTENSION plpython3u;

 

*์ฃผ์˜*

์„ค์น˜ ๋˜์–ด ์žˆ๋Š” python, postgreSQL์˜ ํ™˜๊ฒฝ์ด ๋งž์•„์•ผ ํ•œ๋‹ค.
๋‘˜ ๋‹ค ์‚ฌ์ดํŠธ์—์„œ ์„ค์น˜ํ•œ ํ™˜๊ฒฝ์ด๊ฑฐ๋‚˜, ๋‘˜ ๋‹ค homebrew๋กœ ์„ค์น˜ํ•œ ํ™˜๊ฒฝ์ด์–ด์•ผ ํ•œ๋‹ค.

์ด ๋•Œ, homebrew๋กœ ์„ค์น˜ํ–ˆ์„ ๊ฒฝ์šฐ plpython3u extension์„ ์‚ฌ์šฉํ•  ์ˆ˜ ์—†๋‹ค.

Homebrew PostgreSQL์—๋Š” plpython3u๊ฐ€ ๊ธฐ๋ณธ ํฌํ•จ๋˜์ง€ ์•Š์•„์„œ, ๊ณต์‹ PostgreSQL์„ ์‚ฌ์šฉํ•ด์•ผ ํ•œ๋‹ค

 

์‚ฌ์šฉ

CREATE OR REPLACE FUNCTION hello_world_py(name TEXT)
RETURNS TEXT AS
$$
	def hello(name):
		return f'hello {name}';
	output = hello(name)
	return output
$$
LANGUAGE plpython3u;

๋ง ๊ทธ๋Œ€๋กœ python ์ฝ”๋“œ๋กœ ์ž‘์„ฑํ•  ์ˆ˜ ์žˆ๋‹ค.

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  • SQL - PostgreSQL, DCL(Data Control Language)
  • SQL - PostgreSQL, Transaction, Save Point, Isolation Level, Phenomena
  • SQL - PostgreSQL, Function, Procedure
  • SQL - PostgreSQL, UNNEST, DISTINCT, FULL OUTER JOIN
j2yonghwa
j2yonghwa
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