oracle 2

[Oracle/SQL] ์‹œํ€€์Šค (Sequence)

0. ์‹œํ€€์Šค๋ž€? - ์ž๋™์œผ๋กœ ์ˆœ์ฐจ์ ์œผ๋กœ ์ฆ๊ฐ€ํ•˜๋Š” ์ˆœ๋ฒˆ์„ ๋ฐ˜ํ™˜ํ•˜๋Š” ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ๊ฐ์ฒด. - ๋ณดํ†ต PK๊ฐ’์—์„œ ์ค‘๋ณต๋ฐœ์ƒ ๋ฐฉ์ง€๋ฅผ ์œ„ํ•˜์—ฌ ์‚ฌ์šฉ 1. ๊ฐœ๊ด„ 1) ์ƒ์„ฑ CREATE SEQUENCE ์‹œํ€€์Šค๋ช…-- ์‹œํ€€์Šค๋ช…: table๋ช…_์ปฌ๋Ÿผ๋ช…_seq START WITH 1-- 1๋ถ€ํ„ฐ ์‹œ์ž‘ INCREMENT BY 1-- 1์”ฉ ์ฆ๊ฐ€ NOCACHE-- ์บ์‹œ ์‚ฌ์šฉX NOCYCLE;-- NOCYCLE ์„ค์ •์‹œ ์ตœ๋Œ€๊ฐ’ ์ƒ์„ฑ ์‹œ ์‹œํ€€์Šค ์ƒ์„ฑ์„ ์ค‘์ง€ํ•œ๋‹ค. - start with, increment by, nocache, nocycle์ด ๋ฌด์—‡์ธ์ง€ ๊ถ๊ธˆํ•˜๋‹ค๋ฉด ์•„๋ž˜์˜ '2. ์˜ต์…˜' ์ฐธ๊ณ  2) ์‚ญ์ œ DROP SEQUENCE ์‹œํ€€์Šค๋ช…; 3) ์กฐํšŒ - ์ „์ฒด ์‹œํ€€์Šค ์กฐํšŒ - ๋งŒ๋“ค์–ด์ ธ ์žˆ๋Š” ๋ชจ๋“  ์‹œํ€€์Šค๋ฅผ ์กฐํšŒํ•œ๋‹ค. SELECT * FROM USER_S..

[Oracle ๊ธฐ์ดˆ] ๊ฐ€๊ฒฉ์ •์ฑ…, CRUD, ์Šคํ‚ค๋งˆ

์ƒํ™œ์ฝ”๋”ฉ ๊ฐ•์ขŒ ์ •๋ฆฌ https://opentutorials.org/course/3885 1. Edition : ์šฉ๋„์— ๋”ฐ๋ผ 4๊ฐ€์ง€ ์ œํ’ˆ์œผ๋กœ ๊ตฌ๋ถ„๋จ. (์ œํ’ˆ๊ตฌ๋ถ„) 1) Express : ๋ฌด๋ฃŒ. ๊ธฐ๋Šฅ์ด ๋งŽ์ด ์ œํ•œ์ . ==> ๋ฌด๋ฃŒ์ด๋ฏ€๋กœ License์™€ ์ƒ๊ด€X 2) Personal : ๊ฐœ์ธ์‚ฌ์šฉ. ==> Name User Plus ๋ฐฉ์‹๋งŒ ์žˆ์Œ & 1๋ช…๋งŒ ์‚ฌ์šฉ ๊ฐ€๋Šฅ. 3) Standard : ๋งŽ์ด ์‚ฌ์šฉ. ==> Name User Plus์™€ Processor ๋ฐฉ์‹ ๋™์‹œ์— ์„ ํƒ ๊ฐ€๋Šฅ. 4) Enterprise : ๊ธฐ์—… ์‚ฌ์šฉ. ๊ธฐ๋Šฅ ์ œํ•œ ์—†์Œ. ==> ๋งˆ์ฐฌ๊ฐ€์ง€๋กœ 2. License : ๊ฐ๊ฐ์˜ ์ œํ’ˆ์„ ์–ด๋–ค ๋ฐฉ์‹์œผ๋กœ ๊ตฌ๋งคํ•  ๊ฒƒ์ธ์ง€. (๊ตฌ๋งค๋ฐฉ์‹) 1) Name User Plus : ์‚ฌ์šฉํ•˜๋Š” ์ปดํ“จํ„ฐ(์œ ์ €)๊ฐ€ ๋ช‡ ๋Œ€์ธ์ง€์— ๋”ฐ๋ผ ..

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