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chapter_04

๊ด€๊ณ„ํ˜• ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ์„ค๊ณ„ ๊ธฐ๋ณธchevron-right๊ธฐ๋ณธ ํ‚ค, ์™ธ๋ž˜ ํ‚ค, ํ›„๋ณด ํ‚คchevron-right์ •๊ทœํ™”(Normalization) ๋‹จ๊ณ„์™€ ์ ์šฉchevron-rightER ๋‹ค์ด์–ด๊ทธ๋žจ๊ณผ ๋ชจ๋ธ๋ง ๋„๊ตฌchevron-rightPostgreSQL์—์„œ์˜ ํ…Œ์ด๋ธ” ์ƒ์„ฑchevron-right์ฃผ์„(Comment)์„ ํ™œ์šฉํ•œ ๋ฌธ์„œํ™”chevron-right์ปฌ๋Ÿผ ์˜ต์…˜(NOT NULL, DEFAULT ๋“ฑ)chevron-right์ธ๋ฑ์Šค(Index) ์„ค๊ณ„์™€ ์ข…๋ฅ˜chevron-rightํŒŒํ‹ฐ์…˜ ํ…Œ์ด๋ธ” ๊ธฐ์ดˆchevron-right์„ค๊ณ„ ์‚ฌ๋ก€ ๋ถ„์„chevron-right
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