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01-26 19:30
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๊ด€๋ฆฌ ๋ฉ”๋‰ด

๋ชฉ๋ก๐Ÿ’ป Study !/Database System (5)

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[#01] Introduction

ํ•™๋ถ€ ์ˆ˜์—…์„ ์ •๋ฆฌํ•˜๊ธฐ ์œ„ํ•ด ์˜ฌ๋ฆฌ๋Š” ๊ฒŒ์‹œ๊ธ€์œผ๋กœ, ์ž˜๋ชป๋œ ๋‚ด์šฉ์ด ์žˆ์„ ์‹œ ์ง€์ ํ•ด์ฃผ์‹œ๋ฉด ๊ฐ์‚ฌํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค! ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋ž€ Collection of data ๋ฅผ ๋งํ•˜๋ฉฐ, ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ์‹œ์Šคํ…œ์€ data ๋ฅผ management ํ•˜๋Š” system ์„ ์˜๋ฏธํ•œ๋‹ค. ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ์‹œ์Šคํ…œ์˜ ํ•„์š”์„ฑ์€ ํŒŒ์ผ ์‹œ์Šคํ…œ์˜ ๋‹จ์ (Drawback of file systems)์œผ๋กœ๋ถ€ํ„ฐ ์„ค๋ช…์ด ๊ฐ€๋Šฅํ•˜๋‹ค. ๋ฐ์ดํ„ฐ ๋ฒ ์ด์Šค ์‹œ์Šคํ…œ์ด ๊ณ ์ฐฉํ™”๋˜๊ธฐ ์ด์ „์—๋Š” ํŒŒ์ผ ์‹œ์Šคํ…œ์„ ์‚ฌ์šฉํ•˜์˜€๋Š”๋ฐ, ํŒŒ์ผ ์‹œ์Šคํ…œ์€ ์น˜๋ช…์ ์ธ 7 ๊ฐ€์ง€ ๋‹จ์ ์ด ์กด์žฌํ•œ๋‹ค. 1. Data redundancy and inconsistency : ์‹ค์งˆ์ ์œผ๋กœ๋Š” ๊ฐ™์€ ๋ฐ์ดํ„ฐ์ด์ง€๋งŒ ํŒŒ์ผ ์‹œ์Šคํ…œ ๋‚ด์—์„œ ์ผ์น˜ํ•˜์ง€ ์•Š๋Š” ํ˜„์ƒ์ด ๋ฐœ์ƒํ•  ์ˆ˜ ์žˆ๋‹ค. 2. Diff..