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Load the sample database

PostgreSQL์— ์ƒ˜ํ”Œ ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋ฅผ ๋กœ๋“œํ•˜๋Š” ๋ฐฉ๋ฒ•์— ๋Œ€ํ•ด์„œ ์•Œ์•„๋ณด๋„๋ก ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค.

  1. pgAdmin์„ ์‹œ์ž‘ํ•ฉ๋‹ˆ๋‹ค.

  2. postgres ์‚ฌ์šฉ์ž์˜ ๋น„๋ฐ€๋ฒˆํ˜ธ๋ฅผ ์ž…๋ ฅํ•ฉ๋‹ˆ๋‹ค.

  3. PostgreSQL 12 ๋งˆ์šฐ์Šค ์˜ค๋ฅธ์ชฝ ๋ฒ„ํŠผ์œผ๋กœ ํด๋ฆญํ•˜๊ณ  Create > Database๋ฅผ ์„ ํƒํ•˜์—ฌ ์ƒˆ ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋ฅผ ์ƒ์„ฑํ•˜๊ธฐ ์œ„ํ•œ ๋Œ€ํ™” ์ƒ์ž๋ฅผ ์—ฝ๋‹ˆ๋‹ค.
    Restore-Sample-Database-Step-1

  4. Database์— dvdrental, Owner์— postgres๋ฅผ ์ž…๋ ฅํ•˜๊ณ  Save ๋ฒ„ํŠผ์„ ํด๋ฆญํ•˜์—ฌ dvdrental ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋ฅผ ์ƒ์„ฑํ•ฉ๋‹ˆ๋‹ค.
    Restore-Sample-Database-Step-2

  5. ์ƒ˜ํ”Œ ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋ฅผ ๋‹ค์šด๋กœ๋“œ ํ•˜๊ณ  ์••์ถ•์„ ํ’‰๋‹ˆ๋‹ค. ๋งŽ์€ ํŒŒ์ผ์ด ํฌํ•จ๋œ ๋””๋ ‰ํ† ๋ฆฌ๋ฅผ ์–ป๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.
    DVD-Rental
    ๋‹ค์ด์–ด๊ทธ๋žจ์—์„œ ํ•„๋“œ ์•ž์— ๋‚˜ํƒ€๋‚˜๋Š” ๋ณ„ํ‘œ(*)๋Š” ๊ธฐ๋ณธ ํ‚ค๋ฅผ ๋‚˜ํƒ€๋ƒ…๋‹ˆ๋‹ค.

  6. dvdrental ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋ฅผ ๋งˆ์šฐ์Šค ์˜ค๋ฅธ์ชฝ ๋ฒ„ํŠผ์œผ๋กœ ํด๋ฆญํ•˜๊ณ  Restore ๋ฉ”๋‰ด ํ•ญ๋ชฉ์„ ์„ ํƒํ•ฉ๋‹ˆ๋‹ค.
    Restore-Sample-Database-Step-3

  7. Format์— Directory ์„ ํƒ ํ›„, Filename์„ ์ƒ˜ํ”Œ ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๊ฐ€ ํฌํ•จ๋œ ์œ„์น˜๋กœ ํ•ด์ค๋‹ˆ๋‹ค. ๋งˆ์ง€๋ง‰์œผ๋กœ Role name์„ postgres๋กœ ํ•ด์ฃผ๊ณ  Restore ๋ฒ„ํŠผ์„ ํด๋ฆญํ•ฉ๋‹ˆ๋‹ค.
    Sample-Database-Step(1)

  8. ์ƒ˜ํ”Œ ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋ฅผ ๋ณต์›ํ•˜๋Š”๋ฐ ๋ช‡ ์ดˆ ์ •๋„ ๊ฑธ๋ฆฌ๋ฉฐ, ๋ณต์›์ด ์™„๋ฃŒ๋˜๋ฉด ๋‹ค์Œ๊ณผ ๊ฐ™์€ ์•Œ๋žŒ์ด ํ‘œ์‹œ๋ฉ๋‹ˆ๋‹ค.
    Sample-Database-Step(2)
    ์ด๊ฒƒ์€ ์ƒ˜ํ”Œ ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋ฅผ ์„ฑ๊ณต์ ์œผ๋กœ ์ƒ์„ฑํ•˜๊ณ  ๋‹ค์šด๋กœ๋“œํ•œ ํŒŒ์ผ์—์„œ ๋ณต์› ํ–ˆ์Œ์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค.


์ด ํŠœํ† ๋ฆฌ์–ผ์—์„œ๋Š” PostgreSQL์—์„œ ์ƒ˜ํ”Œ ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋ฅผ ๋ณต์›ํ•˜๋Š” ๋ฐฉ๋ฒ•์— ๋Œ€ํ•ด์„œ ์•Œ์•„๋ณด์•˜์Šต๋‹ˆ๋‹ค.
๋‹ค์Œ ํŠœํ† ๋ฆฌ์–ผ์—์„œ๋Š” ์ƒ˜ํ”Œ ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ PostgreSQL์˜ ๋‹ค์–‘ํ•œ ๊ธฐ๋Šฅ์„ ์‹ค์Šตํ•  ๊ฒƒ์ž…๋‹ˆ๋‹ค.

  • QUERYING DATA
  • FILTERING DATA
  • JOIN TABLES
  • GROUP DATA
  • SET OPERATIONS
    โ€ฆ ์œ„์™€ ๊ฐ™์€ ๋‚ด์šฉ์„ ์‹ค์Šตํ•  ๊ฒƒ์ž…๋‹ˆ๋‹ค.

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