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Database Class/Exam2004_1

ESQL μ—μ„œμ˜ cursor κ°€ ν•„μš”ν•œ 이유λ₯Ό μ“°κ³ , μ‚¬μš©λ²•μ— λŒ€ν•΄ κ°„λ‹¨ν•œ Source Code 예λ₯Ό λ“€μ–΄ μ„€λͺ…ν•˜μ‹œμ˜€

λ‹€μŒμ— λŒ€ν•΄ κ°„λž΅ν•˜κ²Œ μ„€λͺ…ν•˜μ‹œμ˜€

  • ESQLκ³Ό CLI 의 차이점

  • ODBC μ—μ„œμ˜ SQLBindCol

  • JDBC 의 ResultSet μ—μ„œμ˜ next()

λ‹€μŒ 쿼리λ₯Ό μ™„μ„±ν•˜μ‹œμ˜€
- (νŠœν”Œλ³€μˆ˜κ΄€λ ¨. νŠœν”Œ λ³€μˆ˜ μ‚¬μš© μ•ˆν•˜κ³  같은 ν…Œμ΄λΈ”λΌλ¦¬ λΉ„κ΅ν•œ 예)

λ‹€μŒ 쿼리λ₯Ό μ™„μ„±ν•˜μ‹œμ˜€
(with, derived relation, view μ΄μš©κΈˆμ§€)


1. μ΄λ¦„μœΌλ‘œ μ˜€λ¦„μ°¨μˆœ, κ³„μ’Œμ˜ balance. from 절의 ν…Œμ΄λΈ” 2개둜 μ œν•œ.

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6. balance κ°€ -100 μ΄ν•˜μΈ κ³„μ’Œμ— λŒ€ν•΄μ„œ μžλ™ λŒ€μΆœ. 쿼리문 3개둜 κ΅¬ν˜„.
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