JPA

1.JPA λ₯Ό κ³΅λΆ€ν•˜κΈ° 이전에..

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2.JPA μ˜μ†μ„±

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3.JPA 연관관계

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4.JPA 였λ₯˜ : ConstraintViolationException

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5.JPA Entity μƒμ„±μžμ— κ΄€ν•˜μ—¬

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