DB

1.DBMS ACID 속성

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2.트랜잭션(Transactions)

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3.트랜잭션 격리 수준(Transaction Isolation Level)

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4.공유 락(Shared Lock)과 베타 락(Exclusive Lock)

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5.데이터베이스 커서(Cursor)

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6.커버링 인덱스

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