Database Systems (資料庫系統)

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Database Systems (資料庫系統)

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Database Systems (資料庫系統) A Quick Review for Final Exam

Storage and Indexing (Ch8-10) Disk space manager Arrange pages on disk (reduce I/O access time) RAID: performance (data striping) & reliability (redundancy) Buffer manager Page replacement algorithms Clock (LRU) algorithm File and access methods Clustered/unclustered indices Tree/Hash indices: B+/ISAM trees, Static hashing, extendible/linear hashing Applications Queries Query Optimization and Execution Relational Operators Files and Access Methods Buffer Manager Disk Space Manager

Query Evaluation (Ch12-14) Relational operators Projection algorithm, Selection algorithm Join algorithms: simple nested, block nested, index nested, sort-merge Sorting: 2-way merge sort, B-way merge sort, replacement sort Query evaluation/optimization Applications Queries Query Optimization and Execution Relational Operators Files and Access Methods Buffer Manager Disk Space Manager

Transaction (Ch16-18) Concurrency control Crash recovery Schedule: serial, serializable, recoverable, conflict serializable, view serializable. Locking: 2PL, Strict 2PL, Conservative 2PL Deadlock: detection (wait-for-graph), prevention (wait-die, wound-wait). Crash recovery ARIES