'Tree index files' diaporamas de présentation

Tree-Structured Indexes

Tree-Structured Indexes. Content based on Chapter 10 Database Management Systems, (3 rd Edition), by Raghu Ramakrishnan and Johannes Gehrke. McGraw Hill, 2003. B + -Tree Index Files. B + -tree indices are an alternative to indexed-sequential files. Disadvantage of indexed-sequential files

361 views • 35 slides

Indexing (Cont.)

424 views • 33 slides

11 . Indexing and Hashing

11 . Indexing and Hashing. ??????? ?????????? ???. Indexing and Hashing. Used for reducing access (search) time ordered index hash index Criteria 1. access type 2. access time 3. insertion time 4. deletion time 5. space overhead Search key

415 views • 25 slides