Sammenlign metoder
Gjennomgå de valgte metodene side om side; rader som avviker, er uthevet.
| Spørringsoptimalisering× | Database normalisering× | |
|---|---|---|
| Fagfelt | Informasjonssystemer | Informasjonssystemer |
| Familie | Process / pipeline | Process / pipeline |
| Opprinnelsesår≠ | 1979 | 1970 |
| Opphavsperson≠ | IBM San Jose Research Laboratory | Edgar F. Codd |
| Type≠ | Database optimization technique | Data organization methodology |
| Opprinnelig kilde≠ | Jarke, M., & Koch, J. (1984). Query optimization in database systems. ACM Computing Surveys, 16(2), 111-152. DOI ↗ | Codd, E. F. (1970). A relational model of data for large shared data banks. Communications of the ACM, 13(6), 377-387. DOI ↗ |
| Alias | — | — |
| Relaterte≠ | 2 | 1 |
| Sammendrag≠ | Query optimization is a critical process in database management that transforms high-level SQL queries into efficient execution plans. Developed systematically by IBM researchers in the late 1970s, it aims to minimize execution time, disk I/O, and resource consumption by selecting the most effective access paths and join strategies. | Database normalization is a systematic process for organizing relational database schemas to eliminate redundancy and enforce data integrity. Introduced by Edgar Codd in 1970-1971 as part of the relational database model, it defines a series of normal forms (1NF through BCNF) that progressively eliminate different types of data anomalies. |
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