| Presentation | 1993/11/19 Optimizing nested SQL queries Takashi Sato, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | SQL is a database language standardized in the world.In the past, the optimization of nested queries described in SQL was proposed. And its revisited version appeared already.This paper is re- revisited version for this problem.The author proposes a correct and more efficient optimization algorithm.His algorithm requires fewer joins and smaller intermediate results.Detail cost analysis shows that his algorithm is much efficient especially when nested queries has join predicate other than equality. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | SQL / optimization / nested query / computation cost / aggregate function |
| Paper # | DE93-48 |
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| Conference Information | |
| Committee | DE |
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| Conference Date | 1993/11/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Data Engineering (DE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Optimizing nested SQL queries |
| Sub Title (in English) | |
| Keyword(1) | SQL |
| Keyword(2) | optimization |
| Keyword(3) | nested query |
| Keyword(4) | computation cost |
| Keyword(5) | aggregate function |
| 1st Author's Name | Takashi Sato |
| 1st Author's Affiliation | Department of Arts and Sciences,Osaka Kyoiku University() |
| Date | 1993/11/19 |
| Paper # | DE93-48 |
| Volume (vol) | vol.93 |
| Number (no) | 340 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |