显示SQL语句的执行计划。执行计划将显示SQL语句所引用的表采用的扫描方式,如:简单的顺序扫描、索引扫描等。如果引用了多个表,执行计划还会显示使用的JOIN算法。执行计划的最关键部分是语句的预计执行开销,即计划生成器估算执行该语句将花费多长的时间。若指定了ANALYZE
Get the first block cost: start query フェーズが終了した時刻から最初のレコード バッチが返される時刻までの期間。 場合によっては、Get the first block cost は Get result cost に非常に近いか、または一致します。 たとえば、クエリ プランの最初のステップでハッシュ集計演算子が使用...
These days, you can't attend any event without seeing some slides about "Digital Transformation" and how companies like AirBnB, Uber and Netflix are disrupting all sorts of existing industries. At the core of these discussions is the premise that all companies need to become software companies ...
in case of customer created Models, the behaviour is as documented by that Model. The schema of any single instance may be specified via Endpoint's DeployedModels' [Model's][google.cloud.aiplatform.v1.DeployedModel.model] [PredictSchemata's][google.cloud.aiplatform.v1.Model.predict_sch...
yet only ~30 ppm below-cloud H2O—a factor of five lower than the SO2mixing ratio. Thus, Venus’s observed SO2depletion represents a key gap in our understanding of the planet’s atmosphere2,3,4, for which no full-atmosphere model can self-consistently predict via exclusively gas-phase ...
In particular we investigated if survival and growth in young chicks during the nestling stage depends on the number of different functional MHC alleles/individual or specific functional MHC alleles using house sparrows (Passer domesticus) as the model system. In house sparrows, mortality of embryos ...
The S. marcescens pan-genome comprises a total of 57,700 genes: 2811 core genes (present in ≥95% strains), 3286 shell genes (≥15% and <95%), and 51,603 cloud genes (<15% of the strains). The pan-genomes of S. marcescens and of each single cluster are open (slope of the...
(RDA). RDA is the PCA analysis of the fitted value matrix of a multiple linear regression between the response variable matrix and the explanatory variable. Online analysis software in the GENE DENOVO cloud platform was used to perform RDA analysis on terpenoids and terpene synthesis-related ...
process. common keys include del, f2, f10, or esc, but it can vary depending on the computer model. you may need to consult your computer's manual or look for on-screen instructions during startup to determine the correct key to access the uefi settings. what can i do in the uefi ...
This article is shared from the article "Modbus Communication Protocol of the Internet of Things" 16170d7ba16578 in the Huawei Cloud Community 丨 [Please, the Internet of Things! ]", author: jackwangcumt. 1 Overview With the rapid development of IT technology, the current era of intelligence...