Aggregated data—The view must contain one or more measures that are aggregated using SUM, AVG, COUNT, or COUNTD. At least one dimension must also be present in the view. Single data sources only—The data must be drawn from a single, primary data source. Explain Data does not work with...
Great for aggregating data from multiple sources and works well with rapidly evolving frontend requirements. However, it shifts complexity to the client side and can allow abusive queries if not properly safeguarded Caching strategies can be more complicated than REST. The best choice between REST an...
This package provides several PL/SQL interfaces to display the plan from different sources: EXPLAIN PLAN command V$SQL_PLAN Automatic Workload Repository (AWR) SQL Tuning Set (STS) SQL Plan Baseline (SPM) Using the EXPLAIN PLAN Command and the DBMS_XPLAN.DISPLAY ...
Across the stable density stratification of the abyssal ocean, deep dense water is slowly propelled upward by sustained, though irregular, turbulent mixing. The resulting mean upwelling determines large-scale oceanic circulation properties like heat and
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2. Data Sources and Methods 2.1. Study Area The Dosso Reserve is located in the southwestern border of Niger (11.8–12.9°N, 2.5–3.5°E), covering approximately 306,000 ha (Figure 1). The western Dosso Reserve is crossed by the Niger River, close to the Niger River valley and Niamey,...
Data operations like filter, sort, or aggregation In addition to the row source tree, the plan table contains information about the following: Optimization, such as the cost and cardinality of each operation Partitioning, such as the set of accessed partitions ...
Data technology has exploded since the early web days, when the primary debate was whether to build your data warehouse on top of Oracle, Microsoft, or open source. Many non-IT leaders today are content to believe that the data is “in the cloud” and that data integration, quality, and...
aBased on data from the Wuxi Statistical Yearbook and other sources, in this paper, an econometric energy supply and demand model was developed to estimate and forecast the Wuxi Energy and CO2-Balance between 2011 and 2050 for the single aggregates of Primary Energy Supply,the transformation sect...
Life in the clouds of Venus, if present in sufficiently high abundance, must be affecting the atmospheric chemistry. It has been proposed that abundant Venusian life could obtain energy from its environment using three possible sulfur energy-metabolisms.