chart_variables

Data license: CC-BY

1 row where chartId = 1090

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Link chartId variableId
1090,832282 Potash fertilizer use per hectare of cropland 1090 Nutrient potash K2O (total) | 00003104 || Use per area of cropland | 005159 || Kilograms per hectare 832282

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CREATE TABLE chart_variables
            (
                `chartId` integer NOT NULL,
                `variableId` integer NOT NULL,
                PRIMARY KEY (`chartId`, `variableId`),
                CONSTRAINT `FK_chart_variables_chartId` FOREIGN KEY (`chartId`) REFERENCES `charts` (`id`) ON DELETE CASCADE,
                CONSTRAINT `FK_chart_variables_variableId` FOREIGN KEY (`variableId`) REFERENCES `variables` (`id`) ON DELETE CASCADE
            );