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Clear your browser cache (including cookies) and then log on to DataV again.
You must add the corresponding DataV server IP to your database whitelist, or ECS security group, based on the network type of the database and region. You can also use the Agent Tool DataV proxy to connect to your database.
You must keep the first row of the CSV file as the header, and make sure that the names of each column are consistent with the field names of the required data structure of the corresponding chart.
Yes. However, you must activate the Internet IP of your database first. You can also use the Agent Tool to connect to DataV.
Obtain the corresponding district border GeoJSON data, and paste it to the Geographical Boundaries interface of the child widget Choropleth Layer in the Basic Flat Map. You can edit the numerical heatmap of each district based on the codes of each district in the Mapping Data tab.
You can input the data in the data panel of carousel table widget. For SQL inquiry, you can assume it as an ordinary 2D table, the aliases of which will be used as headers. For example
select field1 as "Column 1", field2 as "Column 2", field3 as "Column 3" from table.
If you are using an SQL data source, you must obtain data of the
to fields, and splice the longitude and latitude with a comma (,) in the field.
You can express your variables in SQL through
:dot-id. For example,
select car_speed, car_color, car_name from a table where car_ID = :dot-id. These variables can be controlled through parameter transmission by using a URL, for example,