Abstract: A method and system for realizing data tracking by means of a software development kit, wherein the method comprises: allocating an identifier for an element in a webpage or an application program, via a software development kit, so that the identifier can identify the element in the webpage or the application program; and when the element is triggered, sending the identifier corresponding to the element to a cloud-end server, so that the cloud-end server can acquire the triggered element according to the received identifier. Therefore, the method and system for realizing data tracking by means of a software development kit can avoid manual data tracking, greatly improve the efficiency of data tracking and free up a large amount of time for engineers, thereby saving human resource costs. In addition, the automation of the data definition management realizes automatic and efficient data management as well as version control.

Abstract: A method and system for realizing data tracking by means of a software development kit, wherein the method comprises: allocating an identifier for an element in a webpage or an application program, via a software development kit, so that the identifier can identify the element in the webpage or the application program; and when the element is triggered, sending the identifier corresponding to the element to a cloud-end server, so that the cloud-end server can acquire the triggered element according to the received identifier. Therefore, the method and system for realizing data tracking by means of a software development kit can avoid manual data tracking, greatly improve the efficiency of data tracking and free up a large amount of time for engineers, thereby saving human resource costs. In addition, the automation of the data definition management realizes automatic and efficient data management as well as version control.

Abstract: The disclosed embodiments provide a system for processing data. During operation, the system obtains one or more filters associated with dimensions of a data set. Next, the system calculates a cardinality associated with the one or more filters. The system then adjusts a level of aggregation of a query associated with the one or more filters based on the cardinality and a query result limit for querying of the data set. Finally, the system uses the query to obtain a set of records from the data set.

Abstract: A LED light bar includes several LED light sources and a bar light source mounting base. The light source mounting base is made of an insulating and heat-conducting material. An electrical layer having several metal electricity-conducting plates is embedded in an inner part of the light source mounting base. The LED light sources are welded on the metal electricity-conducting plates to form an electrical electricity-conducting circuit. lighting sides of the LED light sources are exposed on a surface of the light source mounting base. The light source mounting base and the metal electricity-conducting plates are formed into a whole. Each LED light source is covered by lenses.

Abstract: A LED light bar includes several LED light sources and a bar light source mounting base. The light source mounting base is made of an insulating and heat-conducting material. An electrical layer having several metal electricity-conducting plates is embedded in an inner part of the light source mounting base. The LED light sources are welded on the metal electricity-conducting plates to form an electrical electricity-conducting circuit. lighting sides of the LED light sources are exposed on a surface of the light source mounting base. The light source mounting base and the metal electricity-conducting plates are formed into a whole. Each LED light source is covered by lenses.