Nov 6, 2025 · Backend Development

How a Drag‑and‑Drop Visual Report Engine Cuts Development Time from Days to Minutes

This article explains the recurring pain points of Java web report development and presents a self‑service visual reporting solution that uses metadata discovery, dynamic SQL generation, and drag‑and‑drop UI to let business users build charts instantly, dramatically reducing development effort.

Drag-and-DropEChartsJava

0 likes · 11 min read

How a Drag‑and‑Drop Visual Report Engine Cuts Development Time from Days to Minutes

dbaplus Community

Jun 14, 2022 · Big Data

How Qunar Built a Scalable BI Platform for Real‑Time Analytics and Self‑Service Reporting

This article details Qunar's multi‑year journey of designing and evolving a full‑stack BI platform—covering data ingestion, storage, query engines, self‑service analytics, and real‑time OLAP—by iterating through three development phases, selecting technologies such as Impala, Kudu, ClickHouse and Apache Druid, and addressing performance, usability and governance challenges to empower business users with fast, reliable data insights.

Apache DruidBIBig Data

0 likes · 24 min read

How Qunar Built a Scalable BI Platform for Real‑Time Analytics and Self‑Service Reporting