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Dev.to
7/22/2026
The original title is: "SQLazy: Querying the Start Timestamp of the Next Group from the Event Table"

The original title is: "SQLazy: Querying the Start Timestamp of the Next Group from the Event Table"

Original: SQLazy: Querying the Start Timestamp of the Next Group from the Event Table

Short summary

This tutorial demonstrates using SQLazy to query start timestamps of consecutive event groups from an event table. The approach uses four steps: sort by timestamp, segment on value changes, aggregate to get effective start dates, and compute end dates using the next group's start. SQLazy's compiler then auto-generates equivalent Oracle SQL with window functions and LAG/LEAD operations.

  • Four-step SQLazy workflow: sort, segment on value change, aggregate, compute end timestamps
  • Compiler auto-generates production-ready Oracle SQL with window functions
  • Eliminates manual SQL debugging by verifying logic at each step

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