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SQL CASE Builder

Build SQL CASE/WHEN/THEN/ELSE expressions visually. Supports simple and searched CASE modes, inline and multiline formatting, uppercase/lowercase keywords, and column aliasing. Runs entirely in your browser — your data never leaves your machine.

sql case query database builder

Published June 1, 2026

All interactive tools run entirely in your browser. Your data never leaves your device.

How It Works

Choose between simple CASE (matching a single expression) or searched CASE (evaluating conditions). Add WHEN/THEN clauses, set an optional ELSE default, and pick your formatting style. The tool generates the SQL expression ready to paste into your query.

Features

  • Two modes: simple CASE (value matching) and searched CASE (condition evaluation)
  • Dynamic clauses: add, remove, and reorder WHEN/THEN pairs
  • Formatting: inline (single line) or multiline (indented) output
  • Keyword case: toggle between UPPERCASE and lowercase SQL keywords
  • Column alias: optional AS clause for naming the result column
  • 5 examples: status labels, age groups, price tiers, boolean flags, grade letters
  • Private: runs entirely in the browser — your data never leaves your machine

Use Cases

  • Building complex CASE expressions for SELECT queries
  • Converting numeric codes to human-readable labels
  • Creating conditional aggregations in reports
  • Learning SQL CASE syntax with visual feedback