SQL Formatter は何をしますか？
SQL Formatter はブラウザ上でデータを整形・検証するツールで、結果と制限を明確に示します。 検証済みの機能： Multiple SQL dialects, Keyword casing, Two-space formatting, SQL minification.
Format for review; minify for compact transport
Formatted SQL emphasizes clauses and indentation for human review. Compact SQL is harder to audit. This mode preserves comments, optimizer hints, and meaningful newlines; it may remain on multiple lines.
使い方
- Choose Format SQL or Minify SQL and select the database dialect that matches the query.
- Paste SQL into Input and select Convert.
- Review the output against the target database; formatting does not execute or validate the query.
実際の入出力例
Minify a simple query
入力
SELECT id, name
FROM users
WHERE active = true;出力
SELECT id, name FROM users WHERE active = true;Minify collapses whitespace outside quoted values, identifiers, and comments. It preserves comments and hints and does not verify query semantics.
一般的なエラーと対処
| 症状 | 原因 | 対処 |
|---|---|---|
| Formatting fails near a vendor-specific clause. | The selected dialect does not recognize syntax used by the query. | Choose the matching MySQL, PostgreSQL, SQLite, SQL Server, BigQuery, or Standard SQL dialect. |
| Formatted SQL still fails in the database. | A formatter does not know the schema, permissions, parameter values, or runtime types. | Run the query through the database parser or a safe test environment after formatting. |
Important behavior of SQL Formatter
このツール固有の制限： Formatting does not validate database schema, permissions, or query semantics.
標準と実装の参考資料
- sql-formatter official repository (opens in a new tab)Documents the supported dialects and formatter behavior used by this page.
SQL Formatter — FAQ
Does the SQL Formatter upload my input?
No. Processing runs in the current browser tab, and the page does not send tool input to a KitLumi processing endpoint.
What input does the SQL Formatter accept?
It accepts SQL for Standard SQL, MySQL, PostgreSQL, SQLite, SQL Server, or BigQuery. The workspace checks the input and reports malformed or unsupported values before it produces a result.
What does the SQL Formatter produce?
It produces formatted or compact SQL text. Copy and download controls appear when the output format supports them.
What limitation should I know?
Formatting does not validate database schema, permissions, or query semantics.
更新内容
実質的な更新： SQL Formatter: Added Multiple SQL dialects, Keyword casing, Two-space formatting, SQL minification, responsive controls, explicit runtime disclosure, and task-specific examples and limitations.