pemformat SQL
Format kueri SQL dengan indentasi yang jelas untuk meninjau klausa, join, filter, komentar, dan ekspresi.
Make SQL queries easier to review
Kueri SQL panjang menyembunyikan join, filter, dan kolom saat ditulis dalam satu baris. Pemformat ini membuat tata letak yang mudah ditinjau.
Pemformatan hanya mengubah tampilan; ini tidak membuktikan keamanan, izin, kinerja, atau kebenaran kueri. Simpan sumber dan periksa diff.
Gunakan kueri yang mewakili alias, join, predikat, agregasi, atau komentar saat elemen itu penting.
Formatting is not SQL validation
SQL expresses statements, identifiers, literals, operators, clauses, joins, subqueries, and comments. Formatting can place these parts on separate lines so their relationships are easier to read.
A formatter parses enough SQL or token-like text to arrange whitespace. It does not validate permissions, table existence, schema contracts, transaction behavior, query plans, locking, or business meaning.
SQL dialects differ. Keywords, quoting, functions, pagination, casts, procedural syntax, and vendor extensions may be formatted differently or may not be recognized by the selected path. Test with the target database tooling.
How to format SQL
- Tempel kueri lengkap yang didukung pada bidang sumber.
- Jalankan pemformat lalu tinjau SELECT, JOIN, kondisi, grouping, ordering, subkueri, dan komentar.
- Bandingkan dengan sumber; pastikan literal, identifier, operator, parameter, dan komentar tetap benar.
- Sebelum menjalankan, gunakan parser, linter, EXPLAIN, tinjauan izin, dan pengujian.
- Hapus kredensial, data pribadi, dan detail skema privat dari contoh.
Formatting method
- Read SQL tokens
The tool reads the supplied SQL and identifies keywords, clauses, expressions, delimiters, literals, comments, and nested regions that can be laid out.
- Apply clause layout
Line breaks and indentation make SELECT fields, JOIN conditions, predicates, grouping, and subqueries easier to scan. The whitespace is presentation output.
- Preserve query text
String contents, identifiers, placeholders, operators, comments, and clause order must remain tied to the source. Review a diff when exact text matters.
Exact SQL dialect support, parser recovery, comment handling, identifier quoting, and error wording should be confirmed in a live engine before being described as fixed behavior.
Read the formatted result
A successful result is a readable arrangement of the supplied SQL. Confirm columns, literals, aliases, joins, conditions, comments, and clause order against the source.
A failure means the documented formatting path could not handle the input. Do not infer exact dialect support or parser recovery without runtime evidence.
If a database later rejects or slows the query, investigate syntax, permissions, schema, plan, indexes, and data separately. Formatting is not execution or optimization.
Kesalahan umum
Treating indentation as a safety or performance review can hide a broad filter, unintended join, or expensive subquery.
Editing string literals, identifiers, placeholders, or comments while formatting can change application behavior.
Assuming one SQL dialect applies to every database can make formatted vendor syntax misleading or invalid.
Pasting credentials or production data into a sample can expose sensitive information even when the query is read-only.
Batasan dan kasus khusus
The documented capability is SQL presentation formatting. It does not guarantee syntax validation, authorization, schema compatibility, performance, transaction safety, or execution results.
Vendor dialects, procedural SQL, quoted identifiers, comments, huge queries, and parser-specific recovery should be tested with the target database tools.
Do not paste confidential SQL or data unless your handling policy permits it. A formatted copy can retain the same secrets and schema details.
Examples
Format a simple SELECT
Apakah format mengubah hasil?
Tempel kueri lengkap yang didukung pada bidang sumber.
Selected columns and the WHERE clause appear on separate readable lines.
Indent a JOIN
Dialek apa yang didukung?
Jalankan pemformat lalu tinjau SELECT, JOIN, kondisi, grouping, ordering, subkueri, dan komentar.
The table aliases and join condition remain visible in the formatted query.
Keep a string literal
Apakah kueri divalidasi?
Bandingkan dengan sumber; pastikan literal, identifier, operator, parameter, dan komentar tetap benar.
The spaces inside the string literal remain part of the value.
Indent aggregation
Bisakah subkueri diformat?
Sebelum menjalankan, gunakan parser, linter, EXPLAIN, tinjauan izin, dan pengujian.
The aggregate, grouping, and ordering clauses become distinct review points.
Keep a comment
Apakah komentar dipertahankan?
Hapus kredensial, data pribadi, dan detail skema privat dari contoh.
The comment remains associated with the statement in the formatted view.
Review a placeholder
Bagaimana parameter diperlakukan?
Tempel kueri lengkap yang didukung pada bidang sumber.
The placeholder stays in the predicate for the calling application to bind.
Frequently asked questions
Apakah format mengubah hasil?
Format seharusnya mengubah tampilan; konfirmasi dengan diff sebelum eksekusi.
Dialek apa yang didukung?
Dukungan bergantung pada parser dan database target.
Apakah kueri divalidasi?
Tidak. Periksa sintaks, izin, skema, rencana, dan tes secara terpisah.
Bisakah subkueri diformat?
Ya jika strukturnya dikenali; periksa tanda kurung dan dialek.
Apakah komentar dipertahankan?
Tujuannya mempertahankan komentar, tetapi uji komentar kompleks.
Bagaimana parameter diperlakukan?
Placeholder harus tetap; jangan menggantinya dengan nilai nyata.
Bolehkah output langsung dijalankan?
Tidak. Validasi di lingkungan terkendali.
Bagaimana membandingkan sebelum dan sesudah?
Simpan sumber, format salinan, dan periksa diff per baris.