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Sql Query Parameterizer

Draft SQL placeholders and an ordered list of values for your database driver. Processing stays in your browser.

sql-query-parameterizerLOCAL WORKSPACE

Enabling local controls…

Inputs and settings

Processed in this tab without uploading or storing inputs. Each text field is limited to 32 KiB and complete output to 1 MiB; additional format and model limits apply.

Results

Review the settings and run. Editing inputs clears old results.

Processing model and limits

The tool preserves quoted identifiers, comments and numbers in ORDER BY and GROUP BY expressions. Numeric parameter values are decimal strings so the driver can bind them without rounding. Existing placeholders, question-mark operators, typed date/time/interval literals and adjacent, dollar-quoted, prefixed or backslash-escaped strings are unsupported. Input is limited to 32 KiB and 200 extracted values.

Data and model checked: PostgreSQL SELECT ↗Source tool controls ↗

How to use this tool

Example
SELECT name, created_at FROM users
WHERE active = true ORDER BY 2 DESC;

Choose Dollar $1 and process the example. The output ends in WHERE active = $1 ORDER BY 2 DESC, with one boolean value, true. The 2 still refers to created_at, the second output column. Choose Named or Question mark to match your driver. If the tool rejects DATE '2025-01-01', write the typed binding with an explicit cast in your driver.

Quote table and column names separately →

Usage notes updated: PostgreSQL SELECT ↗

When not to use it

Review the query for your database dialect and bind the reported values through your driver. Table and column names need separate handling, such as an allowlist of supported identifiers.