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Prepare CSV for PostgreSQL, MySQL or SQLite INSERT

Validate records, preserve identifiers, choose NULL behavior and inspect generated SQL before importing.

Maintained by Toolbench · Updated 10 October 2026

Validate the table before generating SQL

Start with a header row that names each destination column. Headers must be non-empty and unique, and every record must have the same field count. Choose the input delimiter explicitly if auto-detection is ambiguous.

Quoted separators, escaped double quotes and multiline cells are supported. CSV to JSON provides a readable inspection step when you need to confirm individual values before producing a database statement.

name,age
Alice,30
O'Neil,25

Choose dialect, types and NULL policy

Select PostgreSQL, MySQL or SQLite. Identifiers use the dialect’s quote character, and string apostrophes are doubled. The Table name is quoted as one literal name; a dot is not interpreted automatically as a schema qualifier.

Values are strings by default. Enable inference only when safe numeric, boolean and null literals should become SQL values. Leading-zero values stay strings. Empty cells become NULL only when Empty cells become NULL is selected; otherwise an empty string is preserved.

INSERT INTO "records" ("name", "age") VALUES
('Alice', '30'),
('O''Neil', '25');

Check the destination rules

The converter does not create tables, inspect column types, resolve key conflicts or connect to a database. Ensure that the destination table exists and that its constraints accept the values. Generated INSERT statements should be reviewed like any other migration input.

MySQL output assumes its default backslash escape behavior; PostgreSQL backslash strings use escape literals. Check the server SQL mode. For application code, bound parameters are usually easier to maintain than storing a large generated SQL string.

Run a small batch in your own environment

Use a transaction, insert a few representative records and verify row counts and values before importing the complete file. Check apostrophes, newlines, Unicode, empty strings and NULL separately. Follow your database’s backup and rollback workflow.

If the source is a webpage table, convert its HTML first and choose a merged-cell policy. If the source delimiter needs changing, use a parser-aware delimiter converter instead of search and replace.

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