Batch convert SQL files to CSV files

Shiji Pan

1 year ago

Want to batch convert SQL files to CSV files?

Try Withdata Data File Converter, a desktop SQL to CSV converter for Windows, MacOS, and Linux, Batch convert SQL to CSV, Easy and Fast.

Can run in GUI mode, Step by Step, just a few mouse clicks.
Can run in Command line, for Scheduled Tasks and Streams.
Convert files locally and privately, avoid uploading large SQL file(s) to online services.
Support Windows, Linux, and macOS.

Click “Start a New Convert” at task dialog.

then show the wizard.

Select From “Files” “SQL” To “Files” “CSV”.

And config the first source SQL file.

List source SQL files.

After converting, you can view output CSV files.

SQL → CSV reference

Value kind	in SQL	in CSV
Int	`INT`	`1234`
Bigint	`BIGINT`	`9007199254740993`
Decimal	`DECIMAL(p,s)`	`1234.56`
Float	`DOUBLE PRECISION`	`1.234e+10`
Text	`VARCHAR(n)`	`quoted only when it contains a comma or a quote`
Long text	`TEXT / CLOB`	`must be quoted; line breaks inside force multi-line records`
Date	`DATE`	`2026-09-18`
Datetime	`TIMESTAMP`	`2026-09-18 14:30:00`
Binary	`BLOB / BYTEA`	`not representable - base64 or hex string`
Boolean	`BOOLEAN / SMALLINT`	`TRUE / FALSE, or 1 / 0 depending on the writer`
JSON	`JSON / TEXT`	`the whole JSON value quoted, with internal quotes doubled`

Both SQL and CSV are file formats, so what differs below is how each one chooses to represent a value.

Property	in SQL	in CSV
identifiers	`Two competing conventions: single-quoted literals and diale...`	`Double quotes; a literal quote is doubled ("" )`
dates	`Depends on the dialect: DATE literals, TO_DATE(), or plain ...`	`Conventional text: 2026-09-18 or 2026-09-18 14:30:00`
binary	`Dialect-specific: X-quoted literal, 0x hex, or decode()`	`Not supported`
separator	`Statement terminators (;)`	`Comma ","`
encoding	`No declaration`	`No declaration - UTF-8 works only with a BOM`
typing	`Types belong to the target database, and they differ betwee...`	`None - every field is text`
shape	`Statements; a dump usually means CREATE TABLE plus INSERT rows`	`Flat table, optional header row`
ceiling	`No formal limit, but a single INSERT statement has to fit i...`	`No formal limit; row count bounded by memory`

For batch jobs, large files and scheduling use the Data File Converter converter — an offline desktop app for Windows, Linux and macOS. Free trial.