Convert each table data in a SQL file to a separate JSON file

Shiji Pan

1 year ago

Want to convert each table data in a SQL file to a separate JSON file at one time?

Try Data File Converter, a SQL converting tool for Windows, MacOS, and Linux, Convert tables in a SQL file to JSON files, 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.

Click “Start a New Convert” at task dialog.

then show the wizard.

Select From “File” “SQL” To “Files” “JSON”.

List selected tables.

After converting, you can view output JSON files.

Convert each SQL table to a separate JSON file in command line

You can schedule and automate this SQL table to JSON converting task by:

Withdata DataFileConverter is a data file converter, it can convert each SQL table to a separate JSON file. Download Withdata DataFileConverter

DataFileConverter works fast. It convert millions of rows within a minute.

Of course! DataFileConverter convert each SQL table to a separate JSON file locally, absolutely safe.

Yes, you can. DataFileConverter has Linux, Mac OS, and Windows version.

Yes, you can. DataFileConverter can running in command line, on Linux, Mac OS, and Windows.

Value kind	in SQL	in JSON
Int	`INT`	`1234 (number)`
Bigint	`BIGINT`	`9007199254740993`
Decimal	`DECIMAL(p,s)`	`1234.56 (number)`
Float	`DOUBLE PRECISION`	`1.234e10 (number)`
Text	`VARCHAR(n)`	`"text" (string)`
Long text	`TEXT / CLOB`	`"multi-line\ntext" (escaped newline inside a string)`
Date	`DATE`	`"2026-09-18" (string)`
Datetime	`TIMESTAMP`	`"2026-09-18T14:30:00Z" (string)`
Binary	`BLOB / BYTEA`	`"base64:..." (string)`
Boolean	`BOOLEAN / SMALLINT`	`true / false (boolean)`
JSON	`JSON / TEXT`	`nested object or array, kept as structure`

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

Property	in SQL	in JSON
identifiers	`Two competing conventions: single-quoted literals and diale...`	`Double quotes; backslash escapes`
dates	`Depends on the dialect: DATE literals, TO_DATE(), or plain ...`	`No date type: dates arrive as strings and the reader must p...`
binary	`Dialect-specific: X-quoted literal, 0x hex, or decode()`	`Not supported natively - base64 inside a string`
separator	`Statement terminators (;)`	`Braces and commas`
encoding	`No declaration`	`UTF-8 by definition`
typing	`Types belong to the target database, and they differ betwee...`	`string, number, boolean, null, object, array - no date type`
shape	`Statements; a dump usually means CREATE TABLE plus INSERT rows`	`Nested objects and arrays`
ceiling	`No formal limit, but a single INSERT statement has to fit i...`	`Whole document is usually parsed into 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.