Convert JSON to SQL

Shiji Pan

1 year ago

Want to convert JSON file to SQL file?

If you want to import JSON file to SQL Server, see this page: JSON to SQL Server.

If you want to import JSON file to SQLite, see this page: JSON to SQLite.

Try Withdata Data File Converter, a desktop JSON to SQL converter for Windows, MacOS, and Linux, Convert JSON to SQL, 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 JSON file(s) to online services.
Support Windows, Linux, and macOS.

“Start a New Convert” for “JSON to SQL”.

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

Support large JSON file ( > 4GB ).

Source JSON file’s content is like this:

After converting, you can view the output SQL file.

JSON → SQL reference

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

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

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

Skip the manual work — convert JSON to SQL online, free (runs in your browser, nothing is uploaded). For large files or batch jobs, use the desktop apps.