Batch convert HTML files to SQL files

Shiji Pan

1 year ago

Want to batch convert HTML files to SQL files?

Try Withdata Data File Converter, a desktop HTML to SQL converter for Windows, MacOS, and Linux, Batch convert HTML 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 HTML 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” “HTML” To “Files” “SQL”.

And config the first source HTML file.

List source HTML files.

After converting, you can view output SQL files.

HTML → SQL reference

Value kind	in HTML	in SQL
Int	`<td>1234</td>`	`INT`
Bigint	`<td>9007199254740993</td>`	`BIGINT`
Decimal	`<td>1234.56</td>`	`DECIMAL(p,s)`
Float	`<td>1.234e+10</td>`	`DOUBLE PRECISION`
Text	`<td>text</td>`	`VARCHAR(n)`
Long text	`<td>multi-line text</td> (entities for & <)`	`TEXT / CLOB`
Date	`<td>2026-09-18</td>`	`DATE`
Datetime	`<td>2026-09-18 14:30:00</td>`	`TIMESTAMP`
Binary	`not representable in a cell`	`BLOB / BYTEA`
Boolean	`<td>true</td>`	`BOOLEAN / SMALLINT`
JSON	`<td>{"a":1}</td> (quotes escaped)`	`JSON / TEXT`

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

Property	in HTML	in SQL
identifiers	`Attribute values in quotes; entities for reserved characters`	`Two competing conventions: single-quoted literals and diale...`
dates	`Whatever text was rendered`	`Depends on the dialect: DATE literals, TO_DATE(), or plain ...`
binary	`data: URIs inside src attributes`	`Dialect-specific: X-quoted literal, 0x hex, or decode()`
separator	`Tags, not delimiters`	`Statement terminators (;)`
encoding	`Declared in a meta charset tag or the HTTP header`	`No declaration`
typing	`None`	`Types belong to the target database, and they differ betwee...`
shape	`Free form; tables are row/column structures inside markup`	`Statements; a dump usually means CREATE TABLE plus INSERT rows`
ceiling	`No formal limit`	`No formal limit, but a single INSERT statement has to fit i...`

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