Want to batch convert CSV files to SQL files?
Try Withdata Data File Converter, a desktop CSV to SQL converter for Windows, MacOS, and Linux, Batch convert CSV 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 CSV file(s) to online services.
- Support Windows, Linux, and macOS.
Batch convert CSV files to SQL files
Select source CSV files -> Set SQL files -> Convert CSV files to SQL files
Click “Start a New Convert” at task dialog.
then show the wizard.
Select From “Files” “CSV” To “Files” “SQL”.
1. Select source CSV files.
And config the first source CSV file.
2. Config target SQL files.
3. Summary.
List source CSV files.
4. Convert CSV files to SQL files, 1 CSV to 1 SQL.
After converting, you can view output SQL files.
More about CSV to SQL converter
Download Withdata DataFileConverter
See Video: Bulk convert CSV files to SQL files without coding
See also:
CSV → SQL reference
Type mapping
| Value kind | in CSV | in SQL |
|---|---|---|
| Int | 1234 | INT |
| Bigint | 9007199254740993 | BIGINT |
| Decimal | 1234.56 | DECIMAL(p,s) |
| Float | 1.234e+10 | DOUBLE PRECISION |
| Text | quoted only when it contains a comma or a quote | VARCHAR(n) |
| Long text | must be quoted; line breaks inside force multi-line records | TEXT / CLOB |
| Date | 2026-09-18 | DATE |
| Datetime | 2026-09-18 14:30:00 | TIMESTAMP |
| Binary | not representable - base64 or hex string | BLOB / BYTEA |
| Boolean | TRUE / FALSE, or 1 / 0 depending on the writer | BOOLEAN / SMALLINT |
| JSON | the whole JSON value quoted, with internal quotes doubled | JSON / TEXT |
Dialect differences
Both CSV and SQL are file formats, so what differs below is how each one chooses to represent a value.
| Property | in CSV | in SQL |
|---|---|---|
| identifiers | Double quotes; a literal quote is doubled ("" ) | Two competing conventions: single-quoted literals and diale... |
| dates | Conventional text: 2026-09-18 or 2026-09-18 14:30:00 | Depends on the dialect: DATE literals, TO_DATE(), or plain ... |
| binary | Not supported | Dialect-specific: X-quoted literal, 0x hex, or decode() |
| separator | Comma "," | Statement terminators (;) |
| encoding | No declaration - UTF-8 works only with a BOM | No declaration |
| typing | None - every field is text | Types belong to the target database, and they differ betwee... |
| shape | Flat table, optional header row | Statements; a dump usually means CREATE TABLE plus INSERT rows |
| ceiling | No formal limit; row count bounded by memory | No formal limit, but a single INSERT statement has to fit i... |
Data File Converter without the manual work
For batch jobs, large files and scheduling use the Data File Converter converter — an offline desktop app for Windows, Linux and macOS. Free trial.
