Want to parse online CSV file and save to Redshift?
Try Withdata FileToDB, a desktop CSV to Redshift converter for Windows, MacOS, and Linux, Import cloud CSV to Redshift, 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 locally and securely, avoid uploading large or private CSV file(s) to online services.
Import cloud CSV file to Redshift table
Choose Redshift and logon.
Click “Wizard – 1 File To 1 Table” at task dialog.
Select “Source Type” with “Url”.
then show the wizard.
1. Input the CSV file URL, and download the file.
2. Open the saved CSV file.
3. Config target Redshift table.
4. Set rows options.
5. Import cloud CSV to Redshift.
See Redshift table
Import cloud CSV to Redshift in command line
Save “CSV to Redshift” session, then you can:
- Import cloud CSV to Redshift in Windows command line.
- Import cloud CSV to Redshift in Linux command line.
- Import cloud CSV to Redshift in macOS command line.
Set scheduled tasks for importing cloud CSV to Redshift
You can schedule and automate this converting task by:
- Save session and create .bat (Windows) or .sh (Linux/macOS) file for “CSV to Redshift” conversion.
- Set scheduled task for “CSV to Redshift” conversion.
FAQ
More about Withdata FileToDB – CSV to Redshift converter
Download Withdata FileToDB
CSV → Redshift reference
Type mapping
| Value kind | in CSV | in Redshift |
|---|---|---|
| Int | 1234 | integer |
| Bigint | 9007199254740993 | bigint |
| Decimal | 1234.56 | numeric(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 | varchar(max) |
| Date | 2026-09-18 | date |
| Datetime | 2026-09-18 14:30:00 | timestamp |
| Binary | not representable - base64 or hex string | (none) |
| Boolean | TRUE / FALSE, or 1 / 0 depending on the writer | boolean |
| JSON | the whole JSON value quoted, with internal quotes doubled | super |
Dialect differences
CSV is a file format and Redshift is a database server, so the target has to be told the types the file never carried – the rows below are where the two sides diverge.
| Property | in CSV | in Redshift |
|---|---|---|
| port | — | 5439 |
| identifiers | Double quotes; a literal quote is doubled ("" ) | "double quotes" |
| row limit | — | LIMIT n |
| dates | Conventional text: 2026-09-18 or 2026-09-18 14:30:00 | timestamp, date |
| long text | — | VARCHAR(MAX) |
| binary | Not supported | — |
| separator | Comma "," | — |
| encoding | No declaration - UTF-8 works only with a BOM | — |
| typing | None - every field is text | — |
| shape | Flat table, optional header row | Tables of rows and columns |
| ceiling | No formal limit; row count bounded by memory | — |
Command line
| Side | Command |
|---|---|
| Redshift | UNLOAD to S3 |
| Redshift (load) | COPY from S3 |
No counterpart
- CSV values of kind Binary have nowhere to go in Redshift.
Convert your data online, free
Free in-browser converters for CSV, Excel, JSON, XML and SQL: Withdata Online Data Conversion. Large files, batch conversion or scheduling? See the offline desktop apps, or browse all data conversion tools.
