Want to import data from JSON file to Oracle ?
Try Withdata FileToDB, a desktop to Oracle converter for Windows, MacOS, and Linux, Convert to Oracle, 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 privately, avoid uploading large or private file(s) to online services.
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Import data from JSON file to Oracle in 4 steps
Login to Oracle -> Choose JSON file -> Set Oracle table -> Import JSON to Oracle
Choose Oracle and logon.
Click “Wizard – 1 File To 1 Table” at task dialog.
Select the “JSON” file type.
then show the wizard.
Step #1. Open a JSON file.
Step #2. Choose a Oracle table and config fields.
Step #3. Preview data.
Step #4. Import JSON to Oracle.
Import JSON to Oracle in command line
Save session, and then create .bat file for Windows command line, or .sh file for Linux / macOS.
Set scheduled tasks for importing JSON to Oracle
You can schedule and automate this “JSON to Oracle” conversion task by:
- Save session and create .bat (Windows) or .sh (Linux/macOS) file for ” to Oracle” conversion.
- Set scheduled task for ” to Oracle” conversion.
More about Withdata FileToDB – JSON to Oracle converter
Download Withdata FileToDB
Windows 64 bit
Windows 32 bit
Linux .deb (For Debian, Ubuntu) 64 bit
Linux .rpm (For Red Hat, Fedora, SUSE) 64 bit
MacOS 64 bit
JSON → Oracle reference
Type mapping
| Value kind | in JSON | in Oracle |
|---|---|---|
| Int | 1234 (number) | NUMBER(10) |
| Bigint | 9007199254740993 | NUMBER(19) |
| Decimal | 1234.56 (number) | NUMBER(p,s) |
| Float | 1.234e10 (number) | BINARY_DOUBLE |
| Text | "text" (string) | VARCHAR2(n) |
| Long text | "multi-line\ntext" (escaped newline inside a string) | CLOB |
| Date | "2026-09-18" (string) | DATE |
| Datetime | "2026-09-18T14:30:00Z" (string) | TIMESTAMP |
| Binary | "base64:..." (string) | BLOB |
| Boolean | true / false (boolean) | NUMBER(1) |
| JSON | nested object or array, kept as structure | CLOB |
Dialect differences
JSON is a file format and Oracle 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 JSON | in Oracle |
|---|---|---|
| port | — | 1521 |
| identifiers | Double quotes; backslash escapes | "double quotes" |
| row limit | — | FETCH FIRST n ROWS ONLY |
| dates | No date type: dates arrive as strings and the reader must p... | DATE, TIMESTAMP |
| long text | — | CLOB, NCLOB |
| binary | Not supported natively - base64 inside a string | BLOB, BFILE |
| separator | Braces and commas | — |
| encoding | UTF-8 by definition | — |
| typing | string, number, boolean, null, object, array - no date type | — |
| shape | Nested objects and arrays | Tables of rows and columns |
| ceiling | Whole document is usually parsed into memory | — |
Command line
| Side | Command |
|---|---|
| Oracle | exp / expdp |
| Oracle (load) | sqlldr (SQL*Loader) |
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