Want to batch export data from Oracle tables to JSON files?
Try Withdata DBToFile, a Oracle to JSON converter for Windows, Linux, and macOS, Export Oracle data to JSON, 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.
- Support Windows, Linux, and macOS.
Batch export data from Oracle tables to JSON files
Login to Oracle -> Select Oracle tables -> Set JSON file options -> Export Oracle tables to JSON
Choose Oracle and logon.
Click “Export All Tables” at task dialog.
Select JSON file type.
1. Select Oracle tables to export.
2. Set JSON options.
3. See Oracle tables to be exported.
4. Set rows options.
5. Export Oracle data to JSON files.
After exporting, you can view output JSON files.
More about Oracle to JSON converter
Download Withdata DBToFile
See also:
- Export Oracle table to JSON
- Export Oracle query results to JSON
- Export multiple similar Oracle tables to one JSON file
Oracle → JSON reference
Type mapping
| Value kind | in Oracle | in JSON |
|---|---|---|
| Int | NUMBER(10) | 1234 (number) |
| Bigint | NUMBER(19) | 9007199254740993 |
| Decimal | NUMBER(p,s) | 1234.56 (number) |
| Float | BINARY_DOUBLE | 1.234e10 (number) |
| Text | VARCHAR2(n) | "text" (string) |
| Long text | CLOB | "multi-line\ntext" (escaped newline inside a string) |
| Date | DATE | "2026-09-18" (string) |
| Datetime | TIMESTAMP | "2026-09-18T14:30:00Z" (string) |
| Binary | BLOB | "base64:..." (string) |
| Boolean | NUMBER(1) | true / false (boolean) |
| JSON | CLOB | nested object or array, kept as structure |
Dialect differences
Oracle is a database server and JSON is a file format, so the gap is wider than a dialect difference – the rows below are where values and structure stop lining up.
| Property | in Oracle | in JSON |
|---|---|---|
| port | 1521 | — |
| identifiers | "double quotes" | Double quotes; backslash escapes |
| row limit | FETCH FIRST n ROWS ONLY | — |
| dates | DATE, TIMESTAMP | No date type: dates arrive as strings and the reader must p... |
| long text | CLOB, NCLOB | — |
| binary | BLOB, BFILE | Not supported natively - base64 inside a string |
| separator | — | Braces and commas |
| encoding | — | UTF-8 by definition |
| typing | — | string, number, boolean, null, object, array - no date type |
| shape | Tables of rows and columns | Nested objects and arrays |
| ceiling | — | Whole document is usually parsed into memory |
Command line
| Side | Command |
|---|---|
| Oracle | exp / expdp |
| Oracle (load) | sqlldr (SQL*Loader) |
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