Want to batch export Oracle CLOB to JSON files ?
Try Withdata DBBlobEditor, a Oracle CLOB editor, Bulk export Oracle CLOB to JSON files, East and Fast.
- Can run in GUI mode, just a few mouse clicks.
- Can run in Command line, for Scheduled Tasks and Streams.
- Support Windows, Linux, and macOS.
Download Withdata DBBlobEditor
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Linux .deb (For Debian, Ubuntu) 64 bit
Linux .rpm (For Red Hat, Fedora, SUSE) 64 bit
MacOS 64 bit
Batch extract JSON files from Oracle CLOB column
Run DBBlobEditor, login to Oracle.
Click “Start New Task – Export LOB To Files” at task dialog.
then show the wizard.
1. Configure export settings.
2. Bulk export Oracle CLOB to JSON files.
then you can see exporting results
More about Oracle CLOB exporter
Download Withdata DBBlobEditor
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
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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