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Batch extract XML 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 XML files.
then you can see exporting results
More about Oracle CLOB exporter
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Oracle → XML reference
Type mapping
| Value kind | in Oracle | in XML |
|---|---|---|
| Int | NUMBER(10) | <int>1234</int> |
| Bigint | NUMBER(19) | <bigint>9007199254740993</bigint> |
| Decimal | NUMBER(p,s) | <decimal>1234.56</decimal> |
| Float | BINARY_DOUBLE | <float>1.234e10</float> |
| Text | VARCHAR2(n) | <char>text</char> |
| Long text | CLOB | <text>multi-line text</text> (entities for & <) |
| Date | DATE | <date>2026-09-18</date> (xs:date with an XSD) |
| Datetime | TIMESTAMP | <datetime>2026-09-18T14:30:00Z</datetime> (xs:dateTime) |
| Binary | BLOB | <blob>base64...</blob> (xs:base64Binary) |
| Boolean | NUMBER(1) | <bool>true</bool> |
| JSON | CLOB | escaped inside an element, or its own sub-tree |
Dialect differences
Oracle is a database server and XML 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 XML |
|---|---|---|
| port | 1521 | — |
| identifiers | "double quotes" | Attribute values in quotes; entities (& < >) for ... |
| row limit | FETCH FIRST n ROWS ONLY | — |
| dates | DATE, TIMESTAMP | Text (xs:date / xs:dateTime when an XSD is in play) |
| long text | CLOB, NCLOB | — |
| binary | BLOB, BFILE | base64Binary / hexBinary inside text |
| separator | — | Tags, not delimiters |
| encoding | — | Declared in the XML declaration |
| typing | — | None in the markup itself |
| shape | Tables of rows and columns | Arbitrary tree |
| ceiling | — | Whole document is usually parsed into memory |
Command line
| Side | Command |
|---|---|
| Oracle | exp / expdp |
| Oracle (load) | sqlldr (SQL*Loader) |
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