Want to batch import TXT (Text) documents into Oracle CLOB column?
Try Withdata DBBlobEditor, a Oracle CLOB editor, Bulk import TXT into Oracle, 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.
Batch import TXT documents to Oracle CLOB column
Run DBBlobEditor, login to Oracle.
Click “Start New Task – Import LOB From Files” at task dialog.
then show the wizard.
1. Configure import TXT settings.
2. Bulk import TXT files to Oracle CLOB.
then you can see importing results
More about Oracle CLOB importer
Download Withdata DBBlobEditor
TXT → Oracle reference
Type mapping
| Value kind | in TXT | in Oracle |
|---|---|---|
| Int | 1234, or right-aligned in a fixed-width column | NUMBER(10) |
| Bigint | 9007199254740993 | NUMBER(19) |
| Decimal | 1234.56 | NUMBER(p,s) |
| Float | 1.234e+10 | BINARY_DOUBLE |
| Text | written as-is; padding depends on the chosen layout | VARCHAR2(n) |
| Long text | written as-is | CLOB |
| Date | whatever the writer chose | DATE |
| Datetime | whatever the writer chose | TIMESTAMP |
| Binary | not representable | BLOB |
| Boolean | Y / N, or 1 / 0, or TRUE / FALSE | NUMBER(1) |
Dialect differences
TXT 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 TXT | in Oracle |
|---|---|---|
| port | — | 1521 |
| identifiers | None by convention | "double quotes" |
| row limit | — | FETCH FIRST n ROWS ONLY |
| dates | Whatever the writer produced; no convention is guaranteed | DATE, TIMESTAMP |
| long text | — | CLOB, NCLOB |
| binary | Not supported | BLOB, BFILE |
| separator | Whatever was chosen - often fixed column widths | — |
| encoding | No declaration - UTF-8 works only with a BOM | — |
| typing | None - every field is text | — |
| shape | Free form; a parser has to be told the layout | Tables of rows and columns |
| ceiling | No formal limit | — |
Command line
| Side | Command |
|---|---|
| Oracle | exp / expdp |
| Oracle (load) | sqlldr (SQL*Loader) |
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