Oracle import multiple TSV files into a single table

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Want to import multiple TSV files into a single Oracle table?

Try Withdata FileToDB, a desktop TSV to Oracle converter for Windows, MacOS, and Linux, Convert TSV 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 TSV files to online services.
  • Support Windows, Linux, and macOS.

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Import multiple TSV files into a single Oracle table

Login to Oracle -> Choose TSV files -> Set Oracle table -> Import TSV files to Oracle table

Choose Oracle and logon.

import multiple TSV files to 1 Oracle table - Choose Oracle and logon

Click “Wizard – N Files To 1 Table” at task dialog.

import multiple TSV files to 1 Oracle table - task window

Select the “TSV” file type.

load multiple TSV files to 1 Oracle table - select file type

then show the wizard.

1. Select a folder that constains TSV files.

Support large ( > 4GB ) TSV files.

insert multiple TSV files to one Oracle table - select a folder

2. Config first TSV file importing options.

import multiple TSV files to one Oracle table - config first file

3. Select a Oracle table and config fields.

Merge TSV files into a Oracle table - select table

4. Preview data will be in Oracle table.

put TSV files into a single Oracle table - preview

5. Import multiple TSV files to the Oracle table.

Merge TSV files into a Oracle table - import data

View imported data in Oracle table

load TSV files into a Oracle table - view data

Import multiple TSV files to Oracle in command line

Save “multiple TSV files to Oracle” session, then you can:

Set scheduled tasks for importing multiple TSV files to Oracle

You can schedule and automate this converting task by:

  1. Save session and create .bat (Windows) or .sh (Linux/macOS) file for “TSV to Oracle” conversion.
  2. Set scheduled task for “TSV to Oracle” conversion.

FAQ


More about Withdata FileToDB – TSV to Oracle converter

See also:

TSV → Oracle reference

Type mapping

Value kindin TSVin Oracle
Int1234NUMBER(10)
Bigint9007199254740993NUMBER(19)
Decimal1234.56NUMBER(p,s)
Float1.234e+10BINARY_DOUBLE
Textunquoted; a tab in the value splits the columnVARCHAR2(n)
Long textunquoted; newlines break the rowCLOB
Date2026-09-18DATE
Datetime2026-09-18 14:30:00TIMESTAMP
Binarynot representableBLOB
BooleanTRUE / FALSENUMBER(1)
JSONthe whole JSON value as-is (its own quotes stay)CLOB

Dialect differences

TSV 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.

Propertyin TSVin Oracle
port—1521
identifiersRarely used, which is exactly why tabs in data break it"double quotes"
row limit—FETCH FIRST n ROWS ONLY
datesConventional text: 2026-09-18 or 2026-09-18 14:30:00DATE, TIMESTAMP
long text—CLOB, NCLOB
binaryNot supported - must be encodedBLOB, BFILE
separatorTab—
encodingNo declaration - UTF-8 works only with a BOM—
typingNone - every field is text—
shapeFlat table, optional header rowTables of rows and columns
ceilingNo formal limit—

Command line

SideCommand
Oracleexp / expdp
Oracle (load)sqlldr (SQL*Loader)

Convert your data online, free

Free in-browser converters for CSV, Excel, JSON, XML and SQL: Withdata Online Data Conversion. Large files, batch conversion or scheduling? See the offline desktop apps, or browse all data conversion tools.

New to the format? Read what a TSV file is (and how it differs from CSV).