Bulk import TXT files into PostgreSQL tables

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Want to bulk import TXT files into PostgreSQL tables at one time?

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

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Bulk import TXT files into PostgreSQL tables

Login to PostgreSQL -> Choose TXT files -> Set PostgreSQL tables -> Import TXT files to PostgreSQL tables

Choose PostgreSQL and logon.

bulk import TXT files into PostgreSQL tables - Choose PostgreSQL and logon

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

bulk import TXT files into PostgreSQL tables - task window

Select the “TXT” file type.

bulk load TXT files into PostgreSQL tables - select file type

then show the wizard.

1. Select a folder that constains TXT files.

Support large ( > 4GB ) TXT files.

bulk import TXT files into PostgreSQL tables - select a folder

2. Config first TXT file importing options.

bulk import TXT files into PostgreSQL tables - config first file

3. Set “Import Type”.

bulk import TXT files into PostgreSQL tables - set tables

4. Map PostgreSQL tables to TXT files.

bulk import TXT files into PostgreSQL tables - map

5. Summary. Set “Convert Rows” and “Skip Rows” if need.

bulk import TXT files into PostgreSQL tables - preview

6. Import TXT files to PostgreSQL tables, 1 file to 1 table, one by one.

bulk import TXT files into PostgreSQL tables - import data

View imported data in PostgreSQL table

bulk import TXT files into PostgreSQL tables - view data

Bulk import TXT files into PostgreSQL tables in command line

Save “bulk TXT files to PostgreSQL tables” session, then you can:

Set scheduled tasks for bulk importing TXT files into PostgreSQL tables

You can schedule and automate this converting task by:

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

FAQ


More about Withdata FileToDB – TXT to PostgreSQL converter

See Video: PostgreSQL bulk import TXT files into tables in one go

See also:

TXT → PostgreSQL reference

Type mapping

Value kindin TXTin PostgreSQL
Int1234, or right-aligned in a fixed-width columninteger
Bigint9007199254740993bigint
Decimal1234.56numeric(p,s)
Float1.234e+10double precision
Textwritten as-is; padding depends on the chosen layoutvarchar(n)
Long textwritten as-istext
Datewhatever the writer chosedate
Datetimewhatever the writer chosetimestamp
Binarynot representablebytea
BooleanY / N, or 1 / 0, or TRUE / FALSEboolean
JSONwritten as-isjsonb

Dialect differences

TXT is a file format and PostgreSQL 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 TXTin PostgreSQL
port—5432
identifiersNone by convention"double quotes"
row limit—LIMIT n
datesWhatever the writer produced; no convention is guaranteedtimestamp, timestamptz, date, time
long text—TEXT
binaryNot supportedBYTEA
separatorWhatever was chosen - often fixed column widths—
encodingNo declaration - UTF-8 works only with a BOM—
typingNone - every field is text—
shapeFree form; a parser has to be told the layoutTables of rows and columns
ceilingNo formal limit—

Command line

SideCommand
PostgreSQLpg_dump or COPY ... TO
PostgreSQL (load)COPY ... FROM

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