Want to batch import EXCEL files into PostgreSQL BYTEA (BLOB) column?
Try Withdata DBBlobEditor, a PostgreSQL BYTEA (BLOB) editor, Bulk import EXCEL into PostgreSQL, 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 
Batch import EXCEL files to PostgreSQL BYTEA (BLOB) column
Run DBBlobEditor, login to PostgreSQL.
Click “Start New Task – Import LOB From Files” at task dialog.
then show the wizard.
1. Configure import EXCEL settings.
2. Bulk import EXCEL files to PostgreSQL BYTEA (BLOB).
then you can see importing results
More about PostgreSQL BYTEA (BLOB) importer
Download Withdata DBBlobEditor
EXCEL → PostgreSQL reference
Type mapping
| Value kind | in EXCEL | in PostgreSQL |
|---|---|---|
| Int | 1234 (a real numeric cell) | integer |
| Bigint | 9007199254740993 (exact only while the cell stays text) | bigint |
| Decimal | 1234.56 (numeric cell, format controls the displayed decimals) | numeric(p,s) |
| Float | 1.234E+10 (numeric cell) | double precision |
| Text | text cell; leading zeros survive only if the column is text | varchar(n) |
| Long text | text cell; wraps inside the cell rather than the row | text |
| Date | a serial number plus a date cell format | date |
| Datetime | a serial number plus a date-time cell format | timestamp |
| Binary | not representable as data | bytea |
| Boolean | TRUE / FALSE (a real boolean cell) | boolean |
| JSON | a text cell; the quotes are part of the value | jsonb |
Dialect differences
EXCEL 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.
| Property | in EXCEL | in PostgreSQL |
|---|---|---|
| port | — | 5432 |
| identifiers | Not applicable; a cell holds exactly one value | "double quotes" |
| row limit | — | LIMIT n |
| dates | Stored as a serial number; only the cell format makes it lo... | timestamp, timestamptz, date, time |
| long text | — | TEXT |
| binary | Only as text or an embedded object, not as a data column | BYTEA |
| separator | Cells, not delimiters | — |
| encoding | UTF-8 internally, declared in the package | — |
| typing | Real cell types: text, number, date, boolean, error | — |
| shape | Multiple sheets, each a flat grid | Tables of rows and columns |
| ceiling | 1,048,576 rows x 16,384 columns per sheet; 255 sheets per w... | — |
Command line
| Side | Command |
|---|---|
| PostgreSQL | pg_dump or COPY ... TO |
| PostgreSQL (load) | COPY ... FROM |
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