Want to bulk import Excel files into Oracle tables at one time?
Try Withdata FileToDB, a desktop Excel to Oracle converter for Windows, MacOS, and Linux, Convert Excel 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.
- Import Excel to Oracle locally and privately, avoid uploading Excel file(s) to online services.
- Support Windows, Linux, and macOS.
Bulk import Excel files into Oracle tables
Login to Oracle -> Choose Excel files -> Set Oracle tables -> Import Excel files to Oracle tables
Choose Oracle and logon.
Click “Wizard – N Files To N Tables” at task dialog.
Select the “Excel” file type.
then show the wizard.
1. Select a folder that constains Excel files.
2. Config first Excel file importing options.
3. Set “Import Type”.
4. Map Oracle tables to Excel files.
5. Summary. Set “Convert Rows” and “Skip Rows” if need.
6. Import Excel files to Oracle tables, 1 file to 1 table, one by one.
View imported data in Oracle table
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See also:
EXCEL → Oracle reference
Type mapping
| Value kind | in EXCEL | in Oracle |
|---|---|---|
| Int | 1234 (a real numeric cell) | NUMBER(10) |
| Bigint | 9007199254740993 (exact only while the cell stays text) | NUMBER(19) |
| Decimal | 1234.56 (numeric cell, format controls the displayed decimals) | NUMBER(p,s) |
| Float | 1.234E+10 (numeric cell) | BINARY_DOUBLE |
| Text | text cell; leading zeros survive only if the column is text | VARCHAR2(n) |
| Long text | text cell; wraps inside the cell rather than the row | CLOB |
| 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 | BLOB |
| Boolean | TRUE / FALSE (a real boolean cell) | NUMBER(1) |
| JSON | a text cell; the quotes are part of the value | CLOB |
Dialect differences
EXCEL 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 EXCEL | in Oracle |
|---|---|---|
| port | — | 1521 |
| identifiers | Not applicable; a cell holds exactly one value | "double quotes" |
| row limit | — | FETCH FIRST n ROWS ONLY |
| dates | Stored as a serial number; only the cell format makes it lo... | DATE, TIMESTAMP |
| long text | — | CLOB, NCLOB |
| binary | Only as text or an embedded object, not as a data column | BLOB, BFILE |
| 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 |
|---|---|
| Oracle | exp / expdp |
| Oracle (load) | sqlldr (SQL*Loader) |
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