Withdata Software

Import multiple Excel files to a single Oracle table

Want to import data from multiple Excel files to a single Oracle table?

Try Withdata FileToDB, a desktop Excel to Oracle converter for Windows, MacOS, and Linux, Convert Excel to Oracle, Easy and Fast.

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Import data from multiple Excel files to a single Oracle table

Login to Oracle -> Choose Excel files -> Set Oracle table -> Import multiple Excel files to Oracle

Choose Oracle and logon.

Click “Wizard – N Files To 1 Table” 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. Select a Oracle table and config fields.

4. Preview data will be in Oracle table.

5. Import multiple Excel files to a single Oracle table.

View imported data in Oracle table


More about Excel to Oracle converter

See also:

EXCEL → Oracle reference

Type mapping

Value kindin EXCELin Oracle
Int1234 (a real numeric cell)NUMBER(10)
Bigint9007199254740993 (exact only while the cell stays text)NUMBER(19)
Decimal1234.56 (numeric cell, format controls the displayed decimals)NUMBER(p,s)
Float1.234E+10 (numeric cell)BINARY_DOUBLE
Texttext cell; leading zeros survive only if the column is textVARCHAR2(n)
Long texttext cell; wraps inside the cell rather than the rowCLOB
Datea serial number plus a date cell formatDATE
Datetimea serial number plus a date-time cell formatTIMESTAMP
Binarynot representable as dataBLOB
BooleanTRUE / FALSE (a real boolean cell)NUMBER(1)
JSONa text cell; the quotes are part of the valueCLOB

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.

Propertyin EXCELin Oracle
port—1521
identifiersNot applicable; a cell holds exactly one value"double quotes"
row limit—FETCH FIRST n ROWS ONLY
datesStored as a serial number; only the cell format makes it lo...DATE, TIMESTAMP
long text—CLOB, NCLOB
binaryOnly as text or an embedded object, not as a data columnBLOB, BFILE
separatorCells, not delimiters—
encodingUTF-8 internally, declared in the package—
typingReal cell types: text, number, date, boolean, error—
shapeMultiple sheets, each a flat gridTables of rows and columns
ceiling1,048,576 rows x 16,384 columns per sheet; 255 sheets per w...—

Command line

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

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