Want to import data from each sheet in an Excel file to a separate Oracle table?
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Import data from each sheet in an Excel file to a separate Oracle table
Login to Oracle -> Select Excel worksheets -> Set Oracle tables -> Excel worksheets to Oracle tables
Choose Oracle and logon.
Click “Wizard – 1 File To N Tables” at task dialog.
Select the “Excel” file type.
then show the wizard.
1. Open Excel file, select worksheets.
2. Show existing Oracle tables, choose “Import Type”.
3. Set Oracle tables.
4. Show summary, set “Convert Rows”.
5. Import data from each sheet in an Excel file to a separate Oracle table.
View imported data in Oracle table
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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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