Want to export data from Oracle table to SQL file for upserting?
Upsert: inserts rows into a table if they do not already exist, or updates them if they do.
Try Withdata DBToFile, a Oracle to SQL converter for Windows, Linux, and macOS, Export Oracle data to SQL, Easy and Fast.
Export data from Oracle table to SQL file for upserting
Choose Oracle and logon.
Click “Export From Table” at task dialog.
Select SQL file type.
1. Select Oracle table.
2. Enter data file name.
Set “Convert Mode” to “Upsert”, enter “Update Key”.
3. Set rows options.
4. Export.
After exporting, you can view output upserting SQL file.
You can schedule and automate this converting task by:
- Save session and create .bat (Windows) or .sh (Linux/macOS) file for “Oracle to SQL” conversion.
- Set scheduled task for “Oracle to SQL” conversion.
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Oracle → SQL reference
Type mapping
| Value kind | in Oracle | in SQL |
|---|---|---|
| Int | NUMBER(10) | INT |
| Bigint | NUMBER(19) | BIGINT |
| Decimal | NUMBER(p,s) | DECIMAL(p,s) |
| Float | BINARY_DOUBLE | DOUBLE PRECISION |
| Text | VARCHAR2(n) | VARCHAR(n) |
| Long text | CLOB | TEXT / CLOB |
| Binary | BLOB | BLOB / BYTEA |
| Boolean | NUMBER(1) | BOOLEAN / SMALLINT |
| JSON | CLOB | JSON / TEXT |
Dialect differences
Oracle is a database server and SQL is a file format, so the gap is wider than a dialect difference – the rows below are where values and structure stop lining up.
| Property | in Oracle | in SQL |
|---|---|---|
| port | 1521 | — |
| identifiers | "double quotes" | Two competing conventions: single-quoted literals and diale... |
| row limit | FETCH FIRST n ROWS ONLY | — |
| dates | DATE, TIMESTAMP | Depends on the dialect: DATE literals, TO_DATE(), or plain ... |
| long text | CLOB, NCLOB | — |
| binary | BLOB, BFILE | Dialect-specific: X-quoted literal, 0x hex, or decode() |
| separator | — | Statement terminators (;) |
| encoding | — | No declaration |
| typing | — | Types belong to the target database, and they differ betwee... |
| shape | Tables of rows and columns | Statements; a dump usually means CREATE TABLE plus INSERT rows |
| ceiling | — | No formal limit, but a single INSERT statement has to fit i... |
Command line
| Side | Command |
|---|---|
| Oracle | exp / expdp |
| Oracle (load) | sqlldr (SQL*Loader) |
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