Want to export data from Visual FoxPro 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 Visual FoxPro to SQL converter for Windows, Linux, and macOS, Export Visual FoxPro data to SQL, Easy and Fast.
Export data from Visual FoxPro table to SQL file for upserting
Choose Visual FoxPro and logon.
Click “Export From Table” at task dialog.
Select SQL file type.
1. Select Visual FoxPro 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 “Visual FoxPro to SQL” conversion.
- Set scheduled task for “Visual FoxPro to SQL” conversion.
FAQ
More about Withdata DBToFile – Visual FoxPro to SQL converter
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Visual FoxPro → SQL reference
Type mapping
| Value kind | in Visual FoxPro | in SQL |
|---|---|---|
| Int | Numeric(10,0) | INT |
| Bigint | Numeric(19,0) | BIGINT |
| Decimal | Numeric(p,s) | DECIMAL(p,s) |
| Float | Float | DOUBLE PRECISION |
| Text | Character(n) | VARCHAR(n) |
| Long text | Memo | TEXT / CLOB |
| Date | Date | DATE |
| Datetime | DateTime | TIMESTAMP |
| Binary | General | BLOB / BYTEA |
| Boolean | Logical | BOOLEAN / SMALLINT |
| JSON | (none) | JSON / TEXT |
Dialect differences
Visual FoxPro 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 Visual FoxPro | in SQL |
|---|---|---|
| port | (file-based) | — |
| identifiers | — | Two competing conventions: single-quoted literals and diale... |
| row limit | (driver dependent) | — |
| dates | Date (D), DateTime (T) | Depends on the dialect: DATE literals, TO_DATE(), or plain ... |
| long text | Memo (M) | — |
| binary | General (G) | 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... |
No counterpart
- SQL has no equivalent for JSON – it has to be flattened or dropped.
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