Want to export data from Access query result to JSON using current date as file name?
Try Withdata DBToFile, a Access to JSON converter for Windows, Linux, and macOS, Export Access data to JSON, 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.
- Support Windows, Linux, and macOS.
Export Access query result to JSON file using dynamic filename with date and time
Login to Access -> Enter Access SQL statement -> Set JSON filename template including date -> Export Access query to JSON using current date as file name
Choose Access and logon.
“Export From Query” for “JSON to Access“.
Select JSON file type.
1. Enter Access SQL query.
2. Set JSON file options. Enter filename template, including date, #yyyy# is for current year, #mm# month, #dd# day, #hh# hour, #mi# minute, #ss# second.
3. Set rows options.
4. Export Access query results to JSON file. Dynamically created JSON file name using present system time.
After exporting, you can view output JSON files.
More about Access to JSON converter
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Access → JSON reference
Type mapping
| Value kind | in Access | in JSON |
|---|---|---|
| Int | Long Integer | 1234 (number) |
| Bigint | Long Integer | 9007199254740993 |
| Decimal | Decimal | 1234.56 (number) |
| Float | Double | 1.234e10 (number) |
| Text | Text(n) | "text" (string) |
| Long text | Long Text | "multi-line\ntext" (escaped newline inside a string) |
| Date | Date/Time | "2026-09-18" (string) |
| Datetime | Date/Time | "2026-09-18T14:30:00Z" (string) |
| Binary | OLE Object | "base64:..." (string) |
| Boolean | Yes/No | true / false (boolean) |
| JSON | Long Text | nested object or array, kept as structure |
Dialect differences
Access is a database server and JSON 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 Access | in JSON |
|---|---|---|
| port | (file-based) | — |
| identifiers | [square brackets] | Double quotes; backslash escapes |
| row limit | SELECT TOP n | — |
| dates | Date/Time | No date type: dates arrive as strings and the reader must p... |
| long text | MEMO | — |
| binary | OLE Object | Not supported natively - base64 inside a string |
| separator | — | Braces and commas |
| encoding | — | UTF-8 by definition |
| typing | — | string, number, boolean, null, object, array - no date type |
| shape | Tables of rows and columns | Nested objects and arrays |
| ceiling | — | Whole document is usually parsed into memory |
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