Want to export data from SQL Server table to JSON lines (JSONL / NDJSON / LDJSON)?
Try Withdata DBToFile, Support Windows, Linux, and macOS, Export SQL Server data to JSON lines (JSONL / NDJSON / LDJSON), 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.
JSON Lines text format (JSONL), also called Newline-delimited JSON (NDJSON), or Line-delimited JSON (LDJSON). JSON Lines files may be saved with the file extension .jsonl, *.ndjson, *.ldjson.
Export data from SQL Server table to JSON lines (JSONL / NDJSON / LDJSON)
Login to SQL Server -> Choose SQL Server table -> Set JSON lines file options -> Export SQL Server to JSON lines (JSONL / NDJSON / LDJSON)
Choose SQL Server and logon.
“Export From Table” for “SQL Server to JSON lines (JSONL / NDJSON / LDJSON)”.
Select JSON file type.
1. Choose SQL Server table.
2. Set JSON lines (JSONL / NDJSON / LDJSON) file options.
3. Set rows options.
4. Export SQL Server data to JSON lines (JSONL / NDJSON / LDJSON) table.
After exporting, you can view output JSON lines (JSONL / NDJSON / LDJSON) file.
More tools for JSONL / NDJSON / LDJSON.
Download Withdata DBToFile
SQL Server → JSON Lines reference
Type mapping
| Value kind | in SQL Server | in JSON Lines |
|---|---|---|
| Int | int | 1234 (number) |
| Bigint | bigint | 9007199254740993 |
| Decimal | decimal(p,s) | 1234.56 (number) |
| Float | float | 1.234e10 (number) |
| Text | nvarchar(n) | "text" (string) |
| Long text | nvarchar(max) | "multi-line\ntext" |
| Date | date | "2026-09-18" (string) |
| Datetime | datetime2 | "2026-09-18T14:30:00Z" (string) |
| Binary | varbinary(max) | "base64:..." (string) |
| Boolean | bit | true / false (boolean) |
| JSON | nvarchar(max) | nested object on the same line |
Dialect differences
SQL Server is a database server and JSON Lines 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 SQL Server | in JSON Lines |
|---|---|---|
| port | 1433 | — |
| identifiers | [square brackets] | Double quotes; backslash escapes (a newline inside a string... |
| row limit | SELECT TOP n | — |
| dates | datetime, datetime2, date, time | No date type: dates arrive as strings |
| long text | nvarchar(max) | — |
| binary | varbinary(max) | Not supported natively - base64 inside a string |
| separator | — | Newline between records |
| encoding | — | UTF-8 by definition |
| typing | — | Same as JSON, but records cannot nest across lines |
| shape | Tables of rows and columns | Flat stream |
| ceiling | — | Streams, so it scales past what a single JSON document can ... |
Command line
| Side | Command |
|---|---|
| SQL Server | bcp |
| SQL Server (load) | bcp, or BULK INSERT |
Convert your data online, free
Free in-browser converters for CSV, Excel, JSON, XML and SQL: Withdata Online Data Conversion. Large files, batch conversion or scheduling? See the offline desktop apps, or browse all data conversion tools.
