The JSON data type can be stored in universal binary (UBJSON) format. Specify UBJSON with the optional STORAGE FORMAT clause in the data type specification syntax.
UBJSON data can be stored inline (inside a row) or outside the row in a LOB subtable or both, depending on the syntax used to specify it:
| Syntax | Default Inline Storage | Maximum Length | LOB/Non-LOB |
|---|---|---|---|
| JSON(n) STORAGE FORMAT UBJSON, where n <= 64,000 | n bytes | n bytes | Non-LOB |
| JSON(n) STORAGE FORMAT UBJSON, where n > 64,000 | 4,096 bytes | n bytes | LOB |
| JSON(n) STORAGE FORMAT UBJSON INLINE LENGTH m | m bytes | n bytes | If n <= m, Non-LOB Otherwise, LOB |
If there is no column length specified, the default length is the maximum. The maximum total size is 16 MB (16,776,192 bytes).
The maximum size for UBJSON reflects the number of bytes in the data. This is different than the case for JSON text, where the maximum size reflects the number of characters in the data.
For more information, see JSON Data Type .