Available in versions: Dev (3.20) | Latest (3.19) | 3.18

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JSON_INSERT function

Applies to ✅ Open Source Edition   ✅ Express Edition   ✅ Professional Edition   ✅ Enterprise Edition

The MySQL style JSON_INSERT function is a function that adds but doesn't replace (JSON_REPLACE) a value in a JSON document, given a JSON path.

  JSON_INSERT('{"a":1}', '$.a', 2),
  JSON_INSERT('{"a":1}', '$.b', 2)
           jsonInsert(val(json("{\"a\":1}")), "$.a", 2),
           jsonInsert(val(json("{\"a\":1}")), "$.b", 2)).fetch();

The result would look like this:

| json_insert | json_insert   |
| {"a":1}     | {"a":1,"b":2} |

Dialect support

This example using jOOQ:

jsonInsert(val(json("{\"a\":2}")), "$.a", 2)

Translates to the following dialect specific expressions:

MariaDB, MySQL, SQLite

json_insert('{"a":2}', '$.a', 2)


json_transform('{"a":2}', INSERT '$.a' = 2 IGNORE ON EXISTING)


  WHEN coalesce(
    json_query('{"a":2}', '$.a'),
    json_value('{"a":2}', '$.a')
  ) IS NOT NULL THEN '{"a":2}'
  ELSE json_modify(
    json_modify('{"a":2}', '$.a', ''),
    ('strict ' + '$.a'),

ASE, Access, Aurora MySQL, Aurora Postgres, BigQuery, ClickHouse, CockroachDB, DB2, Derby, DuckDB, Exasol, Firebird, H2, HSQLDB, Hana, Informix, MemSQL, Postgres, Redshift, SQLDataWarehouse, Snowflake, Sybase, Teradata, Trino, Vertica, YugabyteDB


(These are currently generated with jOOQ 3.20, see #10141), or translate your own on our website

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