JSON predicate
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
The JSON predicate can be used to check if a given expression is valid JSON
SELECT 1
FROM dual
WHERE '{}' IS JSON
AND '{' IS NOT JSON
create.selectOne()
.where(val("{}").isJson())
.and(val("{").isNotJson())
.fetch();
Dialect support
This example using jOOQ:
val("{}").isJson()
Translates to the following dialect specific expressions:
DuckDB, MariaDB, MySQL
json_valid('{}')
Oracle
'{}' IS JSON
Snowflake
(check_json('{}') IS NULL)
SQLDataWarehouse, SQLServer
(isjson('{}') = 1)
ASE, Access, Aurora MySQL, Aurora Postgres, BigQuery, ClickHouse, CockroachDB, DB2, Derby, Exasol, Firebird, H2, HSQLDB, Hana, Informix, MemSQL, Postgres, Redshift, SQLite, Sybase, Teradata, Trino, Vertica, YugabyteDB
/* UNSUPPORTED */
Generated with jOOQ 3.20. Translate your own SQL on our website
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