This documentation is for the unreleased development version of jOOQ. Click on the above version links to get this documentation for a supported version of jOOQ.
JSON_ARRAY_LENGTH
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
The JSON_ARRAY_LENGTH function is used to count the number of elements in a JSON_ARRAY.
SELECT json_array_length(json_array(1, 2))
create.select(jsonArrayLength(jsonArray(1, 2)))
.fetch();
The result would look like this:
+-------------------+ | json_array_length | +-------------------+ | 1 | +-------------------+
Dialect support
This example using jOOQ:
jsonArrayLength(val(json("[1,2]")))
Translates to the following dialect specific expressions:
Aurora Postgres, CockroachDB, Postgres, YugabyteDB
json_array_length(CAST('[1,2]' AS json))
BigQuery
array_length(json_query_array('[1,2]', '$'))
ClickHouse
JSONArrayLength('[1,2]')
DuckDB, SQLite
json_array_length('[1,2]')
MariaDB, MySQL
json_length('[1,2]')
Oracle
(
SELECT count(*)
FROM JSON_TABLE(
'[1,2]',
'$[*]'
COLUMNS (x varchar2(4000) PATH '$')
)
)
SQLServer
(
SELECT count(*)
FROM openjson('[1,2]')
)
ASE, Access, Aurora MySQL, DB2, Databricks, Derby, Exasol, Firebird, H2, HSQLDB, Hana, Informix, MemSQL, Redshift, SQLDataWarehouse, Snowflake, Sybase, Teradata, Trino, Vertica
/* UNSUPPORTED */
Generated with jOOQ 3.21. Support in older jOOQ versions may differ. Translate your own SQL on our website
Feedback
Do you have any feedback about this page? We'd love to hear it!