CARDINALITY
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
The CARDINALITY function allows for getting the size of an array.
SELECT CARDINALITY(ARRAY[1, 2])
create.select(cardinality(array(1, 2))).fetch();
The result would look like this:
+-------------+ | cardinality | +-------------+ | 2 | +-------------+
Dialect support
This example using jOOQ:
cardinality(array(1, 2))
Translates to the following dialect specific expressions:
-- AURORA_POSTGRES, H2, HSQLDB, POSTGRES, TRINO, YUGABYTEDB cardinality(ARRAY[1, 2]) -- ACCESS, ASE, AURORA_MYSQL, BIGQUERY, COCKROACHDB, DB2, DERBY, EXASOL, FIREBIRD, HANA, INFORMIX, MARIADB, MEMSQL, MYSQL, -- ORACLE, REDSHIFT, SNOWFLAKE, SQLDATAWAREHOUSE, SQLITE, SQLSERVER, SYBASE, TERADATA, VERTICA /* UNSUPPORTED */
(These are currently generated with jOOQ 3.19, see #10141), or translate your own on our website
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