Can I use… [last] (SQL/JSON path array accessor)

Apache DerbyBigQueryDb2 (LUW)H2MariaDBMySQLOracle DBPostgreSQLSQL ServerSQLite20132015201720192021⊘ 3.5.7 - 3.42.0⊘ 2008R2 - 2022✓ 12+⊘ 8.3 - 11✓ 21c+⊘ 11gR1 - 19c✓ 8.0.11+⊘ 5.0 - 5.7✓ 10.9.2+⊘ 5.1 - 10.8⊘ 1.4.192 - 2.1.214⊘ 9.7 - 11.5.8⊘ 2.0⊘ -

The JSON path accessor [last] picks the last element of a JSON array.

SELECT JSON_VALUE('["A", "B", "C"]', '$[last]')
  FROM …

The JSON path expression [last] in this example returns the value "C" as it is the last element in the JSON array.

Normative References

The SQL/JSON path language first appeared in ISO/IEC 9075:2016-2 as part of optional feature T821, “Basic SQL/JSON query operators”.

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