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WITH test_data (json) AS ( SELECT '{"rows":[{"a":"1","b":"1"},{"a":"2", "b":"2"},{"a":"2","b":"2"}]}' FROM DUAL ) SELECT jt.* FROM test_data td, JSON_TABLE(td.json, '$.rows[*]' COLUMNS (row_number FOR ORDINALITY, a INTEGER PATH '$.a', b INTEGER PATH '$.b')) jt
ROW_NUMBER
A
B
1
1
1
2
2
2
3
2
2