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MULTISET is a collection type in which duplicated elements are allowed. Elements of a MULTISET are allowed to have only one data type. It can have records of other tables.


CREATE TABLE multiset_tbl ( col_1 multiset(CHAR(1)));

INSERT INTO multiset_tbl VALUES ({'c','c','c','b','b', 'a'});

SELECT * FROM multiset_tbl;



  {'a', 'b', 'b', 'c', 'c', 'c'}


SELECT CAST(col_1 AS SET), CAST(col_1 AS LIST) FROM multiset_tbl;

   cast(col_1 as set)   cast(col_1 as sequence)


  {'a', 'b', 'c'}  {'c', 'c', 'c', 'b', 'b', 'a'}