Duplicate rows are allowed.
If there are uniqueness constraints on any column or set of columns in the table definition, then the table cannot have duplicate rows even if it is declared as MULTISET.
Some client utilities have restrictions with respect to MULTISET tables. See the CREATE TABLE (Table Kind Clause) topic “SET and MULTISET” in SQL Data Definition Language - Detailed Topics, B035-1184.
- Duplicate rows are not allowed.
- If the only column in the table is its QITS column, then you cannot specify SET. In this case, the table must be defined, either implicitly or explicitly, as MULTISET. See QITS_column_name.