Ajuda del LibreOffice 25.2
In the Query Properties dialog you can set two properties of the SQL Query, i.e. whether to return distinct values, and whether to limit the result set.
A la vista de disseny de consulta, trieu Edita ▸ Propietats de la consulta.
Expands the created select statement of the SQL Query in the current column by the parameter DISTINCT. The consequence is that identical values occurring multiple times are listed only once.
Permet afegir un límit per a definir el nombre màxim de registres que s'han de retornar.