how would the SELECT to return only records with more than one
occurrences of id_table1? example:-- Table1-- id --
------------------------- 1 2
-- Table2 id --- | id_table1 | name ---------------------------------------------- 4 ---- | ----- 1 ------ | Tom
5 ---- | ----- 1 ------ | Luci 6 ---- | ----- 2 ------ | Cleber ------>this can not return