I'm using the SAMPLE clause to retrieve random rows from a table. It works fine except when the table is from another database. I'm using a database link between 2 Oracle 11g databases (11.2).
This query returns different random rows everytime I run it:
select * from myTable sample(10);
But this one always returns the same rows and in the same order:
select * from myTable@myDbLink sample(10);
I expected at least the same behavior as the tables are on the same version of Oracle. Why isn't it working? Is there a specific way to write this query so it can work with the link?