Open the table you want to filter.
Click the Filter by Form button, 
.
Type the criterion for the filter, for example, q* in the ENAME field will extract all object names starting with q.
Click the Apply Filter button, 
.
In many cases, you will only work on a limited number of records in a table. To filter the contents of a table, use the built-in Filter by Form function.
Open the table you want to filter.
Click the Filter by Form button, .
Type the criterion for the filter, for example, q* in the ENAME field will extract all object names starting with q.
Click the Apply Filter button, .
Result: The records matching the filter appear.