Database

i got a table that create from yii framework.
but i face a trouble that how do i retrieve the specific same data from database?
example
no id gender
1 1010 female
2 1111 male
3 1234 female
4 1221 female

how to do retrieve the data like this
no id gender
1 1010 female
2 1234 female
3 1221 female