sql - Get non duplicates of column x but duplicates of column y -

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i have table (call table mytable).

it has data this:

number / name

1    jake 2    chris 3    sally 4    billy 1    tom 5    cathy

(i realize poor setup, didn't luxury of doing setup)

i need query table results returned with:

1    jake 2    chris 3    sally 4    billy 5    cathy

or

2    chris 3    sally 4    billy 1    tom 5    cathy

it not matter name gets returned duplicated number... 1 gets returned.

here not-working attempt:

with (       select number       mytable ),  b (       select number, name       mytable )   select a."number", b."name"  left join b on a."number" = b."number"

use group by ensure each number returned once, , use aggregate function pick 1 of values name:

select number, max(name) name yourtable group number

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