How to count the number of identical rows in a DB (flask-sqlalchemy)?

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near_you122022-04-10 13:05:27

SQLite

near_you12, 2022-04-10 13:05:27

How to count the number of identical rows in a DB (flask-sqlalchemy)?

For example, I have a table that is written from the Flask

title id
first 1
second 2
third 3
first 4
third 5

I just need to output:
first -2
second -1
third - 2

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