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Asked: 2026-06-12T00:08:03+00:00

I have a data table which the primary key is formatted like M00001, M00002,

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I have a data table which the primary key is formatted like M00001, M00002, M00003 … so on. They are all string type. Is there any way to query the database to find the max primary key?

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1 Answer

  1. Editorial Team
    select max(id)
from t

    If the RDBMS does not support max() then:

    select id
from t
order by id desc
limit 1
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