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Oracle DBの全テーブル名とそのPKを取得するSQL

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接続しているデータベースで有効な全テーブルのPKを取得するSQL(Oracle限定)。

select t1.table_name, t1.column_name
from user_cons_columns t1
where t1.constraint_name in (
    select t2.constraint_name
    from user_constraints t2
    where t2.table_name in (
        select t3.table_name from user_tables t3 where t3.status = 'VALID')
    and t2.constraint_type = 'P')
order by t1.table_name, t1.position;
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