[PostgreSQL] ERROR: Cannot insert a duplicate key into unique index
In PostgreSQL, when inserting a new record, I encountered the following error:
ERROR: Cannot insert a duplicate key into unique index tbl_xxxx_pkey
The cause was that the column xxxx_pkey of a record that already exists in the DB was violating the UNIQUE constraint.
UNIQUE 制約[ CONSTRAINT name ] UNIQUE
入力
CONSTRAINT name 制約に付与する任意の名前。
出力
status ERROR: Cannot insert a duplicate key into a unique index. このエラーは、列に重複する値を挿入しようとした、 その実行時に起こります。
・Source: CREATE TABLE
That’s all from the Gemba.
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