Last Updated
：2025/12/04
full outer join
Noun
Japanese Meaning
データベースにおいて、2つのテーブルを結合する操作。左側のテーブルと右側のテーブルのすべての行を結果に含め、結合条件に合致しない行についてはNULLなどの補完値を用いる。
（ plural ）
Quizzes for review
(databases) A join yielding a set of records for two tables, where all rows of the left
table are enlisted with all rows of the right
table, even if the join condition does not find any matching row on the left
or on the right
table.
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full outer join
To combine customer and order records even when some entries are missing, the analyst used a full outer join to ensure no rows were lost.
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To combine customer and order records even when some entries are missing, the analyst used a full outer join to ensure no rows were lost.
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