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よろしくお願いします。
select count(distinct "商品分類" ) FROM "shohin"をSQL文で入力し実行すると
重複値は除外された結果が出ます。
これをなまえを付けて保存させ
SQL表示させるとdistinctは消えたSQL文で表示されます。
クエリーでは
関数 COUNT
だけで、distinctは表示されません。
これを実行すると重複値は除外されません。
DISTINCT関数は使用できるのですか?
クエリーで重複値を除外するクエリーの書き方を教えてください。

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