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   <news:title>#23│PIVOT / UNPIVOT を CASE WHEN で実装する ― 縦横変換SQL</news:title>
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   <news:title>#01│勇者は最初から勇者ではない</news:title>
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   <news:title>#09│ウィンドウ関数を制する者がSQLを制す</news:title>
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   <news:title>#08│「ファーストパーティデータ」という言葉を使っている人の9割が、意味を誤解している</news:title>
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    <news:name>MarTech Farm</news:name>
    <news:language>ja</news:language>
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   <news:title>#07│Treasure Dataを導入したのに使えていない会社に共通する、5つの失敗パターン</news:title>
   <news:publication_date>2026-04-14T04:29:12Z</news:publication_date>
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   <news:title>#22│ROLLUP / CUBE で小計・総計つき集計表を一発で作る</news:title>
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  <lastmod>2026-04-08T01:39:49Z</lastmod>
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    <news:name>MarTech Farm</news:name>
    <news:language>ja</news:language>
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   <news:title>#21│EXCEPT / INTERSECT で顧客セグメントの差分を取る</news:title>
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