{"id":5244,"date":"2024-08-19T13:41:43","date_gmt":"2024-08-19T04:41:43","guid":{"rendered":"https:\/\/blog.since2020.jp\/?p=5244"},"modified":"2024-08-19T13:41:43","modified_gmt":"2024-08-19T04:41:43","slug":"sub_with","status":"publish","type":"post","link":"https:\/\/since2020.jp\/media\/sub_with\/","title":{"rendered":"\u30b5\u30d6\u30af\u30a8\u30ea\u3068WITH\u53e5\u306e\u4f7f\u3044\u5206\u3051\uff1a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304b\u3089\u8003\u3048\u308b\u53ef\u8aad\u6027\u306e\u91cd\u8981\u6027"},"content":{"rendered":"\n

SQL\u306e\u30af\u30a8\u30ea\u3092\u66f8\u304f\u969b\u306b\u3001\u30b5\u30d6\u30af\u30a8\u30ea\u3084WITH\u53e5\uff08Common Table Expressions\u3001CTE\uff09\u3092\u4f7f\u3046\u5834\u9762\u306b\u76f4\u9762\u3059\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u3069\u3061\u3089\u3092\u9078\u3076\u3079\u304d\u304b\u8ff7\u3046\u3053\u3068\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u305d\u308c\u305e\u308c\u306e\u7279\u5fb4\u3068\u5229\u70b9\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u72b6\u6cc1\u306b\u5fdc\u3058\u305f\u9069\u5207\u306a\u9078\u629e\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n

\u306f\u3058\u3081\u306b<\/h2>\n

SQL\u306e\u30af\u30a8\u30ea\u3092\u66f8\u304f\u969b\u306b\u3001\u30b5\u30d6\u30af\u30a8\u30ea\u3084WITH\u53e5\uff08Common Table Expressions\u3001CTE\uff09\u3092\u4f7f\u3046\u5834\u9762\u306b\u76f4\u9762\u3059\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u3069\u3061\u3089\u3092\u9078\u3076\u3079\u304d\u304b\u8ff7\u3046\u3053\u3068\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u305d\u308c\u305e\u308c\u306e\u7279\u5fb4\u3068\u5229\u70b9\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u72b6\u6cc1\u306b\u5fdc\u3058\u305f\u9069\u5207\u306a\u9078\u629e\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n\n

\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u7d4c\u9a13\u304b\u3089\u611f\u3058\u305f\u30b5\u30d6\u30af\u30a8\u30ea\u306e\u8ab2\u984c<\/h2>\n

\u3042\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u8907\u96d1\u306a\u30b5\u30d6\u30af\u30a8\u30ea\u3092\u591a\u7528\u3057\u305fSQL\u3092\u4f5c\u6210\u3057\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u30af\u30a8\u30ea\u304c\u8907\u96d1\u306b\u306a\u308b\u306b\u3064\u308c\u3001\u30cd\u30b9\u30c8\u3055\u308c\u305f\u30b5\u30d6\u30af\u30a8\u30ea\u304c\u5897\u3048\u3001\u30af\u30a8\u30ea\u5168\u4f53\u306e\u53ef\u8aad\u6027\u304c\u5927\u5e45\u306b\u4f4e\u4e0b\u3059\u308b\u3068\u3044\u3046\u554f\u984c\u306b\u76f4\u9762\u3057\u307e\u3057\u305f\u3002\u7279\u306b\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30c1\u30fc\u30e0\u306e\u4ed6\u306e\u30e1\u30f3\u30d0\u30fc\u304c\u30af\u30a8\u30ea\u3092\u7406\u89e3\u3057\u306b\u304f\u3044\u3068\u611f\u3058\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u3082\u60aa\u5316\u3057\u307e\u3057\u305f\u3002<\/span><\/p>\r\n

\u3053\u306e\u7d4c\u9a13\u304b\u3089\u3001\u7279\u306b\u8907\u96d1\u306a\u30af\u30a8\u30ea\u306e\u5834\u5408\u3001\u53ef\u8aad\u6027\u3092\u91cd\u8996\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3042\u308a\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u30b5\u30d6\u30af\u30a8\u30ea\u3088\u308a\u3082WITH\u53e5\u3092\u4f7f\u3046\u65b9\u304c\u9069\u5207\u3067\u3042\u308b\u3068\u611f\u3058\u307e\u3057\u305f\u3002<\/span><\/p>\r\n

<\/p>\n\n

\u30b5\u30d6\u30af\u30a8\u30ea\u3068WITH\u53e5\u306e\u4f8b\r\n<\/h2>\n

\u307e\u305a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b5\u30f3\u30d7\u30eb\u30c7\u30fc\u30bf\u3092\u8003\u3048\u307e\u3059\u3002<\/span><\/p>\r\n

\"\"<\/strong><\/span><\/p>\r\n

 <\/p>\r\n\u30b5\u30d6\u30af\u30a8\u30ea\u306e\u4f7f\u7528\u4f8b<\/span><\/b>\r\n

\u30b5\u30d6\u30af\u30a8\u30ea\u306f\u3001\u30e1\u30a4\u30f3\u30af\u30a8\u30ea\u5185\u3067\u30c7\u30fc\u30bf\u3092\u4e00\u6642\u7684\u306b\u62bd\u51fa\u3057\u3001\u305d\u306e\u7d50\u679c\u3092\u30e1\u30a4\u30f3\u30af\u30a8\u30ea\u3067\u5229\u7528\u3059\u308b\u5834\u5408\u306b\u6709\u52b9\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u7279\u5b9a\u671f\u9593\u5185\u306b\u58f2\u308c\u305f\u5546\u54c1\u3060\u3051\u3092\u62bd\u51fa\u3057\u3001\u305d\u306e\u5546\u54c1\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u30af\u30a8\u30ea\u3092\u8003\u3048\u307e\u3059\u3002<\/span><\/p>\r\n

\u4f8b\uff1a<\/strong><\/span><\/p>\r\n

\r\n
SELECT product_id, product_name\r\nFROM products\r\nWHERE product_id IN (\r\nSELECT product_id\r\nFROM sales\r\nWHERE sales_date >= '2024-01-01'\r\n);<\/code><\/pre>\r\n<\/div>\r\n
<\/code><\/span><\/p>\r\n
\u7d50\u679c\uff1a<\/strong><\/span><\/p>\r\n
\"\"<\/p>\r\n
\u3053\u306e\u30af\u30a8\u30ea\u3067\u306f\u3001\u30b5\u30d6\u30af\u30a8\u30ea\u30672024-01-01<\/code>\u4ee5\u964d\u306b\u58f2\u308c\u305f\u5546\u54c1\u3092\u62bd\u51fa\u3057\u3001\u305d\u306eproduct_id<\/code>\u306b\u57fa\u3065\u3044\u3066products<\/code>\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u8a72\u5f53\u3059\u308b\u5546\u54c1\u3092\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\r\nWITH\u53e5\u306e\u4f7f\u7528\u4f8b<\/span><\/b>\r\n
\u6b21\u306b\u3001WITH\u53e5\u3092\u4f7f\u3063\u3066\u540c\u3058\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002WITH\u53e5\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u30af\u30a8\u30ea\u306e\u69cb\u9020\u3092\u660e\u78ba\u306b\u3057\u3001\u8aad\u307f\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\r\n
\u4f8b\uff1a<\/strong><\/span><\/span><\/p>\r\n
\r\n
WITH recent_sales AS (\r\nSELECT product_id\r\nFROM sales\r\nWHERE sales_date >= '2024-01-01'\r\n)\r\nSELECT product_id, product_name\r\nFROM products\r\nWHERE product_id IN (\r\nSELECT product_id\r\nFROM recent_sales\r\n);<\/code><\/pre>\r\n<\/div>\r\n
\u7d50\u679c\uff1a<\/strong><\/span><\/p>\r\n
\"\"<\/p>\r\n
\u3053\u306e\u4f8b\u3067\u306f\u3001recent_sales<\/code>\u3068\u3044\u3046CTE\u3092\u5b9a\u7fa9\u3057\u3001\u305d\u306e\u7d50\u679c\u3092\u30e1\u30a4\u30f3\u30af\u30a8\u30ea\u3067\u518d\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\r\n
<\/p>\n\n
\u30b5\u30d6\u30af\u30a8\u30ea vs WITH\u53e5<\/h2>\n
\u30b5\u30d6\u30af\u30a8\u30ea\u3092\u4f7f\u3046\u3079\u304d\u5834\u5408<\/strong><\/span><\/p>\r\n
    \r\n\t
  • \u5358\u7d14\u306a\u30b1\u30fc\u30b9<\/strong>: \u30af\u30a8\u30ea\u304c\u30b7\u30f3\u30d7\u30eb\u3067\u3001\u30cd\u30b9\u30c8\u3055\u308c\u305f\u30af\u30a8\u30ea\u304c\u5c11\u306a\u3044\u5834\u5408\u3002<\/span><\/li>\r\n\t
  • \u4e00\u56de\u306e\u5229\u7528<\/strong>: \u7279\u5b9a\u306e\u30b5\u30d6\u30af\u30a8\u30ea\u7d50\u679c\u304c\u4e00\u5ea6\u3057\u304b\u4f7f\u7528\u3055\u308c\u306a\u3044\u5834\u5408\u3002<\/span><\/li>\r\n\t
  • \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u91cd\u8996\u3055\u308c\u308b\u5834\u5408<\/strong>: \u4e00\u90e8\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a8\u30f3\u30b8\u30f3\u3067\u306f\u3001\u30b5\u30d6\u30af\u30a8\u30ea\u306e\u65b9\u304c\u52b9\u7387\u7684\u306b\u5b9f\u884c\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/li>\r\n<\/ul>\r\n
    WITH\u53e5\u3092\u4f7f\u3046\u3079\u304d\u5834\u5408<\/strong><\/span><\/p>\r\n
      \r\n\t
    • \u8907\u96d1\u306a\u30af\u30a8\u30ea<\/strong>: \u30af\u30a8\u30ea\u304c\u8907\u6570\u306e\u30b5\u30d6\u30af\u30a8\u30ea\u3092\u5fc5\u8981\u3068\u3059\u308b\u5834\u5408\u3001CTE\u3092\u4f7f\u3046\u3053\u3068\u3067\u30af\u30a8\u30ea\u306e\u69cb\u9020\u3092\u660e\u78ba\u306b\u3057\u3001\u7406\u89e3\u3057\u3084\u3059\u304f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/li>\r\n\t
    • \u518d\u5229\u7528\u6027<\/strong>: \u4e00\u6642\u7684\u306a\u7d50\u679c\u30bb\u30c3\u30c8\u3092\u8907\u6570\u56de\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001CTE\u3092\u4f7f\u3046\u3053\u3068\u3067\u540c\u3058\u30af\u30a8\u30ea\u3092\u4f55\u5ea6\u3082\u66f8\u304f\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/span><\/li>\r\n\t
    • \u30c7\u30d0\u30c3\u30b0\u3068\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u5bb9\u6613\u3055<\/strong>: CTE\u306f\u500b\u5225\u306e\u90e8\u5206\u306b\u5206\u3051\u3066\u8003\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u30c7\u30d0\u30c3\u30b0\u3084\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/span><\/li>\r\n<\/ul>\r\n
      <\/p>\n\n
      \u307e\u3068\u3081<\/h2>\n
      \u30b5\u30d6\u30af\u30a8\u30ea\u3068WITH\u53e5\u306b\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u9069\u7528\u5834\u9762\u304c\u3042\u308a\u307e\u3059\u3002\u30b5\u30d6\u30af\u30a8\u30ea\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u4e00\u6642\u7684\u306a\u30c7\u30fc\u30bf\u62bd\u51fa\u306b\u4fbf\u5229\u3067\u3059\u304c\u3001\u30af\u30a8\u30ea\u304c\u8907\u96d1\u306b\u306a\u3063\u305f\u308a\u518d\u5229\u7528\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u306f\u3001WITH\u53e5\u3092\u4f7f\u3046\u3053\u3068\u3067\u30af\u30a8\u30ea\u3092\u6574\u7406\u3057\u3001\u53ef\u8aad\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u79c1\u304c\u7d4c\u9a13\u3057\u305f\u3088\u3046\u306b\u3001\u8907\u96d1\u306a\u30b5\u30d6\u30af\u30a8\u30ea\u306f\u53ef\u8aad\u6027\u304c\u4f4e\u4e0b\u3057\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u56f0\u96e3\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3001\u53ef\u8aad\u6027\u3092\u91cd\u8996\u3057\u3066WITH\u53e5\u3092\u4f7f\u3046\u3053\u3068\u3092\u691c\u8a0e\u3059\u308b\u306e\u3082\u4e00\u3064\u306e\u624b\u3067\u3059\u3002<\/span><\/p>","protected":false},"excerpt":{"rendered":"
      SQL\u306e\u30af\u30a8\u30ea\u3092\u66f8\u304f\u969b\u306b\u3001\u30b5\u30d6\u30af\u30a8\u30ea\u3084WITH\u53e5\uff08Common Table Expressions\u3001CTE\uff09\u3092\u4f7f\u3046\u5834\u9762\u306b\u76f4\u9762\u3059\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u3069\u3061\u3089\u3092\u9078\u3076\u3079\u304d\u304b\u8ff7\u3046\u3053\u3068\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u305d\u308c\u305e\u308c\u306e\u7279\u5fb4\u3068\u5229\u70b9\u3092 […]<\/p>\n","protected":false},"author":87,"featured_media":5153,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","swell_btn_cv_data":"","footnotes":"","_wp_rev_ctl_limit":""},"categories":[1246],"tags":[108,148,673,674,39],"class_list":["post-5244","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-data-infrastructure","tag-bigquery","tag-sql","tag-673","tag-674","tag-39"],"_links":{"self":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/5244","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/users\/87"}],"replies":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/comments?post=5244"}],"version-history":[{"count":0,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/5244\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/media\/5153"}],"wp:attachment":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/media?parent=5244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/categories?post=5244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/tags?post=5244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}