{"id":441,"date":"2017-02-14T18:37:23","date_gmt":"2017-02-14T09:37:23","guid":{"rendered":"http:\/\/elink.tokyo\/?p=441"},"modified":"2017-09-16T23:58:29","modified_gmt":"2017-09-16T14:58:29","slug":"sql-selectupdate","status":"publish","type":"post","link":"https:\/\/greentown.tokyo\/?p=441","title":{"rendered":"\u3010SQL\u3011\u30c6\u30fc\u30d6\u30eb\u306e\u30b0\u30eb\u30fc\u30d7\u5225\u884c\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3057\u3066\u5225\u30c6\u30fc\u30d6\u30eb\u306b\u5165\u308c\u308b"},"content":{"rendered":"<p>SQL\u3082\u306a\u3093\u3068\u306a\u30fc\u304f\u4f7f\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u3044\u3064\u307e\u3067\u305f\u3063\u3066\u3082\u30fb\u30fb\u30fb<\/p>\n<p>\u30bf\u30a4\u30c8\u30eb\u3069\u304a\u308a\u306a\u306e\u3067\u3059\u304c\u3001\u3061\u3087\u3063\u3068\u8abf\u3079\u3093\u3068\u308f\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n<h2>\u30c6\u30fc\u30d6\u30eb\u306e\u30b0\u30eb\u30fc\u30d7\u5225\u884c\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3057\u3066\u5225\u30c6\u30fc\u30d6\u30eb\u306b\u5165\u308c\u308b<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-medium wp-image-449\" src=\"http:\/\/elink.tokyo\/wp-content\/uploads\/2017\/02\/households-300x280.png\" alt=\"\" width=\"300\" height=\"280\" \/><\/p>\n<p>\u3053\u3093\u306a\u3001\u81ea\u6cbb\u4f53\u3054\u3068\u306b\u4e16\u5e2f\u540d\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30c6\u30fc\u30d6\u30eb\u304c\u3042\u308b\u3068\u3057\u307e\u3059\u3002<\/p>\n<p>\u4e16\u5e2f\u540d\u306f\u9069\u5f53\u3067\u3059\u3002<\/p>\n<p>\u81ea\u6cbb\u4f53\u3054\u3068\u306b\u4f55\u4e16\u5e2f\u3042\u308b\u304b\u30ab\u30a6\u30f3\u30c8\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u53ce\u3081\u305f\u3044\u306e\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-448\" src=\"http:\/\/elink.tokyo\/wp-content\/uploads\/2017\/02\/town.png\" alt=\"\" width=\"292\" height=\"99\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u3067\u3001\u4ee5\u4e0b\u306eSQL\u3092\u5b9f\u884c\u30fb\u30fb\u30fb<\/p>\n<pre class=\"theme:dark-terminal lang:pgsql decode:true\" title=\"SQL\">update town.town as t\r\n  set households_count = (\r\n  select count(h.town_id) from town.households h\r\n  where h.town_id = t.town_id\r\n  group by h.town_id\r\n )\r\nwhere exists (\r\n  select 1 from town.households h\r\n  WHERE h.town_id = t.town_id\r\n);<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-451\" src=\"http:\/\/elink.tokyo\/wp-content\/uploads\/2017\/02\/town_res.png\" alt=\"\" width=\"292\" height=\"102\" \/><\/p>\n<p>\u7c21\u5358\u3060\u3051\u3069\u3001\u3059\u3050\u5fd8\u308c\u3066\u3057\u307e\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SQL\u3082\u306a\u3093\u3068\u306a\u30fc\u304f\u4f7f\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u3044\u3064\u307e\u3067\u305f\u3063\u3066\u3082\u30fb\u30fb\u30fb \u30bf\u30a4\u30c8\u30eb\u3069\u304a\u308a\u306a\u306e\u3067\u3059\u304c\u3001\u3061\u3087\u3063\u3068\u8abf\u3079\u3093\u3068\u308f\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002 \u30c6\u30fc\u30d6\u30eb\u306e\u30b0\u30eb\u30fc\u30d7\u5225\u884c\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3057\u3066\u5225\u30c6\u30fc\u30d6\u30eb\u306b\u5165\u308c\u308b \u3053\u3093\u306a\u3001\u81ea\u6cbb\u4f53\u3054\u3068 &#8230; <\/p>\n","protected":false},"author":1,"featured_media":1769,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[71],"tags":[],"class_list":["post-441","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-note"],"_links":{"self":[{"href":"https:\/\/greentown.tokyo\/index.php?rest_route=\/wp\/v2\/posts\/441"}],"collection":[{"href":"https:\/\/greentown.tokyo\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/greentown.tokyo\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/greentown.tokyo\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/greentown.tokyo\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=441"}],"version-history":[{"count":1,"href":"https:\/\/greentown.tokyo\/index.php?rest_route=\/wp\/v2\/posts\/441\/revisions"}],"predecessor-version":[{"id":1857,"href":"https:\/\/greentown.tokyo\/index.php?rest_route=\/wp\/v2\/posts\/441\/revisions\/1857"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/greentown.tokyo\/index.php?rest_route=\/wp\/v2\/media\/1769"}],"wp:attachment":[{"href":"https:\/\/greentown.tokyo\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=441"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/greentown.tokyo\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=441"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/greentown.tokyo\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=441"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}