{"id":921,"date":"2019-11-11T23:14:06","date_gmt":"2019-11-11T14:14:06","guid":{"rendered":"https:\/\/obenkyolab.com\/?p=921"},"modified":"2020-04-06T23:31:17","modified_gmt":"2020-04-06T14:31:17","slug":"postgresql-%e3%82%ab%e3%83%b3%e3%83%9e%e4%bb%98%e3%81%8d%e6%96%87%e5%ad%97%e5%88%97%e9%87%91%e9%a1%8d%e3%83%87%e3%83%bc%e3%82%bf%e3%82%92%e6%95%b0%e5%80%a4%e5%a4%89%e6%8f%9b","status":"publish","type":"post","link":"https:\/\/obenkyolab.com\/?p=921","title":{"rendered":"PostgreSQL  \u30ab\u30f3\u30de\u4ed8\u304d\u6587\u5b57\u5217\u91d1\u984d\u30c7\u30fc\u30bf\u3092\u6570\u5024\u5909\u63db"},"content":{"rendered":"\n<p>BI\u30c4\u30fc\u30eb\u306a\u3069\u3067\u91d1\u984d\u30c7\u30fc\u30bf\u3092\u6271\u3044\u305f\u3044\u5834\u5408\u306b\u3001\u91d1\u984d\u30c7\u30fc\u30bf\u304c\u30ab\u30f3\u30de\u533a\u5207\u308a\u306e\u6587\u5b57\u5217\u30c7\u30fc\u30bf\u306e\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f8b\uff1a306,327<\/p>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u6587\u5b57\u5217\u30c7\u30fc\u30bf\u3092\u6570\u5024\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SQL<\/h2>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30c7\u30fc\u30bf\u3092\u6301\u3064\u30c6\u30fc\u30d6\u30eb(balance_table)\u304c\u3042\u308b\u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nid | balance\n-------------\n1  | 10,432\n2  | 4,665,348\n... \n<\/pre><\/div>\n\n\n<p><\/p>\n\n\n\n<p>\u6b21\u306e\u3088\u3046\u306aSQL\u3067\u6570\u5024\u5316\u3057\u305f\u7d50\u679c\u3092\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: sql; title: ; notranslate\" title=\"\">\nselect \n    ,id\n    ,to_number(balance,&#039;999,999,999&#039;) as balance\nfrom\n    balance_table;\n\n\n--\u7d50\u679c\nid | balance\n-------------\n1  | 10432\n2  | 4665348\n...\n<\/pre><\/div>\n\n\n<p><\/p>\n\n\n\n<p>balance\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u4e2d\u306bNULL\u304c\u5165\u3063\u3066\u3044\u308b\u3068\u30a8\u30e9\u30fc\u304c\u51fa\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nid | balance\n-------------\n1  | 10,432\n2  | 4,665,348\n3  | NULL\n... \n<\/pre><\/div>\n\n\n<p> NULL\u304c\u5165\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u5834\u5408\u306f\u6b21\u306e\u3088\u3046\u306a\u69cb\u6587\u304c\u6709\u52b9\u3067\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: sql; title: ; notranslate\" title=\"\">\nselect \n    ,id\n    ,to_number(coalesce(balance,0),&#039;999,999,999&#039;) as balance\nfrom\n    balance_table;\n\n--\u7d50\u679c\nid | balance\n-------------\n1  | 10432\n2  | 4665348\n3  | 0\n...\n<\/pre><\/div>\n\n\n<p> coalesce\u3092\u4f7f\u3063\u30660\u3067\u7f6e\u63db\u3057\u305f\u3046\u3048\u3067\u3001to_number\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>BI\u30c4\u30fc\u30eb\u306a\u3069\u3067\u91d1\u984d\u30c7\u30fc\u30bf\u3092\u6271\u3044\u305f\u3044\u5834\u5408\u306b\u3001\u91d1\u984d\u30c7\u30fc\u30bf\u304c\u30ab\u30f3\u30de\u533a\u5207\u308a&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":1042,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_locale":"","_original_post":"","footnotes":""},"categories":[12],"tags":[],"class_list":["post-921","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-postgresql","ja"],"_links":{"self":[{"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/posts\/921","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=921"}],"version-history":[{"count":2,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/posts\/921\/revisions"}],"predecessor-version":[{"id":923,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/posts\/921\/revisions\/923"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=\/wp\/v2\/media\/1042"}],"wp:attachment":[{"href":"https:\/\/obenkyolab.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/obenkyolab.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}