{"id":3843,"date":"2026-11-14T17:00:55","date_gmt":"2026-11-14T08:00:55","guid":{"rendered":"https:\/\/qol-kk.com\/wp2\/?p=3843"},"modified":"2026-11-14T17:00:55","modified_gmt":"2026-11-14T08:00:55","slug":"20261024-00mvlhg8","status":"publish","type":"post","link":"https:\/\/qol-kk.com\/wp2\/blog\/2026\/11\/14\/20261024-00mvlhg8\/","title":{"rendered":"MySQL 8.0 \u306e\u30a6\u30a3\u30f3\u30c9\u30a6\u95a2\u6570\u6d3b\u7528\uff1a\u30e9\u30f3\u30ad\u30f3\u30b0\u30fb\u79fb\u52d5\u5e73\u5747\u30fb\u7d2f\u8a08\u3092 SQL \u3060\u3051\u3067"},"content":{"rendered":"<h2>\u6982\u8981<\/h2>\n<p>MySQL 8.0 \u3067\u8ffd\u52a0\u3055\u308c\u305f\u30a6\u30a3\u30f3\u30c9\u30a6\u95a2\u6570\uff08Window Functions\uff09\u3092\u4f7f\u3046\u3068\u3001\u3053\u308c\u307e\u3067\u30a2\u30d7\u30ea\u5074\u3084\u30b5\u30d6\u30af\u30a8\u30ea\u306e\u529b\u6280\u3067\u66f8\u3044\u3066\u3044\u305f\u300c\u30b0\u30eb\u30fc\u30d7\u5185\u306e\u30e9\u30f3\u30ad\u30f3\u30b0\u300d\u300c\u79fb\u52d5\u5e73\u5747\u300d\u300c\u7d2f\u8a08\u300d\u300c\u524d\u5f8c\u306e\u884c\u3068\u306e\u6bd4\u8f03\u300d\u304c\u30011 \u672c\u306e <code>SELECT<\/code> \u3067\u7d20\u76f4\u306b\u66f8\u3051\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30b5\u30f3\u30d7\u30eb\u30c7\u30fc\u30bf\u3092\u4f5c\u308a\u306a\u304c\u3089\u3001\u5b9f\u52d9\u3067\u983b\u51fa\u3059\u308b\u4ee5\u4e0b\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u30cf\u30f3\u30ba\u30aa\u30f3\u3067\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><code>ROW_NUMBER<\/code> \/ <code>RANK<\/code> \/ <code>DENSE_RANK<\/code> \u306b\u3088\u308b\u30b0\u30eb\u30fc\u30d7\u5185\u9806\u4f4d\u4ed8\u3051<\/li>\n<li><code>SUM() OVER (...)<\/code> \u306b\u3088\u308b\u7d2f\u8a08\uff08running total\uff09<\/li>\n<li><code>AVG() OVER (...)<\/code> \u306b\u3088\u308b\u30d5\u30ec\u30fc\u30e0\u6307\u5b9a\u306e\u79fb\u52d5\u5e73\u5747<\/li>\n<li><code>LAG<\/code> \/ <code>LEAD<\/code> \u306b\u3088\u308b\u524d\u5f8c\u884c\u3068\u306e\u5dee\u5206<\/li>\n<li><code>NTILE<\/code> \u306b\u3088\u308b N \u5206\u5272<\/li>\n<\/ul>\n<p>\u96c6\u8a08\u95a2\u6570\uff08<code>GROUP BY<\/code>\uff09\u304c\u300c\u884c\u3092\u7573\u307f\u8fbc\u3080\u300d\u306e\u306b\u5bfe\u3057\u3001\u30a6\u30a3\u30f3\u30c9\u30a6\u95a2\u6570\u306f\u300c\u884c\u3092\u6b8b\u3057\u305f\u307e\u307e\u3001\u95a2\u9023\u3059\u308b\u884c\u306e\u96c6\u8a08\u5024\u3092\u5404\u884c\u306b\u6dfb\u3048\u308b\u300d\u70b9\u304c\u672c\u8cea\u7684\u306a\u9055\u3044\u3067\u3059\u3002<\/p>\n<h2>\u74b0\u5883<\/h2>\n<ul>\n<li>MySQL 8.0 \u7cfb\uff088.0.2 \u4ee5\u964d\u3067\u30a6\u30a3\u30f3\u30c9\u30a6\u95a2\u6570\u304c\u5229\u7528\u53ef\u80fd\uff09<\/li>\n<li>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f <code>mysql<\/code> CLI \u3092\u60f3\u5b9a<\/li>\n<li>\u30b5\u30f3\u30d7\u30eb DB \u306f\u4f7f\u3044\u6368\u3066\u306e\u30ed\u30fc\u30ab\u30eb\u74b0\u5883\u3067\u4f5c\u6210<\/li>\n<\/ul>\n<p>\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u78ba\u8a8d\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">SELECT VERSION();<\/pre>\n<p><code>8.0.x<\/code> \u304c\u8fd4\u308c\u3070 OK\u30025.7 \u7cfb\u3067\u306f\u30a6\u30a3\u30f3\u30c9\u30a6\u95a2\u6570\u304c\u4f7f\u3048\u306a\u3044\u305f\u3081\u3001\u4ee5\u4e0b\u306f\u52d5\u304d\u307e\u305b\u3093\u3002<\/p>\n<h2>\u30b5\u30f3\u30d7\u30eb\u30c7\u30fc\u30bf\u306e\u6e96\u5099<\/h2>\n<p>\u5e97\u8217\u3054\u3068\u306e\u65e5\u6b21\u58f2\u4e0a\u3092\u6a21\u3057\u305f\u67b6\u7a7a\u30c7\u30fc\u30bf\u3092\u7528\u610f\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">CREATE TABLE sales (\n    id      INT AUTO_INCREMENT PRIMARY KEY,\n    store   VARCHAR(20) NOT NULL,\n    sold_on DATE        NOT NULL,\n    amount  INT         NOT NULL\n);\n\nINSERT INTO sales (store, sold_on, amount) VALUES\n    ('tokyo', '2026-01-01', 12000),\n    ('tokyo', '2026-01-02', 15000),\n    ('tokyo', '2026-01-03',  9000),\n    ('tokyo', '2026-01-04', 18000),\n    ('osaka', '2026-01-01',  8000),\n    ('osaka', '2026-01-02', 11000),\n    ('osaka', '2026-01-03', 13000),\n    ('osaka', '2026-01-04',  7000);<\/pre>\n<h2>\u57fa\u672c\u69cb\u6587<\/h2>\n<p>\u30a6\u30a3\u30f3\u30c9\u30a6\u95a2\u6570\u306f <code>\u95a2\u6570() OVER (\u30a6\u30a3\u30f3\u30c9\u30a6\u5b9a\u7fa9)<\/code> \u306e\u5f62\u3092\u53d6\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">\u95a2\u6570() OVER (\n    PARTITION BY \u5217   -- \u3069\u306e\u5358\u4f4d\u3067\u30b0\u30eb\u30fc\u30d7\u5206\u3051\u3059\u308b\u304b\uff08\u7701\u7565\u53ef\uff09\n    ORDER BY \u5217       -- \u30b0\u30eb\u30fc\u30d7\u5185\u306e\u4e26\u3073\u9806\uff08\u7701\u7565\u53ef\uff09\n    \u30d5\u30ec\u30fc\u30e0\u6307\u5b9a       -- \u96c6\u8a08\u5bfe\u8c61\u306e\u884c\u7bc4\u56f2\uff08\u7701\u7565\u53ef\uff09\n)<\/pre>\n<p><code>GROUP BY<\/code> \u3068\u9055\u3044\u3001<code>PARTITION BY<\/code> \u306f\u884c\u3092\u307e\u3068\u3081\u307e\u305b\u3093\u3002\u5404\u884c\u306f\u305d\u306e\u307e\u307e\u6b8b\u308a\u3001\u540c\u3058\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u306e\u884c\u3092\u898b\u6e21\u3057\u305f\u96c6\u8a08\u5024\u304c\u4ed8\u4e0e\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u30e9\u30f3\u30ad\u30f3\u30b0\uff1aROW_NUMBER \/ RANK \/ DENSE_RANK<\/h2>\n<pre class=\"lang:default decode:true\">SELECT\n    store, sold_on, amount,\n    ROW_NUMBER() OVER (PARTITION BY store ORDER BY amount DESC) AS row_num,\n    RANK()       OVER (PARTITION BY store ORDER BY amount DESC) AS rnk,\n    DENSE_RANK() OVER (PARTITION BY store ORDER BY amount DESC) AS dense_rnk\nFROM sales\nORDER BY store, amount DESC;<\/pre>\n<p>\u540c\u5024\uff08\u30bf\u30a4\uff09\u306e\u6271\u3044\u306b\u9055\u3044\u304c\u51fa\u307e\u3059\u3002<\/p>\n<ul>\n<li><code>ROW_NUMBER<\/code> \u2026 \u540c\u5024\u3067\u3082\u5fc5\u305a\u9023\u756a\uff081,2,3,4\uff09<\/li>\n<li><code>RANK<\/code> \u2026 \u540c\u5024\u306f\u540c\u9806\u4f4d\u3001\u6b21\u306f\u98db\u3076\uff081,1,3,4\uff09<\/li>\n<li><code>DENSE_RANK<\/code> \u2026 \u540c\u5024\u306f\u540c\u9806\u4f4d\u3001\u6b21\u306f\u98db\u3070\u306a\u3044\uff081,1,2,3\uff09<\/li>\n<\/ul>\n<h3>\u5404\u30b0\u30eb\u30fc\u30d7\u306e\u4e0a\u4f4d N \u4ef6<\/h3>\n<p>\u30a6\u30a3\u30f3\u30c9\u30a6\u95a2\u6570\u306f <code>WHERE<\/code> \u3067\u76f4\u63a5\u4f7f\u3048\u306a\u3044\u305f\u3081\u3001CTE \u3067\u5305\u307f\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">WITH ranked AS (\n    SELECT\n        store, sold_on, amount,\n        ROW_NUMBER() OVER (PARTITION BY store ORDER BY amount DESC) AS rn\n    FROM sales\n)\nSELECT store, sold_on, amount\nFROM ranked\nWHERE rn &lt;= 2\nORDER BY store, amount DESC;<\/pre>\n<p>\u300c\u5404\u5e97\u8217\u306e\u58f2\u4e0a\u30c8\u30c3\u30d7 2 \u65e5\u300d\u304c\u53d6\u308c\u307e\u3059\u3002\u5f93\u6765\u306f\u76f8\u95a2\u30b5\u30d6\u30af\u30a8\u30ea\u3067\u66f8\u3044\u3066\u3044\u305f\u51e6\u7406\u304c\u7d20\u76f4\u306b\u8aad\u3081\u308b\u5f62\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u7d2f\u8a08\uff08running total\uff09\uff1aSUM() OVER<\/h2>\n<pre class=\"lang:default decode:true\">SELECT\n    store, sold_on, amount,\n    SUM(amount) OVER (\n        PARTITION BY store\n        ORDER BY sold_on\n        ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW\n    ) AS running_total\nFROM sales\nORDER BY store, sold_on;<\/pre>\n<p><code>ORDER BY<\/code> \u3092\u4ed8\u3051\u305f\u96c6\u8a08\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30d5\u30ec\u30fc\u30e0\u306f\u300c\u5148\u982d\u304b\u3089\u73fe\u5728\u884c\u307e\u3067\u300d\u3067\u3059\u3002\u7d2f\u8a08\u3060\u3051\u306a\u3089 <code>ROWS BETWEEN ...<\/code> \u306f\u7701\u7565\u53ef\u80fd\u3067\u3059\u304c\u3001\u540c\u5024\u306e\u6271\u3044\u3067\u5dee\u304c\u51fa\u308b\u305f\u3081\u3001\u610f\u56f3\u3092\u660e\u78ba\u306b\u3057\u305f\u3044\u3068\u304d\u306f\u660e\u793a\u3057\u3066\u304a\u304f\u3068\u5b89\u5168\u3067\u3059\u3002<\/p>\n<h2>\u79fb\u52d5\u5e73\u5747\uff1a\u30d5\u30ec\u30fc\u30e0\u6307\u5b9a\u306e AVG() OVER<\/h2>\n<p>\u76f4\u8fd1 3 \u65e5\uff08\u5f53\u65e5\uff0b\u524d 2 \u65e5\uff09\u306e\u79fb\u52d5\u5e73\u5747\u3092\u51fa\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">SELECT\n    store, sold_on, amount,\n    AVG(amount) OVER (\n        PARTITION BY store\n        ORDER BY sold_on\n        ROWS BETWEEN 2 PRECEDING AND CURRENT ROW\n    ) AS moving_avg_3d\nFROM sales\nORDER BY store, sold_on;<\/pre>\n<p><code>ROWS BETWEEN 2 PRECEDING AND CURRENT ROW<\/code> \u304c\u300c\u73fe\u5728\u884c\u3092\u542b\u3080\u76f4\u8fd1 3 \u884c\u300d\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u5148\u982d\u90e8\u5206\u3067\u306f\u5b58\u5728\u3059\u308b\u884c\u3060\u3051\u3067\u5e73\u5747\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>ROWS \u3068 RANGE \u306e\u9055\u3044<\/h3>\n<ul>\n<li><code>ROWS<\/code> \u2026 \u7269\u7406\u7684\u306a\u884c\u6570\u3067\u6570\u3048\u308b<\/li>\n<li><code>RANGE<\/code> \u2026 <code>ORDER BY<\/code> \u306e\u5024\u306e\u7bc4\u56f2\u3067\u6570\u3048\u308b\uff08\u540c\u5024\u306f\u307e\u3068\u3081\u3066 1 \u30b0\u30eb\u30fc\u30d7\u6271\u3044\uff09<\/li>\n<\/ul>\n<p>\u540c\u5024\u304c\u3042\u308b\u30b1\u30fc\u30b9\u3067\u6319\u52d5\u304c\u5909\u308f\u308b\u305f\u3081\u3001\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u9078\u3073\u307e\u3059\u3002<\/p>\n<h2>\u524d\u5f8c\u884c\u3068\u306e\u6bd4\u8f03\uff1aLAG \/ LEAD<\/h2>\n<pre class=\"lang:default decode:true\">SELECT\n    store, sold_on, amount,\n    LAG(amount, 1) OVER (PARTITION BY store ORDER BY sold_on) AS prev_amount,\n    amount - LAG(amount, 1) OVER (PARTITION BY store ORDER BY sold_on) AS diff_from_prev\nFROM sales\nORDER BY store, sold_on;<\/pre>\n<p>\u5148\u982d\u884c\u306f\u524d\u65e5\u304c\u5b58\u5728\u3057\u306a\u3044\u305f\u3081 <code>NULL<\/code> \u306b\u306a\u308a\u307e\u3059\u3002\u65e2\u5b9a\u5024\u306f\u7b2c 3 \u5f15\u6570\u3067\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">LAG(amount, 1, 0) OVER (PARTITION BY store ORDER BY sold_on)  -- \u7121\u3051\u308c\u3070 0<\/pre>\n<h2>N \u5206\u5272\uff1aNTILE<\/h2>\n<pre class=\"lang:default decode:true\">SELECT\n    store, sold_on, amount,\n    NTILE(4) OVER (ORDER BY amount DESC) AS quartile\nFROM sales\nORDER BY quartile, amount DESC;<\/pre>\n<p><code>NTILE(4)<\/code> \u306f\u5bfe\u8c61\u884c\u3092\u3067\u304d\u308b\u3060\u3051\u5747\u7b49\u306b 4 \u30b0\u30eb\u30fc\u30d7\u3078\u5206\u3051\u30011\u301c4 \u306e\u756a\u53f7\u3092\u4ed8\u3051\u307e\u3059\u3002\u5272\u308a\u5207\u308c\u306a\u3044\u3076\u3093\u306f\u5148\u982d\u30b0\u30eb\u30fc\u30d7\u304b\u3089 1 \u884c\u305a\u3064\u591a\u304f\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002<\/p>\n<h2>\u78ba\u8a8d\u65b9\u6cd5<\/h2>\n<p>\u7d2f\u8a08\u306e\u6700\u7d42\u884c\u304c\u3001\u305d\u306e\u5e97\u8217\u306e\u5408\u8a08\u3068\u4e00\u81f4\u3059\u308b\u304b\u3067\u691c\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">SELECT store, SUM(amount) AS total FROM sales GROUP BY store;<\/pre>\n<h2>\u6ce8\u610f\u70b9<\/h2>\n<ul>\n<li>\u30a6\u30a3\u30f3\u30c9\u30a6\u95a2\u6570\u306f <code>WHERE<\/code> \/ <code>HAVING<\/code> \/ <code>GROUP BY<\/code> \u3067\u76f4\u63a5\u4f7f\u3048\u306a\u3044 \u2192 CTE \/ \u30b5\u30d6\u30af\u30a8\u30ea\u3067\u5305\u3080<\/li>\n<li><code>ORDER BY<\/code> \u304c\u975e\u4e00\u610f\u3060\u3068 <code>ROW_NUMBER<\/code> \u304c\u30d6\u30ec\u308b \u2192 PK \u306a\u3069\u4e00\u610f\u30ad\u30fc\u3092\u540c\u9806\u30ad\u30fc\u306b\u8db3\u3059<\/li>\n<li><code>ORDER BY<\/code> \u4ed8\u304d\u96c6\u8a08\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30d5\u30ec\u30fc\u30e0\u306f <code>RANGE<\/code>\u3002\u884c\u5358\u4f4d\u3067\u7a4d\u307f\u305f\u3044\u306a\u3089 <code>ROWS<\/code> \u3092\u660e\u793a<\/li>\n<li>\u5927\u91cf\u30c7\u30fc\u30bf\u3067\u306f <code>PARTITION BY<\/code> \/ <code>ORDER BY<\/code> \u5217\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u6709\u7121\u3067\u30bd\u30fc\u30c8\u30b3\u30b9\u30c8\u304c\u5909\u308f\u308b \u2192 <code>EXPLAIN<\/code> \u3067\u78ba\u8a8d<\/li>\n<\/ul>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>MySQL 8.0 \u306e\u30a6\u30a3\u30f3\u30c9\u30a6\u95a2\u6570\u306f\u3001\u300c\u884c\u3092\u6b8b\u3057\u305f\u307e\u307e\u96c6\u8a08\u5024\u3092\u6dfb\u3048\u308b\u300d\u3068\u3044\u3046\u6027\u8cea\u3092\u7406\u89e3\u3059\u308b\u3068\u4f7f\u3044\u3069\u3053\u308d\u304c\u4e00\u6c17\u306b\u898b\u3048\u3066\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u9806\u4f4d\u4ed8\u3051 \u2192 <code>ROW_NUMBER<\/code> \/ <code>RANK<\/code> \/ <code>DENSE_RANK<\/code><\/li>\n<li>\u7d2f\u8a08 \u2192 <code>SUM() OVER (ORDER BY ...)<\/code><\/li>\n<li>\u79fb\u52d5\u5e73\u5747 \u2192 <code>AVG() OVER (... ROWS BETWEEN ...)<\/code><\/li>\n<li>\u524d\u5f8c\u6bd4\u8f03 \u2192 <code>LAG<\/code> \/ <code>LEAD<\/code><\/li>\n<li>N \u5206\u5272 \u2192 <code>NTILE<\/code><\/li>\n<\/ul>\n<p>\u30a2\u30d7\u30ea\u5074\u306e\u30eb\u30fc\u30d7\u3084\u76f8\u95a2\u30b5\u30d6\u30af\u30a8\u30ea\u3067\u66f8\u3044\u3066\u3044\u305f\u51e6\u7406\u3092 SQL \u306b\u5bc4\u305b\u3089\u308c\u308b\u3068\u3001\u30b3\u30fc\u30c9\u91cf\u304c\u6e1b\u308a\u3001DB \u5074\u3067\u5b8c\u7d50\u3059\u308b\u3076\u3093\u8ee2\u9001\u91cf\u3082\u6e1b\u308a\u307e\u3059\u3002\u307e\u305a\u306f\u624b\u5143\u306e\u4f7f\u3044\u6368\u3066 DB \u3067\u30b5\u30f3\u30d7\u30eb\u3092\u52d5\u304b\u3057\u3001\u30d5\u30ec\u30fc\u30e0\u6307\u5b9a\u306e\u6319\u52d5\u3092\u4f53\u3067\u899a\u3048\u308b\u306e\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MySQL 8.0 \u3067\u8ffd\u52a0\u3055\u308c\u305f\u30a6\u30a3\u30f3\u30c9\u30a6\u95a2\u6570\uff08Window Functions\uff09\u3092\u4f7f\u3046\u3068\u3001\u3053\u308c\u307e\u3067\u30a2\u30d7\u30ea\u5074\u3084\u30b5\u30d6\u30af\u30a8\u30ea\u306e\u529b\u6280\u3067\u66f8\u3044\u3066\u3044\u305f\u300c\u30b0\u30eb\u30fc\u30d7\u5185\u306e\u30e9\u30f3\u30ad\u30f3\u30b0\u300d\u300c\u79fb\u52d5\u5e73\u5747\u300d\u300c\u7d2f\u8a08\u300d\u300c\u524d\u5f8c\u306e\u884c\u3068\u306e\u6bd4\u8f03\u300d\u304c\u30011 \u672c\u306e SELECT \u3067\u7d20\u76f4\u306b\u2026<\/p>\n","protected":false},"author":1,"featured_media":3842,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"sns_share_botton_hide":"","vkExUnit_sns_title":"","_vk_print_noindex":"","sitemap_hide":"","_veu_custom_css":"","veu_display_promotion_alert":"","vkexunit_cta_each_option":"","_lightning_design_setting":[],"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[35],"tags":[1197,99,424,455,916],"class_list":["post-3843","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mysql-memorandum","tag-db","tag-mysql","tag-424","tag-455","tag-916"],"veu_head_title_object":{"title":"","add_site_title":""},"jetpack_publicize_connections":[],"jetpack-related-posts":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/qol-kk.com\/wp2\/wp-content\/uploads\/2026\/11\/20261024-00mvlhg8-thumbnail.jpg","_links":{"self":[{"href":"https:\/\/qol-kk.com\/wp2\/wp-json\/wp\/v2\/posts\/3843","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/qol-kk.com\/wp2\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qol-kk.com\/wp2\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qol-kk.com\/wp2\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qol-kk.com\/wp2\/wp-json\/wp\/v2\/comments?post=3843"}],"version-history":[{"count":1,"href":"https:\/\/qol-kk.com\/wp2\/wp-json\/wp\/v2\/posts\/3843\/revisions"}],"predecessor-version":[{"id":3844,"href":"https:\/\/qol-kk.com\/wp2\/wp-json\/wp\/v2\/posts\/3843\/revisions\/3844"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/qol-kk.com\/wp2\/wp-json\/wp\/v2\/media\/3842"}],"wp:attachment":[{"href":"https:\/\/qol-kk.com\/wp2\/wp-json\/wp\/v2\/media?parent=3843"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qol-kk.com\/wp2\/wp-json\/wp\/v2\/categories?post=3843"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qol-kk.com\/wp2\/wp-json\/wp\/v2\/tags?post=3843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}