{"title":"SQL\u306e\u6587\u6cd5","categories":["SQL"],"blog_url":"https://blackstudy.hatenablog.com/","version":"1.0","image_url":null,"url":"https://blackstudy.hatenablog.com/entry/2024/07/31/214448","author_url":"https://blog.hatena.ne.jp/blackstudy/","published":"2024-07-31 21:44:48","description":"+\uff1a\u52a0\u7b97 (\u4f8b)\u30ab\u30e9\u30e0+0.8 -\uff1a\u6e1b\u7b97 (\u4f8b)\u30ab\u30e9\u30e0-0.8 *\uff1a\u4e57\u7b97 (\u4f8b)\u30ab\u30e9\u30e0*0.8 /\uff1a\u9664\u7b97 (\u4f8b)\u30ab\u30e9\u30e0/0.8 ||\uff1a\u6587\u5b57\u5217\u306e\u9023\u7d50\u6f14\u7b97\u5b50 (\u4f8b)'\u5546\u54c1\u540d='||\u30ab\u30e9\u30e0 AS\uff1a\u5225\u540d(\u30a8\u30a4\u30ea\u30a2\u30b9)\u3092\u6307\u5b9a (\u4f8b)\u30ab\u30e9\u30e0AS'\u65b0\u3057\u3044\u540d\u524d' DISTINCT\uff1a\u91cd\u8907\u3092\u53d6\u308a\u9664\u304f (\u4f8b)SELECT DISTINCT \u30ab\u30e9\u30e0 FROM \u30c6\u30fc\u30d6\u30eb COALESCE\uff1aNULL\u3067\u3042\u308c\u3070\u7b2c\uff12\u5f15\u6570\u306e\u5024\u3092\u8fd4\u3059 (\u4f8b)SELECT COALESCE(\u30ab\u30e9\u30e0, 0) FROM \u30c6\u30fc\u30d6\u30ebCASE\uff1a\u6761\u4ef6\u5206\u5c90\u3059\u308b (\u4f8b)SELECT \u51fa\u5e2d\u756a\u53f7, CASE WHEN point >= 70 THEN 1 ELSE 0\u2026","provider_url":"https://hatena.blog","type":"rich","width":"100%","height":"190","provider_name":"Hatena Blog","author_name":"blackstudy","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblackstudy.hatenablog.com%2Fentry%2F2024%2F07%2F31%2F214448\" title=\"SQL\u306e\u6587\u6cd5 - C\u8a00\u8a9e\u3001IT\u95a2\u9023\u3001Java\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"C\u8a00\u8a9e\u3001IT\u95a2\u9023\u3001Java"}