{"image_url":null,"height":"190","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fgonsuke777.hatenablog.com%2Fentry%2F2021%2F01%2F23%2F171740\" title=\"DBMS_STATS\u30d1\u30c3\u30b1\u30fc\u30b8 \u306e estimate_percent\u30d1\u30e9\u30e1\u30fc\u30bf \u3092 AUTO_SAMPLE_SIZE \u3068 100(100%) \u306b\u8a2d\u5b9a\u3057\u305f\u969b\u306e PGA\u4f7f\u7528\u91cf \u3092\u6bd4\u8f03\u3057\u3066\u307f\u308b\u3002(Oracle Database) - \u306d\u3089\uff5eIT\u30a8\u30f3\u30b8\u30cb\u30a2\u96d1\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","url":"https://gonsuke777.hatenablog.com/entry/2021/01/23/171740","blog_title":"\u306d\u3089\uff5eIT\u30a8\u30f3\u30b8\u30cb\u30a2\u96d1\u8a18","width":"100%","title":"DBMS_STATS\u30d1\u30c3\u30b1\u30fc\u30b8 \u306e estimate_percent\u30d1\u30e9\u30e1\u30fc\u30bf \u3092 AUTO_SAMPLE_SIZE \u3068 100(100%) \u306b\u8a2d\u5b9a\u3057\u305f\u969b\u306e PGA\u4f7f\u7528\u91cf \u3092\u6bd4\u8f03\u3057\u3066\u307f\u308b\u3002(Oracle Database)","categories":[],"provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/gonsuke777/","blog_url":"https://gonsuke777.hatenablog.com/","author_name":"gonsuke777","published":"2021-01-23 17:17:40","description":"1. \u691c\u8a3c\u3092\u884c\u3063\u305f\u74b0\u5883 2. \u30b5\u30f3\u30d7\u30eb\u30c7\u30fc\u30bf\u306e\u4f5c\u6210(SSB.CUSTOMER\u8868\u306e\u8907\u88fd) 3. estimate_percent\u30d1\u30e9\u30e1\u30fc\u30bf \u306b AUTO_SAMPLE_SIZE \u3092 \u30bb\u30c3\u30c8\u3057\u305f\u969b\u306e PGA\u4f7f\u7528\u91cf 4. estimate_percent\u30d1\u30e9\u30e1\u30fc\u30bf \u306b 100(100%) \u3092 \u30bb\u30c3\u30c8\u3057\u305f\u969b\u306e PGA\u4f7f\u7528\u91cf 5. \u307e\u3068\u3081 \u8868\u984c\u306e\u901a\u308a\u3001DBMS_STATS\u30d1\u30c3\u30b1\u30fc\u30b8 \u306e estimate_percent\u30d1\u30e9\u30e1\u30fc\u30bf \u3092\u5909\u66f4\u3057\u305f\u6642\u306e PGA\u4f7f\u7528\u91cf \u3092\u6bd4\u8f03\u3057\u3066\u307f\u305f\u3084\u3067\u3002 \u5f61(\uff9f)(\uff9f) 1. \u691c\u8a3c\u3092\u884c\u3063\u305f\u74b0\u5883 \u4eca\u56de\u306f Autonomous Database \u306e ATP-S \u306e\u74b0\u5883\u3092\u4f7f\u7528\u3057\u307e\u3057\u305f\u2026","type":"rich"}