{"provider_url":"https://hatena.blog","title":"physical reads prefetch warmup ","height":"190","type":"rich","description":"\u4eca\u66f4\u306a\u30cd\u30bf\u3067\u3059\u304c\u30e1\u30e2\u3002 Oracle Database (10.1\u4ee5\u964d)\u3067\u30d0\u30c3\u30d5\u30a1\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u30b9\u30ab\u30b9\u30ab\u306e\u5834\u5408\u3001\u30a2\u30af\u30bb\u30b9\u30d1\u30b9\u304c INDEX UNIQUE/RANGE SCAN \u3067\u3082 db file scattered read \u3067\u30de\u30eb\u30c1\u30d6\u30ed\u30c3\u30af\u30ea\u30fc\u30c9\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u3002 \u3053\u308c\u306f\u30d6\u30ed\u30c3\u30af\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3064\u3044\u3067\u306b\u8fd1\u304f\u306e\u30d6\u30ed\u30c3\u30af\u3082\u305d\u306e\u3046\u3061\u30a2\u30af\u30bb\u30b9\u3055\u308c\u308b\u3068\u4e88\u6e2c\u3057\u3066\u30d0\u30c3\u30d5\u30a1\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4e57\u305b\u3066\u3001\u4ee5\u964d\u306e\u51e6\u7406\u3092\u9ad8\u901f\u5316\u3059\u308b\u610f\u56f3\u304c\u3042\u308b\u3068\u601d\u308f\u308c\u308b\u3002 \u307e\u3068\u3081 INDEX UNIQUE/RANGE SCAN \u306a\u3069\u3067 db file sequential read \u3067\u306a\u304f db file scattered read \u304c\u767a\u751f\u3057\u3066\u2026","url":"https://yohei-a.hatenablog.jp/entry/20151115/1447603551","provider_name":"Hatena Blog","image_url":null,"width":"100%","categories":["Oracle"],"published":"2015-11-15 01:05:51","author_name":"yohei-a","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyohei-a.hatenablog.jp%2Fentry%2F20151115%2F1447603551\" title=\"physical reads prefetch warmup  - ablog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://yohei-a.hatenablog.jp/","blog_title":"ablog","author_url":"https://blog.hatena.ne.jp/yohei-a/"}