{"id":2170,"date":"2018-05-03T17:36:01","date_gmt":"2018-05-03T08:36:01","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=2170"},"modified":"2023-05-27T21:46:17","modified_gmt":"2023-05-27T12:46:17","slug":"%e3%80%90oracle%e3%80%91sql%e5%ae%9f%e8%a1%8c%e6%99%82%e3%81%ae%e5%8b%95%e4%bd%9c%e3%81%ae%e4%bb%95%e7%b5%84%e3%81%bf","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=2170","title":{"rendered":"\u3010Oracle\u3011\u5b9f\u884c\u8a08\u753b\u4f5c\u6210\u5f8c\u306eSQL\u5b9f\u884c\u6642\u306e\u52d5\u4f5c\u306e\u4ed5\u7d44\u307f\uff08\u30a2\u30af\u30bb\u30b9\u30d1\u30b9\uff09"},"content":{"rendered":"<p>SQL\u5b9f\u884c\u6642\u306f\u3001\u4e00\u65e6\u3001\u30aa\u30d7\u30c6\u30a3\u30de\u30a4\u30b6\u304c\u5b9f\u884c\u8a08\u753b\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u5f8c\u3001\u30c6\u30fc\u30d6\u30eb\u3078\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3001\u30c7\u30fc\u30bf\u51e6\u7406\u3092\u884c\u3044\u307e\u3059\u304c\u3001\u305d\u306e\u969b\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3082\u8272\u3005\u3042\u308a\u307e\u3059\u306e\u3067\u3054\u7d39\u4ecb\u3055\u305b\u3066\u9802\u304d\u307e\u3059\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b\u3001\u3053\u308c\u3092\u5c02\u9580\u7528\u8a9e\u3067<span style=\"color: #ff0000;\"><strong>\u300c\u30a2\u30af\u30bb\u30b9\u30d1\u30b9\u300d<\/strong><\/span>\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30d5\u30eb\u30c6\u30fc\u30d6\u30eb\u30b9\u30ad\u30e3\u30f3\uff08\u8868\u63a2\u7d22\uff09<\/li>\n<li>ROWID\u30a2\u30af\u30bb\u30b9<\/li>\n<li>\u7d22\u5f15\u30b9\u30ad\u30e3\u30f3\uff08\u7d22\u5f15\u63a2\u7d22\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30b9\u30ad\u30e3\u30f3\uff09<\/li>\n<li>\u5168\u7d22\u5f15\u30b9\u30ad\u30e3\u30f3<\/li>\n<\/ul>\n<h2>\u30d5\u30eb\u30c6\u30fc\u30d6\u30eb\u30b9\u30ad\u30e3\u30f3\uff08\u8868\u63a2\u7d22\uff09<\/h2>\n<p>\u76ee\u7684\u306e\u30c7\u30fc\u30bf\u304c\u898b\u3064\u304b\u3063\u305f\u3068\u3057\u3066\u3082\u3001<span style=\"color: #ff0000;\"><strong>\u5168\u3066\u306e\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9<\/strong><\/span>\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001<span style=\"color: #ff0000;\"><strong>\u30c7\u30fc\u30bf\u4ef6\u6570\u304c\u591a\u3044\u307b\u3069\u3001\u5b9f\u884c\u6642\u9593\u304c\u304b\u304b\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u30c6\u30fc\u30d6\u30eb\u306e\u5927\u90e8\u5206\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u51e6\u7406\u4ee5\u5916\u3067\u306f\u907f\u3051\u308b\u3079\u304d<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u4f4e\u3044HWM\uff08\u30cf\u30a4\u30a6\u30a9\u30fc\u30bf\u30fc\u30de\u30fc\u30af\uff09\u306e\u4e0b\u306e\u30d6\u30ed\u30c3\u30af\u306f\u96a3\u63a5\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u4e00\u5ea6\u306b\u8907\u6570\u306e\u30d6\u30ed\u30c3\u30af\u3092\u8aad\u307f\u53d6\u308b\u3053\u3068\u3067\u30b9\u30ad\u30e3\u30f3\u3092\u9ad8\u901f\u5316\u3067\u304d\u308b\u3002\uff08\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306b\u306fDB_FILE_MULTIBLOCK_READ_COUNT\u306a\u3069\u306e\u521d\u671f\u5316\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u7528\u3044\u308b\u3002\uff09<\/p>\n<h2>ROWID\u30a2\u30af\u30bb\u30b9<\/h2>\n<p>\u30c6\u30fc\u30d6\u30eb\u306e\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u624b\u6cd5\u3068\u3057\u3066\u3001<span style=\"color: #ff0000;\"><strong>\u6700\u3082\u9ad8\u901f<\/strong><\/span>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>ROWID\u3092\u7528\u3044\u3066\u3001<span style=\"color: #ff0000;\"><strong>\u76ee\u7684\u306e\u30c7\u30fc\u30bf\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u884c\u306b\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u3092\u884c\u3044\u307e\u3059\u3002<\/strong><\/span><\/p>\n<p>\u305f\u3060\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u79fb\u52d5\u3084\u3001DB\u306e\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3001\u30a4\u30f3\u30dd\u30fc\u30c8\u3092\u3059\u308b\u3068ROWID\u304c\u5909\u308f\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u306e\u3067\u3001\u5e38\u306b\u3053\u308c\u3092\u5229\u7528\u3059\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u30a2\u30d7\u30ea\u3067\u53d6\u5f97\u3057\u305f\u884c\u306b\u3001\u518d\u5ea6\u30a2\u30af\u30bb\u30b9\u3059\u308b\u5834\u5408\u306e\u7528\u9014\u306e\u307f\u306b\u9650\u5b9a\u3057\u3066\u4f7f\u3044\u307e\u3059\u3002<\/strong><\/span><\/p>\n<h2>\u7d22\u5f15\u30b9\u30ad\u30e3\u30f3\uff08\u7d22\u5f15\u63a2\u7d22\u3001\u30a4\u30f3\u30c7\u30af\u30b9\u30b9\u30ad\u30e3\u30f3\uff09<\/h2>\n<p>\u7d22\u5f15\u3092\u4f7f\u7528\u3057\u3066\u3001ROWID\u3092\u53d6\u5f97\u5f8c\u3001\u30c7\u30fc\u30bf\u3092\u691c\u7d22\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u91cf\u304c\u5c11\u306a\u3044\u5834\u5408\u306f\u300c\u30d5\u30eb\u30c6\u30fc\u30d6\u30eb\u30b9\u30ad\u30e3\u30f3\u300d\u3088\u308a\u3082\u9ad8\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u51fa\u3057\u3066\u304f\u308c\u307e\u3059\u304c\u3001<span style=\"color: #ff0000;\"><strong>\u30ec\u30b3\u30fc\u30c9\u306e15%\u3092\u8d85\u3048\u308b\u91cf\u306e\u691c\u7d22\u306e\u5834\u5408\u306f\u3001\u30d5\u30eb\u30c6\u30fc\u30d6\u30eb\u30b9\u30ad\u30e3\u30f3\u3088\u308a\u3082\u691c\u7d22\u901f\u5ea6\u304c\u4f4e\u4e0b<\/strong><\/span>\u3057\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u30a4\u30f3\u30c7\u30af\u30b9\u30b9\u30ad\u30e3\u30f3\u306f\u300c\u5b8c\u5168\u4e00\u81f4\u691c\u7d22\u300d\u3060\u3051\u3067\u306a\u304f<span style=\"color: #ff0000;\"><strong>\u300c\u524d\u65b9\u4e00\u81f4\u691c\u7d22\u300d<\/strong><\/span>\u3067\u3082\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30b9\u30ad\u30e3\u30f3\u306b\u3059\u308b\u306b\u306f\u5bfe\u8c61\u30ab\u30e9\u30e0\u306b\u3064\u3044\u3066\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u4f5c\u6210\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u4e0b\u8a18\u306e\u8a18\u4e8b\u3067\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"UEf6UgJtWC\"><p><a href=\"http:\/\/www.code-magagine.com\/?p=1357\">\u3010\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u3011\u30a4\u30f3\u30c7\u30c3\u30af\u30b9(\u7d22\u5f15)\u306e\u57fa\u672c<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" src=\"http:\/\/www.code-magagine.com\/?p=1357&#038;embed=true#?secret=UEf6UgJtWC\" data-secret=\"UEf6UgJtWC\" width=\"500\" height=\"282\" title=\"&#8220;\u3010\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u3011\u30a4\u30f3\u30c7\u30c3\u30af\u30b9(\u7d22\u5f15)\u306e\u57fa\u672c&#8221; &#8212; \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30de\u30ac\u30b8\u30f3\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<h2>\u5168\u7d22\u5f15\u30b9\u30ad\u30e3\u30f3<\/h2>\n<p>\u7d22\u5f15\u306e\u5024\u3092\u53d6\u5f97\u3059\u308b\u3060\u3051\u3067\u3001<span style=\"color: #ff0000;\"><strong>ROWID\u3092\u53d6\u5f97\u305b\u305a\u306b\u3001\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3067\u304d\u308b\u306e\u3067\u3001\u7d22\u5f15\u30b9\u30ad\u30e3\u30f3\u3088\u308a\u3082\u9ad8\u901f<\/strong><\/span>\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u5168\u7d22\u5f15\u30b9\u30ad\u30e3\u30f3\u3092\u884c\u3046\u305f\u3081\u306b\u306f\u3001\u4e0b\u8a18\u306e\u524d\u63d0\u6761\u4ef6\u306b\u306a\u3063\u3066\u3044\u305f\u5834\u5408\u306e\u307f\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li>SELECT\u6587\u3068\u3001WHERE\u53e5\u306b\u8a18\u8ff0\u3059\u308b\u5168\u3066\u306e\u5217\u304c\u3001\u7d22\u5f15\u306b\u306a\u3063\u3066\u3044\u308b\u3002<\/li>\n<li>\u7d22\u5f15\u5185\u90e8\u306e\u884c\u306e10%\u304c\u554f\u3044\u5408\u308f\u305b\u304b\u3089\u623b\u3055\u308c\u308b\u3053\u3068\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"SQL\u5b9f\u884c\u6642\u306f\u3001\u4e00\u65e6\u3001\u30aa\u30d7\u30c6\u30a3\u30de\u30a4\u30b6\u304c\u5b9f\u884c\u8a08\u753b\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002 \u305d\u306e\u5f8c\u3001\u30c6\u30fc\u30d6\u30eb\u3078\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3001\u30c7\u30fc\u30bf\u51e6\u7406\u3092\u884c\u3044\u307e\u3059\u304c\u3001\u305d\u306e\u969b\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3082\u8272\u3005\u3042\u308a\u307e\u3059\u306e\u3067\u3054\u7d39\u4ecb\u3055\u305b\u3066\u9802\u304d\u307e\u3059\u3002 \u3061\u306a\u307f\u306b\u3001\u3053\u308c\u3092\u5c02\u9580\u7528\u8a9e\u3067\u300c\u30a2\u30af\u30bb\u30b9\u30d1\u30b9 [&hellip;]","protected":false},"author":1,"featured_media":2210,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[20,24],"tags":[],"_links":{"self":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/2170"}],"collection":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2170"}],"version-history":[{"count":17,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/2170\/revisions"}],"predecessor-version":[{"id":20401,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/2170\/revisions\/20401"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/media\/2210"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2170"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}