{"id":4597,"date":"2021-11-04T10:23:46","date_gmt":"2021-11-04T01:23:46","guid":{"rendered":"http:\/\/haisins.epac.to\/wordpress\/?p=4597"},"modified":"2021-11-04T10:25:49","modified_gmt":"2021-11-04T01:25:49","slug":"adaptive-query-optimization","status":"publish","type":"post","link":"http:\/\/haisins.synology.me\/wordpress\/?p=4597","title":{"rendered":"Adaptive Query Optimization ( SQL \ud50c\ub79c \ubcc0\uacbd \uc7a5\uc560 \ubc29\uc9c0 )"},"content":{"rendered":"<p><strong><span style=\"font-size: x-large;\">Adaptive Query Optimization<\/span><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>SQL\uc758 \uc2e4\ud589 \uacc4\ud68d\uc744 Runtime\uc2dc\uc5d0 \ubcc0\uacbd\ud558\uac70\ub098 \ud5a5\ud6c4\uc5d0 \ub354 \ub098\uc740 \uc2e4\ud589\uacc4\ud68d\uc744 \uc0dd\uc131\ud558\uae30 \uc704\ud574 Optimizer\uc5d0\uac8c \ub3c4\uc6c0\uc744 \uc8fc\ub294 \uba54\ud0c0 \ub370\uc774\ud130\ub97c \uc218\uc9d1\ud558\ub294 \uae30\ub2a5\uc758 \uc9d1\ud569<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/i0.wp.com\/oracledba.zapto.org\/wordpress\/wp-content\/uploads\/2021\/11\/image-11.png\"><img loading=\"lazy\" style=\"display: inline; background-image: none;\" title=\"image\" src=\"https:\/\/i0.wp.com\/oracledba.zapto.org\/wordpress\/wp-content\/uploads\/2021\/11\/image_thumb-10.png?resize=640%2C279\" alt=\"image\" width=\"640\" height=\"279\" border=\"0\" data-recalc-dims=\"1\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>Adaptive Join Methods\ub294 SQL Runtime\uc2dc \ud1b5\uacc4\uc815\ubcf4\ub97c \ud1a0\ub300\ub85c \uc870\uc778 \ubc29\ubc95\uc744 \ub3d9\uc801\uc73c\ub85c \ubcc0\uacbd\ud569\ub2c8\ub2e4.<\/p>\n<p>&nbsp;<\/p>\n<p>\uc0c1\ud669\uc5d0 \ub530\ub77c NL \ud639\uc740 HASH \uc870\uc778\uc73c\ub85c SQL\uc774 \uc2e4\ud589\ub429\ub2c8\ub2e4 .<\/p>\n<p>&nbsp;<\/p>\n<p>Adaptive Parallel Distribution Methods\ub294 SQL Runtime\uc2dc \ud1b5\uacc4\uc815\ubcf4\ub97c \ud1a0\ub300\ub85c \ubcd1\ub82c \ucffc\ub9ac\uc758 \uc7ac\ubd84\ubc30 \ubc29\uc2dd\uc744 \ubcc0\uacbd\ud569\ub2c8\ub2e4.<\/p>\n<p>&nbsp;<\/p>\n<p>\uc0c1\ud669\uc5d0 \ub530\ub77c HASH \ud639\uc740 BROADCAST \ubc29\uc2dd\uc73c\ub85c \uc7ac\ubd84\ubc30 \ud569\ub2c8\ub2e4.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #ff0000; font-family: Arial; font-size: large;\">*. \ubd80\uc791\uc6a9\u00a0 \uc8fc\uc758 \uc0ac\ud56d<\/span><\/strong><\/p>\n<p><strong><span style=\"color: #ff0000; font-family: Arial; font-size: large;\">&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<\/span><\/strong><\/p>\n<p><span style=\"color: #ff0000;\">Adaptive Query Optimization\uc740 \uc548\uc815\ud654 \ub418\uc9c0 \ubabb\ud55c \uc0c1\ud0dc\uc774\uba70 \uc6b4\uc601\uacc4 \uc801\uc6a9 \uc2dc DBMS \uc804\uccb4 \uc131\ub2a5 \ubc0f \uc548\uc815\uc131\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \uc904 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p><span style=\"color: #ff0000;\">\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/oracledba.zapto.org\/wordpress\/wp-content\/uploads\/2021\/11\/image-12.png\"><img loading=\"lazy\" style=\"display: inline; background-image: none;\" title=\"image\" src=\"https:\/\/i0.wp.com\/oracledba.zapto.org\/wordpress\/wp-content\/uploads\/2021\/11\/image_thumb-11.png?resize=640%2C247\" alt=\"image\" width=\"640\" height=\"247\" border=\"0\" data-recalc-dims=\"1\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>\uc624\ub77c\ud074 \uc5c5\uadf8\ub808\uc774\ub4dc \ud6c4 \uc704\uc640 \uac19\uc774 \ud30c\ub77c\ubbf8\ud130\ub97c \uc124\uc815 \ud558\uc5ec<strong><span style=\"color: #ff0000;\"> SQL \ud50c\ub79c \ubcc0\uacbd\uc5d0 \ub530\ub978 \uc7a5\uc560<\/span><\/strong> \uc5d0 \ub300\ube44\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p><strong><span style=\"font-family: Arial; font-size: large;\">\u00a0<\/span><\/strong><\/p>\n<p><strong><span style=\"font-family: Arial; font-size: large;\">\u00a0<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Adaptive Query Optimization &nbsp; SQL\uc758 \uc2e4\ud589 \uacc4\ud68d\uc744 Runtime\uc2dc\uc5d0 \ubcc0\uacbd\ud558\uac70\ub098 \ud5a5\ud6c4\uc5d0 \ub354 \ub098\uc740 \uc2e4\ud589\uacc4\ud68d\uc744 \uc0dd\uc131\ud558\uae30 \uc704\ud574 Optimizer\uc5d0\uac8c \ub3c4\uc6c0\uc744 \uc8fc\ub294 \uba54\ud0c0 \ub370\uc774\ud130\ub97c \uc218\uc9d1\ud558\ub294 \uae30\ub2a5\uc758 \uc9d1\ud569 &nbsp; &nbsp; Adaptive Join Methods\ub294 SQL Runtime\uc2dc \ud1b5\uacc4\uc815\ubcf4\ub97c \ud1a0\ub300\ub85c \uc870\uc778 \ubc29\ubc95\uc744 \ub3d9\uc801\uc73c\ub85c \ubcc0\uacbd\ud569\ub2c8\ub2e4. &nbsp; \uc0c1\ud669\uc5d0 \ub530\ub77c NL \ud639\uc740 HASH \uc870\uc778\uc73c\ub85c SQL\uc774 \uc2e4\ud589\ub429\ub2c8\ub2e4 . &nbsp; Adaptive Parallel Distribution Methods\ub294 SQL Runtime\uc2dc \ud1b5\uacc4\uc815\ubcf4\ub97c \ud1a0\ub300\ub85c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4522,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"spay_email":""},"categories":[14],"tags":[1201,1203,1205,1202,1206,1204],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/haisins.synology.me\/wordpress\/wp-content\/uploads\/2021\/11\/troubleshoot.png?fit=680%2C345","amp_enabled":true,"_links":{"self":[{"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4597"}],"collection":[{"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4597"}],"version-history":[{"count":2,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4597\/revisions"}],"predecessor-version":[{"id":4599,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4597\/revisions\/4599"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/media\/4522"}],"wp:attachment":[{"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4597"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}