{"id":677,"date":"2018-05-25T18:26:30","date_gmt":"2018-05-25T09:26:30","guid":{"rendered":"https:\/\/www.oqiita.com\/?p=677"},"modified":"2018-06-02T20:22:44","modified_gmt":"2018-06-02T11:22:44","slug":"post-677","status":"publish","type":"post","link":"https:\/\/www.oqiita.com\/?p=677","title":{"rendered":"\u3010DB\u3011ORACLE \u4eee\u60f3\u5217\uff08VirtualColumn\uff09"},"content":{"rendered":"<p>\u3044\u307e\u3055\u3089\u3060\u304cORACLE\u306e\u4eee\u60f3\u5217\u3092\u4f7f\u3063\u3066\u307f\u305f\u3002<\/p>\n<p><!--more--><\/p>\n<p><\/p>\n<h3 id=\"i-0\">\u30ea\u30f3\u30af<\/h3>\n<p>  <a class=\"reference table\" href=\"http:\/\/www.oracle.com\/technetwork\/jp\/articles\/11g-schemamanagement-084211-ja.html\" target=\"_blank\" rel=\"noopener noreferrer\"><br \/>\n    <span class=\"tbcell refttl\">\u53c2\u8003<\/span><br \/>\n    <span class=\"tbcell refcite\">Oracle Database 11g \uff1a DBA\u3068\u958b\u767a\u8005\u306e\u305f\u3081\u306e\u4e3b\u8981\u306a\u65b0\u6a5f\u80fd<span><\/span><\/span><br \/>\n  <\/a><\/p>\n<h3 id=\"i-1\">\u5b9f\u8df5<\/h3>\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30c6\u30fc\u30d6\u30eb\u304c\u3042\u308b\u3002<br \/>\n<a href=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC001.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC001.png\" alt=\"\" width=\"436\" height=\"291\" class=\"alignnone size-full wp-image-679\" srcset=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC001.png 436w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC001-300x200.png 300w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC001-320x214.png 320w\" sizes=\"auto, (max-width: 436px) 100vw, 436px\"><\/a><\/p>\n<pre class=\"line-numbers\"><code class=\"language-sql\">-- \u4eee\u60f3\u5217\u306e\u8ffd\u52a0\nALTER TABLE TRANSACTION1 ADD ( NAME2 AS (NAME || '-' || KBN) ) ;\n<\/code><\/pre>\n<p>\u4eee\u60f3\u5217\u3092\u8ffd\u52a0\u3059\u308b\u3002<br \/>\n\u3059\u308b\u3068\u30c6\u30fc\u30d6\u30eb\u304c\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308b\u3002<br \/>\n<a href=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC002.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC002.png\" alt=\"\" width=\"556\" height=\"266\" class=\"alignnone size-full wp-image-680\" srcset=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC002.png 556w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC002-300x144.png 300w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC002-320x153.png 320w\" sizes=\"auto, (max-width: 556px) 100vw, 556px\"><\/a><\/p>\n<p>\u4eee\u60f3\u5217\u306b\u306f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3082\u3064\u3051\u308c\u308b\u3089\u3057\u3044\u3002<\/p>\n<p>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u3064\u3051\u308b\u524d\u306b\u6700\u8fd1\u899a\u3048\u305f\u5b9f\u884c\u8a08\u753b\u3092\u898b\u3066\u307f\u308b\u3002<\/p>\n<pre class=\"line-numbers\"><code class=\"language-sql\">-- \u30ab\u30a6\u30f3\u30c8\u3092\u53d6\u5f97\nSELECT COUNT(*) FROM TRANSACTION1 WHERE NAME2 = 'AAA-KBN001';\n<\/code><\/pre>\n<p><a href=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC003.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC003.png\" alt=\"\" width=\"944\" height=\"264\" class=\"alignnone size-full wp-image-681\" srcset=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC003.png 944w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC003-300x84.png 300w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC003-768x215.png 768w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC003-320x89.png 320w\" sizes=\"auto, (max-width: 944px) 100vw, 944px\"><\/a><\/p>\n<p>\u30c6\u30fc\u30d6\u30eb\u30a2\u30af\u30bb\u30b9\u304cFULL\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3002<br \/>\n\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u3064\u3051\u3066\u307f\u308b\u3002<\/p>\n<pre class=\"line-numbers\"><code class=\"language-sql\">-- \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f5c\u6210\nCREATE INDEX TRANSACTION1_NAME2_INDEX ON TRANSACTION1(NAME2);\n<\/code><\/pre>\n<p>\u518d\u5ea6\u5b9f\u884c\u8a08\u753b\u3092\u898b\u3066\u307f\u308b\u3068\u30fb\u30fb\u30fb\u30fb<br \/>\n<a href=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC004.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC004.png\" alt=\"\" width=\"960\" height=\"262\" class=\"alignnone size-full wp-image-682\" srcset=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC004.png 960w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC004-300x82.png 300w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC004-768x210.png 768w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC004-320x87.png 320w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\"><\/a><\/p>\n<p>RANGE SCAN\u306b\u306a\u308a\u307e\u3057\u305f\uff3c(^o^)\uff0f<br \/>\n&nbsp;<\/p>\n<h3 id=\"i-2\">\u4eca\u56de\u4f7f\u3063\u305fSQL<\/h3>\n<pre class=\"line-numbers\"><code class=\"language-sql\">-- \u4eee\u60f3\u5217\u306e\u8ffd\u52a0\nALTER TABLE TRANSACTION1 ADD ( NAME2 AS (NAME || '-' || KBN) ) ;\n\n-- \u4eee\u60f3\u5217\u306e\u524a\u9664\nALTER TABLE TRANSACTION1 DROP COLUMN NAME2 ;\n\n-- \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f5c\u6210\nCREATE INDEX TRANSACTION1_NAME2_INDEX ON TRANSACTION1(NAME2);\n\n-- \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u524a\u9664\nDROP INDEX TRANSACTION1_NAME2_INDEX;\n\n-- \u30ab\u30a6\u30f3\u30c8\u3092\u53d6\u5f97\nSELECT COUNT(*) FROM TRANSACTION1 WHERE NAME2 = 'AAA-KBN001';\n<\/code><\/pre>\n<p>&nbsp;<\/p>\n<h3 id=\"i-3\">\u304a\u307e\u3051<\/h3>\n<p>GeneXus\u304b\u3089\u4eee\u60f3\u5217\u3092\u53c2\u7167\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<br \/>\n\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306b\u9805\u76ee\u8ffd\u52a0\u3057\u3066\u518d\u7de8\u6210\u3092\u8d70\u3089\u305b\u306a\u3044\u3088\u3046\u306b\u3059\u308c\u3070\u554f\u984c\u306a\u304f\u53c2\u7167\u3067\u304d\u307e\u3059\u3002<br \/>\n<a href=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC005.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC005.png\" alt=\"\" width=\"723\" height=\"224\" class=\"alignnone size-full wp-image-683\" srcset=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC005.png 723w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC005-300x93.png 300w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC005-320x99.png 320w\" sizes=\"auto, (max-width: 723px) 100vw, 723px\"><\/a><\/p>\n<p>\u305f\u3060\u3057\u66f4\u65b0\u3057\u3088\u3046\u3068\u3059\u308b\u3068DB\u30a8\u30e9\u30fc\u306b\u306a\u308b\u306e\u3067\u6ce8\u610f\u3067\u3059\uff57<br \/>\n<a href=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC006.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC006.png\" alt=\"\" width=\"607\" height=\"464\" class=\"alignnone size-full wp-image-684\" srcset=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC006.png 607w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC006-300x229.png 300w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC006-320x245.png 320w\" sizes=\"auto, (max-width: 607px) 100vw, 607px\"><\/a><br \/>\n<a href=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC007.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC007.png\" alt=\"\" width=\"802\" height=\"90\" class=\"alignnone size-full wp-image-685\" srcset=\"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC007.png 802w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC007-300x34.png 300w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC007-768x86.png 768w, https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/ORACLE_VC007-320x36.png 320w\" sizes=\"auto, (max-width: 802px) 100vw, 802px\"><\/a><br \/>\n&nbsp;<br \/>\n&nbsp;<\/p>\n<h3 id=\"i-4\">\u307e\u3068\u3081<\/h3>\n<p>GeneXus\u306e\u5f0f\u9805\u76ee\uff08Formula\uff09\u3067\u5b9f\u88c5\u3057\u305f\u3044\u3051\u3069\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u9045\u3044<br \/>\n\u3051\u3069View\u306b\u3059\u308b\u3068\u3082\u3063\u3068\u9045\u3044\u3068\u304d\u306b\u4fbf\u5229\u3060\u3068\u601d\u3044\u307e\u3059\u3002<br \/>\n\u305f\u3060\u3057\u30ed\u30b8\u30c3\u30af\u304c\u30c6\u30fc\u30d6\u30eb\u306b\u3042\u3063\u305f\u308aPG\u306b\u3042\u3063\u305f\u308a\u3067\u7ba1\u7406\u304c\u3081\u3093\u3069\u3046\u306b\u306a\u308a\u305d\u3046\u30fb\u30fb\u30fb\u30fb<\/p>\n<p>\u4ee5\u4e0a\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3044\u307e\u3055\u3089\u3060\u304cORACLE\u306e\u4eee\u60f3\u5217\u3092\u4f7f\u3063\u3066\u307f\u305f\u3002<\/p>\n","protected":false},"author":1,"featured_media":733,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[90],"tags":[91,92,113,114],"class_list":{"0":"post-677","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-db","8":"tag-db","9":"tag-oracle","10":"tag-virtualcolumn","11":"tag-114","12":"entry"},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/www.oqiita.com\/wp-content\/uploads\/2018\/05\/sango_db_icatch.png","jetpack_shortlink":"https:\/\/wp.me\/p8QluP-aV","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.oqiita.com\/index.php?rest_route=\/wp\/v2\/posts\/677","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oqiita.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oqiita.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oqiita.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oqiita.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=677"}],"version-history":[{"count":4,"href":"https:\/\/www.oqiita.com\/index.php?rest_route=\/wp\/v2\/posts\/677\/revisions"}],"predecessor-version":[{"id":1370,"href":"https:\/\/www.oqiita.com\/index.php?rest_route=\/wp\/v2\/posts\/677\/revisions\/1370"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.oqiita.com\/index.php?rest_route=\/wp\/v2\/media\/733"}],"wp:attachment":[{"href":"https:\/\/www.oqiita.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=677"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oqiita.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=677"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oqiita.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=677"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}